Automotive Shock Absorber maintenance of common sense

Usually the car travels 100000 kilometers to check a shock absorber, maintenance cycle between different models may be slightly different, your car will need to be replaced and maintenance, please through Auto Diagnostic Tool check.

Note: when you need to change the shock absorber is best in two at a time, there was a root before or after the shock absorber has a problem, need two to replace together before or after the shock absorber, because when you change a car balance uneven force, will cause shock absorber force is different, can appear more shock absorber problem!

1, before the purchase of goods, be sure to verify that car models, displacement and other information to ensure the correct types of accessories available. You can check your car maintenance manuals, you can use Launch X-431 PADII or Launch X-431 PAD tool to check.

2, each car has four vibration absorber, respectively is the front left, front right, rear left, right, if shock absorbers need replacement, best in two at a time, there was a root before or after the shock absorber has a problem, need two to replace together before or after the shock absorber, to avoid the car balance uneven force, causing shock absorber shock absorber problems.

3, the choice of quality products and services. Counterfeit Shock Absorber although the price is low, through the Autoboss V30 SPX or Xtool PS2 tool check, fake shock absorber of life less than half of the high quality shock absorber. During stretching due to bad seal caused oil spills, leaking oil would not achieve the damping effect, will have a serious sense of bumpy road. Moreover, in high-speed driving on the way will suddenly fail, causing the tilt, personal security will be seriously threatened.
Source: http://www.focalobd.com/blog/automotive-shock-absorber-maintenance-of-common-sense/

Do you know how to the scientific use of fuel additives

How to use the fuel additive to work better? Many intend to use additives owners are still hesitant, because we are not consistent with the view of additives, additives to buy more trouble. There is another kind of circumstance, a lot of people who have buy good fuel additive products but do not know how to use, also do not know how to use the OBD Diagnostic Tool check, that will also affect the fuel additive role play. Here we ask the repair shop of professional technicians explain to us the proper use of fuel additives.

For a long time the car must use, if don't want to continuous use can also between a month with more than three times, if intervals recommended dose it slightly larger, truly effective removal of carbon deposition, improve the fuel environment. The use of the most economical method is used for the first time the way plus three times in a row, that is a new car in the first three tank, every time, in accordance with the purchase of the directions specify the percentage of adding additives. After three times, run about 3000 km to 3000 km (is different according to different road conditions and oil), again plus three times in a row, repeat this cycle is more appropriate, you can use a Launch X431 V Pro or Launch X431 Diagun III tools to check the performance of the car, you can see the obvious transformation.

For used cars, during the initial period, the additive will engine oil system in the gum or sediment washing down, it will lead to clogged filters and oil hole, this time to deal with the oil system, a cleaning and maintenance, and then follow the new car Add mode to continue to use, so purifying effect is more ideal.

Adding proportion is 1: 1000, 50ml bottles of additives can be with 50 liters of fuel; in addition, add should as the condition, models and and vehicle vehicle condition is good for the first time for about 3 bottles; condition decreased, underpowered vehicles need continuous use more than 5 bottles until the condition improved. Then choose the next box to add one or 1000 kilometers every time to add. If the engine is in good condition, it can be used to reduce the proportion of the mixture.

To remind you, as the market chaos, consumers should choose a well-known brand certified, select Do not freeloaders, should pay attention to product quality, the company strength, service assurance and brand reputation, should choose to clean the engine and hydraulic system and other conservation tools Comprehensive features well-known brands. We recommend car stick with fuel additives, keeping nozzle without clogging, no coke combustion exhaust standards; with higher mileage cars, to select super-concentrated high-quality products, and gradually clean the oil and the engine, to clean, lubricate, by Horsepower easy start effect, you can also use Autel MaxiDas DS708 or Xtool PS2 tool to check car, you will reconsider whether or not to use fuel additives.
Source: http://www.focalobd.com/blog/do-you-know-how-to-the-scientific-use-of-fuel-additives/

Car steering wheel jitter causes and solutions

Car steering wheel jitter, is our daily driving in the process of one of the most common vehicles problem, especially the vehicles driving to 50000 km to 70000 km between the most easy to appear this kind of phenomenon. Steering wheel jitter, body resonance will lead to not safe driving, need to use Auto Diagnostic Tool in time to check the performance of the car.

Cars driving speed at between 80-90 km, will appear steering wheel jitter, more than 90 kilometers per hour is back to normal. This happens mostly caused by the tire deformation or vehicle transmission system, must use the Launch X431 GDS or Launch X-431 PADII tools to check whether the front wheel orientation Angle and the toe-in meets the requirements, such as loss of quasi should be adjusted; Set up front axle try to turn the wheel, wheel static balance condition and examine whether the tire deformation is too large, such as deformation should be replaced.

Traveling on a flat road vehicle normal, but encountered potholes, steering wheel jitter. This is due to the car in the driving, because of the pull rod ball head wear loose or glue joint fall off, as there is a tire wear and tear become irregular, should be sent to the professional repair point inspection, replacement of damaged parts.

Vehicle at 30-40 km per hour, the body has shake feeling, like the feeling of by boat. This happens mostly because the tires when used in daily due to causes such as brush, bump or aging and other reasons caused by the deformation caused, by the replacement of tires.

