In life，We will always encounter car troubles of one kind or another，Today，The editor will give you a summary of the determination and solutions to the most common car faults。After reading，When encountering similar malfunctions in daily car use，You can also know the reason，Response rationally。

Cause analysis: When the pointer of the meter shows that the oil pressure is abnormal，Indicates that the engine component is faulty。If the fuel gauge pointer shows low pressure or the gauge pointer shows large fluctuations，It may be due to heavy wear of the oil pump、The filter is blocked by dirt、The oil suction filter is set to expose the oil surface、Low oil level、Caused by air mixed in the oil line and a faulty pressure gauge, etc.。Also，seabet myLubricating oil viscosity is low、Follow xsjiaoliu，Equivalent to hiring a mobile vehicle expert。Poor oil line sealing and lubrication、Lubricating oil supercooling viscosity is too high、Excessive sludge deposits in lubricating oil can also cause abnormal display on the oil pressure indicator。
Solution: Go to the repair shop for replacement and repair in time.

Cause analysis: The engine has two major circulation systems，One is the coolant circulation system，The other is the lubricating oil circulation system，The two systems are not connected to each other。If there is oil in the water or water in the oil，Indicates that there is a problem somewhere isolated in the two circulation systems。“Water has entered the oil” and “Water has entered the oil” are two different types of faults。“The oil is filled with water” means that there is something wrong with the engine body itself，And "water gets into the oil" is mostly caused by engine accessories，The nature of the fault is different。
Solution: Go to the repair shop for replacement and repair in time.
　　

Cause analysis: The oil lamp lights up in two situations: real and virtual。So-called reality，The oil pressure is really low，Low enough for the indicator light to issue a warning，Indicates that the lubrication system is indeed faulty，Must be excluded。The so-called virtual，As suspected，There is no fault in the oil lubrication system，The oil pressure indicator light system has failed，Indicator light illuminated by mistake。
Solution: Although this fault will not affect the normal operation of the engine，But the root cause should be found in time，It’s better to exclude。Usually the possibility of real symptoms is higher，Should be used as the main idea to determine the fault。

Cause analysis: Generally it is due to uneven wear of the front tires，Due to the use of newly repaired tires or uneven tire padding and deformation of the steel rims。Because，When the wheel speed is faster，The torque driving the steering wheel to rotate mainly comes from the deflection of the tire or steel rim。When the deviation of the tire or steel rim exceeds 3mm，The yaw torque can drive the steering wheel to swing left and right。
Solution: Go to the repair shop for inspection，Replace tires or rims as appropriate。

Cause analysis: Generally it is due to loosening of the bolts connecting the brake drum and wheel hub，The wheel hub bearing hole is loose and the brake drum is bored off-center, resulting in uneven thickness of the brake drum，Due to imbalance。
Solution: Go to the repair shop for repairs in time.

Cause analysis: careful friends will find out，There is normal consumption of lubricating oil even when the vehicle is in good condition，But sometimes the car is in poor condition，seabet ioThe car’s exhaust emits blue smoke，Follow xsjiaoliu，Equivalent to hiring a mobile vehicle expert。In fact, this means excessive lubricant consumption，Generally speaking，The consumption of lubricating oil is nothing more than two situations，Enter the combustion chamber to participate in combustion，Or oil leakage。The reason why oil can escape into the combustion chamber，Mainly due to severe wear and tear of parts，The fit gap is too large，Or the oil pressure is too high，Causing oil to escape into the combustion chamber。The leakage of engine oil is mainly due to the hardening and aging of the sealing gasket.Valve stuck。If it is an old vehicle，Generally, the sealing gasket is not tightly sealed due to aging。
Solution: It is best to go through a professional maintenance center，Determination by maintenance engineer，And implement proven solutions。

Cause analysis: After the car has been used for a period of time, the door glass will appear to be raised and lowered，There is a slight "rattling" sound。Especially on the driver’s side。This is mainly because the wind and sand in the north are larger，There is often some fine dust and grit left at the contact point between the door glass and the sealing strip，Causing noise when the glass is raised and lowered。At this time, clean the sealing strip of the door glass and the sand and dust in the slide groove in time，Otherwise it will scratch the door glass。

Cause analysis: After moving the handle of the turn signal，The turn indicator lights on the dashboard are flashing faster than usual，This is a fault。Usually it’s because the steering light bulb on one side is broken，Caused by changes in the resistance of the line。
Solution: Go to the repair shop for replacement and repair in time.
　　

