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/

Summer car maintenance skills

Owners enjoy the car brings a variety of fun, and do not forget to do some of the necessary work, take good care of their car, regular use of Auto Diagnostic Tool to detect car, at the same time to avoid the failure of the car itself caused by traffic accidents, and put forward the following maintenance skills:

Protect the paint
Sun damage on the car paint, be sure to always wash and periodic waxing. If you want to do more thorough protection work, suggested a glaze or coating paint, paint to wear a protective clothing.

Check the brake
Under rainy wet pavement caused friction coefficient between the tire and the road surface is reduced, particularly at the tread has hydrocephalus, the lower the coefficient of friction, a sensitive braking system is particularly important, so one should always check the brake system.

Spontaneous Fire Prevention
Summer is the high incidence of spontaneous combustion vehicles, it is understood, driver's improper operation or car existence hidden danger is the main cause of car spontaneous combustion. Therefore to use the Launch X431 IV GX4 Master or Launch X431 V Pro tool check car oil electric circuit, found that aging line should be timely repairs, to prevent spontaneous combustion.

Using air conditioning
Into the car before you open the window ventilated, open the outer loop at the same time, to stay inside the heat discharge after open air conditioning, the cooling effect is better and faster. When the speed is less than 25 km/h, air conditioning should be placed in a lower gear, to prevent the occurrence of lack of electricity and air conditioning. Driving on rainy days, the window glass is fog, the influence line of sight, at this time as long as the direction of the wind will be dispatched to the windshield, open the compressor air conditioning, can be in a few seconds to achieve the purpose of effective mist.

Prevent evaporation
High summer temperatures, oil and water evaporation will increase, and therefore must take the fuel tank cap Gaiyan tubing to prevent oil leakage; always check the water level of the water tank, crankcase oil oil level, height, brake master cylinder within the brake fluid level and inside the battery electrolyte density and liquid level height, etc. Illegal, want to add and adjust in time.

Note that "freezing"
In the summer, some people think antifreeze irrelevant, can be replaced with plain tap water, in fact, this approach is wrong. Professional preparation of antifreeze is not only low temperature, high temperature characteristics are particularly good. When high-quality antifreeze approaching 200 ℃ in order to be "boiling." In addition, there are rust-proof antifreeze, cleaning effect. Therefore, the choice of the original antifreeze still summer, it can play a "sunstroke" role.

Prevent puncture
Summer surface temperature is higher, automobile tire using the environment even worse, so be sure to pay attention to doing a good job of inspection and maintenance of the automobile tire, regular use of Autel MaxiSys Pro MS908P or Autoboss V30 SPX tools to check the tire pressure, to prevent puncture.
Source: http://www.focalobd.com/blog/summer-car-maintenance-skills/

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/

Automotive transmission belt regularly checked guide

The car drive belt is responsible for all parts of the movement, if it bad the car can not move. Because the engine is driven by a belt drive all kinds of auxiliary mechanism, such as an air conditioner compressor, power steering pump, alternator, etc., if the belt is broken, or there has been slippage, will be related to the loss of the auxiliary mechanism, or its performance decline, thereby affecting the normal use of the car. Therefore, it is necessary to check the drive belt regularly using Auto Diagnostic Tool.

Belt inspection method is very simple. First, check the belt tension, select the longest unsupported belt span intermediate applying moderate pressure with your thumb, if the reduction is about 10 mm in the belt, that the belt tension is just right. If the belt tension is too large, or too loose, it could result in slippery tooth, transmission is incomplete. And adjust the belt too tight, so that the belt is easy to tensile deformation, but also accelerate the pulley and bearing wear. For this reason, it should be related to the adjusting nut or bolt loosen the belt tension adjustment to the best, if you are not sure the best, you can use the Launch X431 V+ Pro3 or Launch X431 CResetter II tool check the belt the best condition.

In addition, in daily inspection should pay special attention to the wear of the belt. Because if the belt wear is serious, it will cause the belt and the belt pulley contact area to drop sharply. At this time, as long as a pressure belt, the belt is deep down to the groove of the belt pulley.

Also, if you find the belt surface cracks and spalling cracks appear phenomena such as sound or belt slipping occurs, indicating the belt may be broken and must be replaced immediately. If not promptly replaced, the belt once in a moving way break, the vehicle will not be normal driving.

In actual use, check and replace the automobile belts are very complex, generally professionals using the Autoboss V30 SPX or Autel Maxidiag Elite MD702 tool operation. Moreover, because the price of the belt is not particularly expensive, often change in time before the arrival of the service life of the belt is a common choice.
Source: http://www.focalobd.com/blog/automotive-transmission-belt-regularly-checked-guide/

Citroen car air conditioning compressor frequent starts

Configuration 8V engine and manual transmission Citroen. As the hot weather, frequent use of air conditioning systems, and found that air conditioning cooling effect is getting worse, specifically the phenomenon as follows: Press the air conditioning and refrigeration switch (Electric No. 584), air conditioning compressor to operate properly at first, but with the extension of working hours, use Auto Diagnostic Tool testing data showed that the air conditioning compressor electromagnetic clutch is frequent absorption and separation, intermittent failure caused by air conditioning refrigeration function.