At high speeds the steering wheel appeared jitter when suddenly hit the brakes. Brake too hard, often may cause brake disc, brake pads, overheating, encounter cold deformation, caused by steering wheel vibration. Usually in the replacement of brake pads, brake pads, symptoms can be resolved, in order to drive the vehicle safety, should be regularly used Xtool PS2 or Autel MaxiSys Pro MS908P tools to check the performance of the car.
Source: http://www.focalobd.com/blog/car-steering-wheel-jitter-causes-and-solutions/

Brake fluid selection and usage guide

Automotive brake fluid is what we usually say brake fluid. Brake fluid is auto transmission brake pressure in hydraulic system of a liquid medium. Brake fluid when the choose and buy, the higher the level of the brake fluid, is better. So if the quality of the brake fluid problems, what consequence can you produce? Such as brake failure, etc. But people often ignore the inspection and replacement of the brake fluid, so it is necessary to regularly use the OBD Diagnostic Tool to check the brake fluid.

When long-distance driving, the engine is in operation for a long time, or in the summer temperatures are high, these will be used to increase the temperature of the brake system. If you are using low boiling point of the brake fluid evaporation will make brake system steam pipe filled with steam, produce gas resistance, thereby blocking the brake fluid diversion pipe, it can cause brake failure phenomenon, so you need to use Launch X431 V Pro or Launch X431 Diagun III tools to check the car's performance. So the good quality of the boiling point of the brake fluid is relatively high, so the brake fluid and good abrasion resistance and liquidity and the viscosity is moderate.

As long as we open the hood, you will find there are a milky white jar, that is used to hold the brake fluid place, you can see the inside of the brake fluid, outside marked with upper and lower limits of the scale, if the liquid level in its it shows the range of the normal amount of brake fluid. If you want to add brake fluid, it is necessary to add the same level now use the same brand of the same quality brake fluid, otherwise it will layer because of different formula or produce chemical change, influence the reliability of the brake fluid, reduce the braking effect.

So you must be pay more attention to the use of the brake fluid, brake fluid generally use 1-2 years later will replace, if you don't know what time replace, you can use the Autel MaxiSys Pro MS908P or Xtool PS2 tool inspection. Brake fluid when the choose and buy, in order to avoid buy the fake and shoddy products, you'd better choose in some famous brand of brake fluid, even the after-sales service is also very perfect.
Source: http://www.focalobd.com/blog/brake-fluid-selection-and-usage-guide/

Good driving habits to prolong the service life of the battery

On the basis of the daily maintenance, but also to develop good driving habits, as follows:

1, do not frequent starting vehicles
Do not exceed 5S at the start of the engine, if the first start fails, don't rush to start again. From the working principle of the car, at this time, a continuous starting motor will certainly cause the battery over discharge and damage. So the time interval should be more than 15s. If the 3 time is still a failure, use the Auto Diagnostic Tool to find out the reasons, troubleshooting.

2, under flameout state Do not use electrical equipment inside the car for a long time
This is often encountered in the daily use of cars, but also easy to overlook the problem. For example, sit in the car to rest, et al, to fuel many drivers turn off the engine and sat in the car listening to the radio or watch DVDs, so do the purpose of fuel is reached, but deeply hurt your battery. Correct method of use is stalled in a state of continuous listening to the radio to no more than 30 min, at the same time do not recommend use equipment such as car DVD in stall condition.

3, under flameout state try not to use external power supplies
External power equipment such as dust suction machine, a portable air pump, avoid by all means not to use in vehicle flameout state. As the power of these devices is bigger, use in a stall condition for a long time can easily consume battery power, and thus affect the normal starting of the vehicle. Can be used to Launch X431 V Pro or Launch X431 IV GX4 tool test battery working condition.

4, parking must turn off the lights and the car with electrical appliances
When parking stall, forget to turn off the lights, which is a lot of new car owners easy to make mistakes. After a night of consumption of the battery, at any time may not have electricity, can not start the car. Try not to use CD, cigarette lighter and other electrical equipment in the vehicle did not start. In the course of driving, the vehicle is also less used variety of automotive electrical appliances.

5, first close the air before flameout
Most of the owners are not accustomed to air-conditioning or allow air conditioning with the vehicle starting automatically after the start, which will cause the vehicle ignition switch every time, the air conditioning system will automatically start work, the consequences are directly lead to the vehicle instantaneous power load is too high, a long time will cause a certain loss of battery. Correct habits should be, every time to reach the destination, the first switch off the A/C keys, let the wind blow for a few minutes, to ensure that the air conditioning system internal drying, reducing the breeding of bacteria. Then turn off the air conditioner before the stall. Every time after restarting a car, air conditioning.

In short, general automotive battery life in 2 years or so, if the use of Autel MaxiDas DS708 or Xtool PS2 tools to maintain proper maintenance, up to 3-4 years. We understand its function, on the basis of proper maintenance, and can develop good driving habits.
Source: http://www.focalobd.com/blog/good-driving-habits-to-prolong-the-service-life-of-the-battery/

How to clean up automobile carburetors and fuel injectors

In the sandstorm weather, the vehicle will inevitably be covered with dust. The surface of the vehicle can be washed clean, but the car is the internal sand how to deal with it? Don't ignore the carburetor and fuel injection nozzle cleaning, the need for regular use Auto Diagnostic Tool to check car performance.