Cause analysis: It feels good to use wipers when it’s not raining heavily，But when it rains lightly and starts the wipers，You will find that the wiper will leave uneven wipe marks on the glass surface；This condition indicates that the wiper blade has hardened，Or if the wiper blade is scratched, it will cause uneven wiping，Residual dirt formation。
Solution: Replace the wiper or wiper film surface。But you should pay attention when replacing，Different in model and year，The installation methods and lengths of wipers are different。Some wipers only need to replace the rubber sheet，Some wipers need to be replaced as a whole。

Cause analysis: This phenomenon occurs when your vehicle uses heater，Usually caused by a slight leak in the heating water tank in the cab。The fog on the front windshield is caused by the wind generated by the blower in the car and the antifreeze leaked out of the air duct，Caused by condensation on the front windshield，At the same time, people can also feel the special smell of anti-icing fluid。The fog will gradually dissipate，The fog will gradually dissipate。
Solution: Go to the repair shop for replacement and repair in time.
　　

Cause analysis: It is often caused by the "swaying" of the front wheel while driving，The reasons are: padded tires or vehicle repairs cause the total seabet appbalance of the front wheels to be destroyed；There are loose parts in the drive shaft assembly；The dynamic balance of the drive shaft assembly is destroyed；Vibration absorber failure；The leaf spring stiffness is inconsistent；Loose wear and tear of steering system parts；Improper front wheel alignment。
Solution: Go to the repair shop for replacement and repair in time.
　　

Cause analysis: If the car is running，The coolant temperature gauge indicates that it will reach 100℃ soon，Or when starting the car when cold，The engine coolant temperature rises rapidly to boiling，Return to normal after replenishing coolant，But the engine power is significantly reduced，Follow xsjiaoliu，Equivalent to hiring a mobile vehicle expert。Indicates a failure in the engine mechanical system。Most of the causes of this type of failure are: serious water leakage in the cooling system；The cylinder gasket that isolates the water jacket from the cylinder was washed out；The main valve of the thermostat falls off；The fan drive belt is loose or broken；The water pump shaft and impeller are loose；Fan clutch is not working properly。
Solution: Check the cause of the failure，Repair and replace accordingly。
　　

Cause analysis: It may be that the specifications or air pressure of the front wheels on both sides are inconsistent；The caster angles or wheel camber angles of the front wheels on both sides are not equal；The front wheel hub bearing clearances on both sides are inconsistent；The camber or elasticity of the leaf springs on both sides is inconsistent；The wheelbase difference between the left and right sides is too large；The wheel brake clearance is too small or the brake drum is out of round，Causing one side of the brake to become jammed，Makes the brakes drag；Uneven vehicle loading, etc.。
Solution: Go to the repair shop for replacement and repair in time.
　　

Cause analysis: There is a plastic or rubber ventilation channel on the back cover of the headlight，This channel must exist in the structure of the headlight，Otherwise the thermally expanded gas cannot be eliminated，This breathable channel can only let out gas but not let in water。
Solution: If there is slight fogging，It will dissipate quickly after air circulation or headlights are turned on，If there is always water or mist that cannot be dissipated, you need to go to a professional car repair shop to eliminate it。

Cause analysis: When the vehicle is traveling normally at about 96km/h，The entire vehicle is shaking，Reduce speed，The phenomenon disappears，If the jitter reappears when accelerating to about 90km/h, it means there is a fault with the car chassis。The cause of the failure is: tire dynamic balance misalignment；Front wheel alignment.Turn.Loose transmission and other mechanisms；Front wheel alignment.Wheelbase misalignment；Half shaft clearance is too large。
Solution: Troubleshoot the above faults in time，Avoid the vicious cycle，And cause other faults。
　　

Cause analysis: The former of these two phenomena that occurs during steering is called understeer，The latter is called oversteer，Indicates there is a problem with the steering system。There is another turning phenomenon，Follow xsjiaoliu，Equivalent to hiring a mobile vehicle expert。Initially understeer，It became oversteer midway，Turn sharply inward。This is the most dangerous reverse reversal phenomenon，Prone to accidents。
Solution: This situation only occurs on a few rear-engine cars。Please remember to get repairs in time。
　　

Cause analysis: It may be a spark plug failure or premature ignition time。If it is not a spark plug failure，You can judge that the ignition time is too early。
Solution: When the above fault occurs，Go to the repair shop for repairs in time。
　　

Cause analysis: Indicates that the mixture is too rich，Incomplete combustion。The main reason is that the car engine is overloaded，Insufficient cylinder pressure，Engine temperature too low，Improper carburetor adjustment，Air filter clogged，Some cylinders are not working and ignition is too late, etc.。
Solution: When excluded，Check whether the choke is fully open in time，Repair if necessary；Look at the main nozzle from the carburetor port after turning off the flame，If there is oil injection or dripping，The oil level in the float chamber is too high，Should be adjusted to the specified range，Tighten or replace the main gauge hole；Air filter clogged，Should be cleaned、Unblock or replace。