Air conditioning system circuit diagram, the air conditioning compressor electromagnetic clutch frequent closing and analyze the cause of the fault separation, according to the possibility of making maintenance plan, and then to repair work as follows:
1) Check the engine compartment fuse box (Electric No. 52) of the fuse F12, normal. In the case of opening and closing of the ignition switch, voltage with a multimeter block measuring the terminal voltage connector 113 BIIA results were obtained for the battery voltage and 0V, normal. In the case of opening and closing of the ignition switch, air conditioner switch assembly measuring terminal 7 NA1 voltage, battery voltage, respectively and 0V, normal.

2) Replace the air conditioning switch, the failure remains. Replace the air conditioning control box, the problem persists, that failure has nothing to do with these two parts.

3) In the case where the engine is not running and the operation of detecting the line pressure of the refrigerant, the refrigerant is obtained by the static pressure of 500kPa, the dynamic pressure of the refrigerant: a high pressure of 1300kPa, a low pressure of 140kPa. The above measurements were compared with standard values, in line with requirements. This ruled out due to the refrigerant pressure abnormalities lead to the air conditioning compressor electromagnetic clutch pull and separate frequent failure factor.

4) Check the coolant temperature control box (appliance No. 53) and the related wiring. External line there is no problem. Replacing the coolant temperature control box test, fault still exists. Continue to check the fuse box in the engine compartment fuse, no abnormality was found. Check the coolant temperature control box plug voltage terminal 15N4,15N15 in the ignition switch is turned on is the battery voltage, Launch X-431 PAD or Launch X431 GDS tool coolant temperature measurements show that the control box supply line is no problem, thus excluding the coolant temperature control box failure factor.

5) Check the coolant temperature sensor (electrical No. 910 for coolant temperature control box to provide coolant temperature signal) and the line, there is no obvious anomalies. Replace the sensor, the fault persists.

6) Check the evaporator temperature sensor (Electric No. 912) and the line of work, there is no appearance problem. Measure the resistance with a multimeter evaporator temperature sensor found resistance is too large. Replace the evaporator temperature sensor, test, fault completely disappeared, ending maintenance work.

The evaporator temperature sensor is a negative temperature coefficient thermistor, its resistance decreases with increasing temperature. When the resistance is too big a problem occurs evaporator temperature sensor, the signal voltage will become larger, air-conditioning control box will mistakenly believe that the evaporator temperature is less than 1 ℃. To prevent evaporator freeze, air conditioning control box off the air conditioning compressor electromagnetic clutch operating power. After a child, Autoboss V30 SPX or AUTOBOSS V30 Elite tool checks found that the evaporator temperature is higher than 3 ℃, began to turn on the air conditioning compressor electromagnetic clutch pull. Again and again, the results of the air conditioning compressor frequent start of the fault phenomenon. The evaporator temperature sensor is a vulnerable part, only after the damage can be replaced.
Source: http://www.focalobd.com/blog/citroen-car-air-conditioning-compressor-frequent-starts/

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/

What causes a car to knock and car knock solutions

New buy the car engine appears knock phenomenon. I believe that there are some people who have a little in-depth understanding of the working principle of the automotive engine, should understand the engine appears knock whether quality problem. if you don't have any information about the engine of the car, then we look together, what is knocking? Why the engine will knock? What effect does the knock have on the engine? How to avoid the engine knock? Why use the OBD Diagnostic Tool to check the engine knock?

The so-called "knock" is not to say that engine would explode or violent shaking, but refers to the gasoline engine before the spark plug without ignition, sprayed into the cylinder fuel is because of the cylinder body and the high temperature and the occurrence of spontaneous combustion of a non normal phenomenon. The spontaneous combustion will not only cause engine cylinder in local temperature is too high, can not let fuel to participate in the work of the engine, resulting in power output in serious decline, resonance between the piston and cylinder wall, because of abnormal vibration caused by explosion is called "knock".

Engine knock is actually the most important reason is that gasoline grade is too low, we often say that the number 92, number 95 refers to the grade of gasoline, Gasoline label is neither refers to the purity, nor does it imply a lot of people often say that the so-called octane number, but gasoline anti-knock index, also known as anti-knock index.

Focus, Mazda 3 and other vehicles encountered the "knock", the manufacturers solution is to use Autoboss V30 SPX or AUTOBOSS V30 Elite tool for trip computer upgrade, the knock problem is solved.

Engine knock is not the most important step to upgrade software part, the modern automobile engine through hardware modifications also cannot let knock disappear, essentially the only solution is based on the actual demand of the engine, the correct selection grade of gasoline .

Recommend vehicle appear knocking, first switch to high-grade gasoline, suppress the occurrence of knocking fundamentally. Try to avoid prolonged idling stop, avoid high gear low speed driving, automatic models accelerate to overtake, use low gear when climbing or manual shift mode, can effectively reduce the production of coke, to suppress detonation engine protection is also very favorable. Timely use Autel Maxidiag Elite MD701 or Autel MaxiDiag EU702 tool to check the engine, regularly clean the throttle, using high-grade synthetic oil can also reduce the incidence of carbon, the same can effectively avoid the generation of knock.
Source: http://www.focalobd.com/blog/what-causes-a-car-to-knock-and-car-knock-solutions/

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/