Generally the best put the car sent to the professional repair factory use Launch X431 PAD or Launch X431 IV GX4 Master tool inspection. first carburetor disintegration, the carburetor needle triangle and idle needle soaked in alcohol, mainly in order to remove carbon deposits; then carburetor cleaning agent with a special individual components, wipe clean assembled, with a wind blowing high-pressure air pump, the purpose is to detect patency carburetor, and finally installed carburetor, ignition adjustment.

To repair service station, required at the car after a sandstorm performance effect how, so service personnel according to the problem you provided, if the carburetor fuel mixture ratio is too thick, plug the oil coke, rear take the blue smoke, These faults are described piston ring wear ineffective.

For the clarity of the carburetor and fuel injection nozzle, mainly is to clean the idle valve and a filter screen, the cleaning should choose regular maintenance center, general street repair shop do not have these professional XTOOL PS90 GDS or Xtool PS2 equipment, just cleaning, simply not achieve any effect.
Source: http://www.focalobd.com/blog/how-to-clean-up-automobile-carburetors-and-fuel-injectors/

How to maintain the car battery in summer

Summer car battery maintenance is regularly use OBD Diagnostic Tool inspection maintenance, trailer coupling corroded battery case must be promptly treated to eliminate hidden dangers.

The heat of summer, the car in high temperature and under the hot sun, there will be a series of problems caused by high temperature and failure, often seen in the case of fire, causing casualties. Vehicle in the sun for a long time, the temperature inside the car sharply increased. It has been shown that when the outdoor temperature in 36 degrees Celsius, the car as long as two hours of exposure to the sun, the car will increase to 68 degrees Celsius temperature. It can be imagined, without the use of the Launch X431 IV GX4 Master or Launch X431 Diagun III tool to check the battery, in this environment is easy to short-circuit and spontaneous combustion.

How do the clean-up battery: lead to car battery pile head corrosion reason is battery liquid sulfuric acid. When the engine, generator will recharge the battery, the battery will produce hydrogen bubble, some acid composition will be followed by a hydrogen discharge battery, especially in charging system, such as the generator voltage is too high or charging without restraint, leads to charge excessive and so on, it will lead to a lot of sulfuric acid components into the battery on the panel to, then the two pile head will corrosion.

In addition, when the daily driving, before leaving the car, check to make sure that all lights and other electrical vehicle (such as radios, CD) has been shut down because of a long parking time will run out of battery power. Car battery to regular maintenance, carefully check the battery bolts through the vent plug, the battery will produce a large number of hydrogen, oxygen gas, once the exhaust valve failure or blockage, the pressure is too large, may cause explosion.

To avoid sparks, the pile head before the demolition of the battery, to all automotive electrical and ignition turned off, then use Autel MaxiSys MS908 or Xtool PS2 tool to check, and must remove the negative pole first, then remove the positive pole. In the back of the pile head, the positive electrode and the negative electrode. In addition, if you are not sure, it is best to consult the original operation of the factory in the process of safety precautions.
Source: http://www.focalobd.com/blog/how-to-maintain-the-car-battery-in-summer/

Car battery maintenance guide

Maintenance staff said, in the car maintenance, the battery maintenance is also important. Some vehicle owners and maintenance personnel for battery maintenance do not pay attention, do not understand, did not develop good habits and cause the battery life shortened, and even damage to other electrical equipment. General battery available 2-3 years, but if you use unreasonable, 3-4 months, it may be replaced, you can check the battery through the OBD Diagnostic Tool, real-time control of battery performance.

How to determine the battery needs to be charged? Can not rely on the brightness of the headlights or sound intensity to determine the working state of the battery, you need to use the Launch X431 V+ Pro3 or Launch X431 V Pro tool to check, if the brightness of the lights dimmed, to the time when the battery has entered a state of loss, the car must not be launched. In order to ensure the normal work of the battery, the owner is best used in the battery every half an hour, start the engine to charge a battery.

Today, the car on the electric equipment more and more, such as the car after the car to use the electric power of the equipment before the headlights, tail lights, reading lights and radio or CD, so, the owner in the use of these electric equipment, as far as possible not to let the battery overload work. If flameout, no need special should first turn off the headlights, and then stall, in the night started when the car should also start the reopen after the headlight, to minimize the damage to the battery.

If you let the battery in the engine stopped state, it must prevent the battery power loss, if the loss of power is likely to cause damage to the battery. Now there is a kind of technology can repair the damaged battery, adopts pulse charging technology which will activate battery electrolyte, still can continue to use. But if losing electricity, battery will be scrapped in advance.

A 4S shop maintenance staff had said, according to use Autel MaxiDas DS708 or Xtool PS2 tool to check the battery experience, in a good car battery case, open the headlights, reading lights, radios, capacity 35Ah battery operating time is about three hours, while the capacity of 45Ah battery operating time can be a little longer, between 3-4 hours. The higher the volume of the radio or CD, the greater the power, so the battery power usage time, also consider this issue. In addition, the battery of the new and old also affect the duration of the duration of the power. If users do not install some of the original electrical appliances, such as the bass, etc., will cause the excessive use of batteries. He warned the owner, if the battery is old, working time is best not more than 2 hours.
Source: http://www.focalobd.com/blog/car-battery-maintenance-guide/

Regularly check car shock absorber to ensure driving safety

Automobile shock absorber is one of the key parts of the car body, for driving safety is very important. With a period of time, be sure to use OBD Diagnostic Tool to check the shock absorber, timely repair and maintenance.

Car shock absorber if there has a leakage phenomenon, for the shock absorber is concerned, is undoubtedly a very dangerous thing. So, once the discovery of oil spills, we must make timely remedial measures. Focus of the inspection items in the oil seal, seal gasket rupture damage, storage cylinder cover, check the failure of these parts of the nut loose.

If discover leak, first tighten nut cylinder lid, but if shock absorber still leak oil, may be damage of oil seal, seal gasket failure, a new seals should be replaced. If still can't eliminate the oil spill, should pull out of the damping rod, if feel the hairpin or weight, reuse Launch X-431 PADII or Launch X431 IV GX4 tool to check whether the clearance between the piston and cylinder is too large, with or without shock absorber piston rod bending the piston connecting rod surface and the cylinder have scratches or marks.

If the damper does not leak phenomenon, should check the damper connecting pins, connecting rods, connecting hole, rubber bushings and other damage, sealing off, break or fall off place. If these were normal, should be further decomposed damper, check with the gap between the piston and cylinder is too large, cylinder with or without injury, the valve seal is good, whether the valve flap and the valve seat fitting closely, and whether the presence of shock absorber spring is too soft, or broken, grinding according to the circumstance or change a way to repair.

In addition, the shock absorber in the actual use of the sound of the failure, which is mainly due to shock absorber and leaf springs, frame or axle, rubber pad damage or fall off as well as the shock absorber tube deformation, oil shortage and other reasons, should identify the reasons, to be repaired.

Shock absorber in the inspection after repair, then use the AUTOBOSS V30 Elite or Xtool PS2 tool to check shock absorber performance, in order to ensure the maintenance effect is good, to ensure the normal use.
Source: http://www.focalobd.com/blog/regularly-check-car-shock-absorber-to-ensure-driving-safety/

How to maintenance automobile suspension systems

Is the so-called suspension system, between the wheel and the vehicle body, take on the job of carrying the body and absorbing the vibration, to provide the best comfort. Under normal circumstances, the shock absorber may have a fever, if you do not explain the fever shock absorber oil spills. Car driving, each time shaking up and down, the suspension will be rattled, and when the uneven road surface noise intensified, it means suspension system malfunction, may be a shock absorber damage or shock absorber rubber sleeve damage. If you are not sure what the reason, you can use Auto Diagnostic Tool to check the car's performance.

Suspension - Shock Absorber check
Suspension system not only affect vehicle ride comfort, but also as through sex, stability and adhesion performance impact on other properties. The original is in the suspension system includes shock absorbers, springs, anti roll bars, rods and other parts. In turn, especially a sharp turn, body roll is too large, indicating that the damper, stabilizer bar, or is the guiding mechanism parts are damaged.

Brake System - Brake oil brakes
In daily use, to use Launch X-431 PAD or Launch X431 V+ Pro3 tool to check whether the vehicle brake deviation, braking performance how, and how the effect of the parking brake (handbrake) is. In the maintenance of the vehicle, the brake system must first be carried out in the brake oil inspection, such as the brake pipe is cracked, brake oil leakage, etc.. The brake pedal is also a part of the need to pay attention.

After you replace the brake pads, check whether the brake pedal return to normal, daily driving time to pay attention to prevent the mat to slide under the brake pedal, so the brakes can not be trampled to death.

Brake system plus brake fluid can not be mixed, at present, the market most cars are equipped with two braking systems: foot-controlled brake (brakes) and hand control of the parking brake (handbrake). Replace the brake fluid, must take the original brake oil finished, cannot mixed with, more can not be mixed with air inside the brake fluid. Generally speaking, the brake pads wear degree with habits have great relationship, automatic car brake pads with better than manual transmission fast, generally more than 20000 kilometers later, each time to do maintenance to use Autel MaxiSys Pro MS908P or Xtool PS2 tool to check the car brake pads. This can better protect the suspension system. If the rubber sleeve is badly damaged, it must be replaced with the shock absorber.
Source: http://www.focalobd.com/blog/how-to-maintenance-automobile-suspension-systems/

Buy second-hand car need to pay attention to matters

Friends often say, want to buy a used car, but do not know how to choose, do not know what to pay attention, although used car can save a lot of money, but if you buy a lot wrong with the car, not worthwhile. Have this concern is not unexpected, can not just look at the appearance and to decision, you need to use the Auto Diagnostic Tool to check the performance of the car.

Sellers To make cars look more beautiful, will advance to the car beauty and let the car looks clean, almost like new. Care of the first impression, this car certainly will leave a deep impression. Do not know the surface of cooked glamorous car, in fact there are many problems, maybe a car accident. So in the purchase of second-hand car, do not be confused by the appearance of the car.

Buy big brands of cars, that new car prices are too high, wanted to buy a used car, but luxury cars follow-up care is very troublesome, generally small repair shop can not to repair, furthermore the price is also very expensive, as well as maintenance costs, maintenance costs, might be able to buy a nice new car. In fact, more popular models and brands are the best to take care of, where can go where maintenance, cost is also reasonable, they can even use the Launch X431 IV GX4 Master or Launch X431 Diagun III tool maintenance.

Many people buy a used car through a friend, first of all is a friend and not as embarrassed openings at bargain prices, view vehicle formalities are complete, a contract's time to take a closer look, these are designed to ensure their own interests.

Cars are not consumer goods, with more or less a long time there will be some problems, so use Autel MaxiSys MS908 or Xtool PS2 tools check the condition is necessary. Check whether the body has a collision, the chassis is damaged, the exhaust pipe is rusty, as well as the engine, gearbox, water tank is leaking, seepage. The most important is the engine, the engine is the heart of the car, so should pay special attention, in addition to see the engine's appearance is dry, exhaust pipe is sealed, but also to start the car, listen to the sound of the engine is normal.
Source: http://www.focalobd.com/blog/buy-second-hand-car-need-to-pay-attention-to-matters/

What are the functions of the automobile skylight

In the morning to open a automobile skylight: release of harmful gases
Car after a period of time of airtight, after Auto Diagnostic Tool detection, air filled with more benzene, formaldehyde and other harmful chemicals. The first thing in the morning on the car, that is, open the sunroof, the use of negative pressure ventilation principle, rapidly clearing the car of harmful gases.

Open sunroof traffic jam: prevent exhaust into the car
When traffic jams, all vehicles are at a standstill, automobile exhaust will inevitably spread in the surrounding air. Then open the sunroof, and close the side, the car's gas will soon be discharged, and then the outside air into the car through the air conditioning filter out large amounts of harmful substances.

After exposure to open sunroof: to quickly lower the temperature inside the vehicle
In the hot summer, the car after sun exposure, the interior temperature becomes higher than the outside, then into the car will be very uncomfortable. After Launch X431 PAD or Launch X431 GDS tool test data show, in order to quickly lower the temperature inside the vehicle, an effective method is to open air-conditioning at the same time open the sunroof, in the heat discharge and air conditioning refrigeration effect after began to emerge, the skylight close again.

High-speed driving to open sunroof: reduce wind noise
When you open the side windows high-speed driving, the owner often be annoying noise and he could feel the strong winds plagued also affect driving safety. If you then open the sunroof, close the side, which can effectively prevent this from happening.

Cold Weather open sunroof: Quickly eliminate car mist
Use skylights defogging defogging is a quick way. Especially in the summer and fall, rain, humidity. Alice ventilation position only need to open the sun roof to the rear, the front windshield can easily eliminate fog, ensure traffic safety, when necessary, require the use of Xtool PS2 or AUTOBOSS V30 Elite tools to detect car performance.
Source: http://www.focalobd.com/blog/what-are-the-functions-of-the-automobile-skylight/

How to correctly use car air conditioning

The correct use and maintenance will maximize the performance of air conditioning and extend the service life, and the error use will greatly damage the air conditioning systems, to make life greatly reduced. Automobile Air Conditioning life depends largely on whether the user is able to correctly use and maintenance. You can use the Auto Diagnostic Tool to check car air conditioning performance, air conditioning installed on the car must be carefully read the use of instructions, in accordance with the above instructions.

1, In order to avoid the excessive load of the engine starting, while the air conditioning compressor can quickly into the best working conditions, the first not to rush to the open air. Should put doors, windows open, you can use a fan for ventilation, etc. twenty or three minutes later to sit in the hot gas discharge start the car, and do not rush to close the windows, turn on air-conditioning outside the circle, when the inside and outside the temperature is close, and then close the window, enabling the internal cycle.

2. Select the appropriate air temperature, air conditioning maintenance is the first step. Because of the hot weather, many owners prefer to adjust the temperature too low, which will affect their health. Under normal circumstances, the compartment temperature difference with the outside temperature should be 5 ℃ to 6 ℃, the optimum temperature of air conditioning is 18 ℃ to 25 ℃.

3, Refrigeration and air conditioning wind best blowing up, because the cold air to the sink, the direction of the wind tests are best choice blow face gear, adjust the outlet up effect is best, don't choose the windshield of the block, because the temperature of the windshield is very high, would offset a large refrigeration effect. When selecting wind speed gears don't always use top gear, big air volume refrigeration effect is not good. If only the front occupants to choose 2 or 3 block wind speed is enough.

4, suggested that the owners to best in preparation for parking in front of the 6-7 minutes will close the air, let the remaining heat from the evaporation tank water drying, eliminate and outside temperature, so that you can easily keep air conditioning system relatively dry, can reduce air conditioning odor. Moreover, in front of the parking lot to close the air conditioning, will avoid the impact of the battery and air conditioning, to prevent damage to the engine.

Automotive air conditioning system in use process, the air will flow in the blower, refrigerating system evaporation tank, heating system of the small water tank and the air duct. As long as the air conditioning system blower or the air intake mode choice in the indoor cycle, regardless of whether the use of refrigeration devices, air will enter the system. Through Launch X-431 PAD or Launch X431 GDS tool to check show that the above device surface accumulation with a lot of dust, moisture, bacteria and other dirt, and will cause damage and allergic reactions to human respiratory system and skin, directly affect the occupant's health, and air-conditioning system itself will appear refrigeration effect is bad and a small amount of wind and other fault.

Under normal circumstances every 5,000 km or 3 months to conduct a clean air filter, every 20,000 km or 12 months use Xtool PS2 or Autoboss V30 SPX tool to check the air conditioning, and replace the air filter. This will ensure that you can enjoy the fresh clean car interior environment to ensure your health.
Source: http://www.focalobd.com/blog/how-to-correctly-use-car-air-conditioning/

Automotive timing belt function and check methods

The engine timing belt also called a toothed belt, The crankshaft and camshaft are connected by the above tooth groove. We know that the engine is in normal and stable work, the movement of the piston position, the valve open and close time, fuel injection and ignition time must be synchronized, and this is accomplished through the timing belt, you can use the Auto Diagnostic Tool to check the timing belt working performance.

Timing belt belongs to the rubber parts, with the increase of engine working time, timing belt and timing belt accessories, such as timing belt tensioner and pumps will wear or aging. If can cause the vehicle broke down after fracture belt, the engine internal valve damage, serious can cause the abandonment of cylinder cover. Not only to spend more, but also a long time to repair. Therefore, we need to use the Launch Diagnostic Tool or Autel Diagnostic Tool regularly to check and maintain the timing belt.

Check automobile engine belt consists of two elements:
First, check the belt tension, then you can use the thumb, strongly pressed the middle two belt pulleys. The pressing force of about 10kg, if the reduction of the belt is about 10mm, is considered proper belt tension exactly. If excessive pressure is considered insufficient belt tension. If the belt hardly occurs reduction is considered excessive belt tension. When the lack of tension, the belt is prone to slipping. The tension is too large, it is easy to damage various auxiliary bearings. For this reason, it should be related to the adjusting nut or bolt loosen the belt tension adjustment to the best state.

In addition, it must be noted that the wear of the belt. Old belt badly worn, the belt and pulley contact area dropped. Then as long as the force of a press belt, the belt will sink deep into the pulley groove. If the belt rubber is aging, must promptly replace the new belt.

Xtool PS2 or Autoboss V30 SPX tool inspection data show that cars generally every 80,000 km replace the timing belt; five-valve cars are generally replaced every 60,000 kilometers per timing belt. It should be noted when replacing the timing belt, appendages such as tension pulley, water pump should be replaced together.
Source: http://www.focalobd.com/blog/automotive-timing-belt-function-and-check-methods/

How to Clean EFI engine gasoline injection system

EFI engine is currently using a wide range of devices on the car, compared with the conventional carbureted fuel system, EFI engine fuel supply system, not only complex, but also parts with precision. When cleaning maintenance to must pay special attention to, when necessary also need to use Auto Diagnostic Tool to check the engine oil supply system.

During cleaning maintenance, some parts can not be disassembled and dismantled, some parts assembly requirements is high, which makes fuel injection system than carbureted gasoline vehicles are more vulnerable to gasoline in the glial, sediment hazards, resulting in clean work is very complicated.

Engine fuel supply system, into the exhaust system is clean, has a decisive influence on car driving performance and even. Due to the influence of driving environment and fuel quality, the injection nozzle, intake manifold into the exhaust valve and combustion chamber and other prone resin sediment, through the Launch X431 PAD or Launch X431 GDS tool inspection data show, affecting the normal fuel supply, caused by fuel injection quantity control are not allowed, atomization adverse, oil pressure regulator failure, resulting in engine idle speed instability, poor acceleration, knock, lack of fire, increased fuel consumption, exhaust emissions exceeding etc. fault phenomenon occurs.

In order to clean the oil supply system need to solve the problem from the inside, they usually avoid demolition clean way. Vehicle cleaning job by Xtool PS2 or Autoboss V30 SPX special equipment and cleaning agents, under certain pressure and flow control, intake manifold, fuel injectors, intake and exhaust valves and thoroughly clean the combustion chamber, in order to restore normal operation of the fuel system to ensure good driving performance of the car.

Source: http://www.focalobd.com/blog/how-to-clean-efi-engine-gasoline-injection-system/

Steyr 91 series heavy duty truck air filter maintenance guide

Steyr 91 series heavy-duty truck engine adopts a dry air filter. Hyundai increased use of paper air filter, high efficiency air filter paper, Auto Diagnostic Tool test data shows that only 0.1% to 0.3% transmittance of dust. Use paper air filter can reduce wear of the cylinder and piston, extending engine life. Should be used with care and attention to the following points:

(1) Master the characteristics of wd615 engine paper filter and cleaning method
This air filter, the outer filter element is treated with microporous filter paper, and the surface is treated by resin.. In the engine operation, the air filter through the microporous filter to the dust, ensure clean air into the turbocharger and then into the cylinder. Senior internal filter made of felt, a safety cartridge. In use, the filter will pick up around the outer layer of dust. Clean the air filter outside filter, not used water, oil, should prevent oil dip filter; commonly used method is to gently pat. Specifically: gently tap on the tire, beat the dust out, and then dried 0.4mpa the following air purge. When the purge should be blown inside out.

(2) Regular cleaning and replacement of filters
In Steyr 91 series of heavy-duty vehicles so that there shall maintain provisions for periodic air filter cleaning and replacement, in order to avoid excessive dust adhered to the filter, causing the intake resistance increases, reducing engine power and increased fuel consumption. Cars with 2000 ~ 4000km, air filter (inside and outside) clean, replace the filter at the outer 12000km, Launch X-431 PAD or Launch X431 Diagun III tool checks show that: in the best six months to replace the filter. If the filter is damaged should be replaced promptly.

(3) Installed correctly
In the inspection and maintenance of air filters, the seal on the filter pad must be installed well. Rubber gaskets easy to aging and deformation, the air is easy to flow through the gap from the seal, the dust into the cylinder. If the gasket aging, the best replacement of the air filter. External filter meshes such as rupture or the upper and lower end caps glued joints cracked should be replaced.

Dry air filter is passed through a dry filter, such as paper filter, the air impurities in the filter. Light vehicles (including cars, mini-cars) is generally used as a single-stage air filter. Its oval or elliptical shape and flatbed. The filter material is filter paper or nonwoven fabric. Filter cover with metal or polyurethane, the shell material is a metal or plastic. At rated air volume flow, original filtration efficiency filter should not be less than 99.5%.

Heavy duty vehicle due to poor working conditions, it must be more than one air filter. The first stage cyclone pre-filter (such as a blade ring, swirl tubes, etc.), used to filter impurities coarse particles, filtration efficiency above 80%, the second stage fine filter is a porous paper filter (commonly referred to as primary filter), the filtration efficiency of 99.5%. after the main filter element and a security filter, its role is in the installation and replacement of the main filter element, or in the main filter accidental damage, to prevent dust from entering the engine, you can regularly for the use of Xtool PS2 or Autel Maxidiag Elite MD703 tools to check the engine performance, the core material more secure non-woven fabric, but also the use of filter paper.
Source: http://www.focalobd.com/blog/steyr-91-series-heavy-duty-truck-air-filter-maintenance-guide/

Anti-lock braking system ABS function introduction

Anti-lock braking system ABS can be installed on any car with hydraulic brakes. It is the use of the valve body of a rubber balloon, when put on the brakes, giving the brake oil pressure, flooded to the ABS valve, when the airbag use compartment in the middle of the air pressure to return, so to avoid wheel lock dead center. When the wheel is about to reach a dead lock, brake oil pressure the effects of repeated balloon, under the OBD Diagnostic Tool check, found in a matter of seconds can be 60 ~ 120 times, in does not stop brake, relax. ABS is composed of wheel speed sensor, engine speed sensor, solenoid valve, computer and hydraulic control unit (hydraulic regulator), and its characteristics are as follows four:

1, ABS with excellent performance and self diagnostic capabilities, you can rest assured that use. In addition, the use of ABS and the common brake system using almost the same, braking to foot on the brake plate normal braking can be, ABS will own the brake hold at the optimal point.

2, the car brakes, the braking force of the four wheels are different, if the car's front wheels to lock, the driver can not control the direction of travel of the car, prone to risk of a collision, if the first locking the rear wheels, can appear the skidding, tail flick, if installation of ABS, can avoid four wheel is locked, Launch X-431 PAD or Launch X431 GDS tool can detect ABS data, the ABS system improve the stability of the vehicle in the braking process;

3, compared with the conventional braking system, under the state of emergency braking, ABS can make the wheel in both rolling and drag, which greatly increases the tire and the ground friction and shorten the braking distance, namely the so-called optimal braking point or region, while the ordinary brake system is unable to do this;

4, It is proved that the wheel fully locked will cause tire cup type wear, make the uneven abrasion on the tire surface, thereby increasing the tire wear and tear.

Thus, ABS anti-lock system, can avoid the braking when the direction is out of control and wheel sideslip, make the wheel when the brakes are not locked, don't let the tire friction with the ground at one point, so as to increase the friction, in the Autel MaxiSys MS908 or Xtool PS2 tool checks found, ABS system makes the brake efficiency of 90% or more, while reducing brake consumption and extend brake drum, disc and double the life of the tire. Vehicles equipped with ABS in dry blacktop, rain, snow, skid resistance reached 80% - 90%, 30%, 10%, 15% - 20%.
Source: http://www.focalobd.com/blog/anti-lock-braking-system-abs-function-introduction/

Audi A6 car exhaust pipe black smoke

Audi A6 car engine operation of the exhaust pipe a small amount of black smoke emitted, exhaust gas is faulty. After testing, the engine power was normal. OBD Diagnostic Tool connector perform self-diagnosis, the engine system has a fault code, reads "00561, mixture adjustment exceeds the limit." Executive DTC Clear function, the fault code is cleared. Fault analysis, there may be poor oxygen sensor performance. View the data flow (functional path 01-08-007), the idle mode of the 007 data block 1 zone data (mixed gas formation control value) for -25%, 2 District data (oxygen sensor signal voltage) of 0 809V. Under normal circumstances, the mixture formation control value should be within the range of -10%, 10%, and the fluctuation of the mixture of the mixture is slightly fluctuation with the fuel injection quantity.. -25% data shows that the engine control module attempts to reduce fuel injection, in order to control the concentration of mixture in normal range. The signal voltage of the oxygen sensor is 0 809V, partial rich mixture, in conformity with the fault phenomena of the smoke.

By the principle of fuel injection, the engine control module mainly according to engine speed signal, air flow sensor signal to determine the basic fuel injection quantity, use the Launch X-431 PAD or Launch X431 GDS tool to check air flow sensor. Select the feature path 01-08-002, view the air flow sensor data (4 area data). The air flow at idle speed is about 7.5 kg/s, which is obviously larger than the normal 2 0kg/s -4... The 2 zone data is the theory injection time (crankshaft to a circle), the 3 zone data for the engine a working cycle of injection time (actual injection time). The actual injection time is on the basis of theory of injection time correction of, should be twice fuel injection time and the car of the two injection time almost the same it proves that the theory of injection time is too long, after correction of the actual injection time shorter. When the fuel injection time correction exceed the limit, the failure code will occur 00561. The result of the above detection is that the cause of the fault is the air flow sensor signal is too big 6 replacement air flow sensor, the fault completely ruled out.

Since the air flow sensor signal in the car idling just too high, and in the part-load conditions and acceleration conditions are normal, and therefore less impact on the overall condition of the engine, fuel consumption is not significantly increased. In addition, by Autel MaxiSys Pro MS908P or Xtool PS2 dynamic data analysis process it can be seen, although the engine control module based on the oxygen sensor signal identification to the mixture is too thick, but no corresponding reduction in the fuel injection quantity so that the concentration of the mixture back to normal, the reason is, fuel injection depending on the amount of engine intake air, engine speed, oxygen sensor signal is only a feedback signal as a mixed gas under closed-loop control mode, the fuel injection quantity correction within a certain range.
Source: http://www.focalobd.com/blog/audi-a6-car-exhaust-pipe-black-smoke/

Honda car air conditioning refrigeration malfunction maintenance

Honda automobile air conditioning refrigeration failure phenomenon. After filling refrigerant. Open air conditioning, on the electromagnetic clutch compressor suction no, idle speed is high and low (850 r/min to 1100 r/min), the fan rotation is normal, but poor refrigeration, you can see the real-time data by OBD Diagnostic Tool.

Detection of electromagnetic clutch of the compressor line, the voltage is normal. After the failure of the circuit is determined, the high and low pressure port of the air conditioning system is measured by using multi meter.. As a result, the pressure at high and low pressure is abnormal, and the pressure is high and low, and under the Launch X431 Diagun III or Xtool PS2 tool checked, the engine was found to rotate abnormally. Ask the driver, there is no phenomenon before the refrigerant filled, and then suspect that there may be too many refrigerants.

Gradually sucked out of a portion of the refrigerant, the engine speed changes observed in the tool to see a few bubble, accelerate to 1700 r/min when bubbles disappear, troubleshooting.

When the air conditioning system of the refrigerant injected too much, it will reduce the flow of refrigerant in the system performance, causing the compressor malfunction, poor refrigeration, the engine idle speed instability, You can check with the Autel MaxiSys MS908 or XTOOL VAG401 tool before you inject the refrigerant, and it will remind you how many refrigerants you should add.
Source: http://www.focalobd.com/blog/honda-car-air-conditioning-refrigeration-malfunction-maintenance/

Cleaning the car air conditioning condenser matters needing attention

For their own health, some owners will clean car air condensers, that's right, if you do not know how long it cleaned once, you can use the OBD Diagnostic Tool testing the performance of the automobile air conditioning, but on the cleaning agent to pay attention, the best use condenser cleaning agent.

Condenser cleaning agent safety environmental strong detergents, can dissolve quickly remove all kinds of heat transfer equipment and pipe scale, rust and other deposits, carbon steel, stainless steel, copper, iron and other metal almost no corrosion, different cleaning requirements can be used to clean the object with different proportions to achieve optimal results. After washing finished, use the XTOOL PS2 or XTOOL VAG401 tool to check the performance of the car.

According fouling situation, diluted 1 - 10 times the use does not affect the cleaning effect, but will extend the cleaning time. Can be used to clean all the circulation, can also be used for soaking and scrubbing. Even for a long time and a metal contact nor on metal corrosion.

If you use other cleaning agents, may be due to high alkaline ingredients, and damage to some of the components, so be sure to choose the right cleaning detergent, in peacetime, you can use the Autoboss V30 SPX or Xtool PS100 tool to check car various components, to see whether you need to replace the to avoid accidents.
Source: http://www.focalobd.com/blog/cleaning-the-car-air-conditioning-condenser-matters-needing-attention/