It is inevitable that the vehicle will malfunction while driving，However, there are some faults that make people confused，What you think is a real fault is actually a fakeFault, what you think is a false fault is actually a real fault.When your car has the following conditions，Don’t doubt it，Hurry and send it for maintenance。

While the car is driving，If the water temperature gauge is above 100℃，And the engine coolant temperature quickly rises to boiling，The temperature became normal after adding coolant，But the engine power has dropped significantly。When this happens, it may be that the engine temperature is too high and the cylinder gasket is damaged、Burnt bearing、Cause mechanical failure of the engine；Due to the temperature being too high，Resulting in a decrease in inflation，Reducing engine power；When the water tank is boiling，When the coolant boils and evaporates and overflows，seabet ioIt will increase the wear of various engine parts，Reduced engine life。

The engine temperature is too high on the road，If the cooling radiator is accompanied by "boiling" phenomenon，Do not add water immediately，Louvres should be opened immediately to increase air flow，When the water temperature drops and stops boiling，Use a wet towel as a hand pad，First unscrew the radiator water filling cap one stop，Release water vapor，Wait for a while and then open them all。Don’t turn off the flame immediately，If the engine is turned off at this time，All parts are in an expanded state，The fitting clearance of each component is very small，Some soft metal may fall off after shutdown，Some may even cause cylinder sticking。Should remain idle，Open all blinds。If the engine has been turned off，Use the crank handle immediately to prevent cylinder sticking。

When the vehicle is traveling normally at about 90km/h，The entire vehicle is shaking，No more shaking after the speed is reduced，If the jitter reappears when accelerating to about 90km/h, it means there is a fault with the car chassis。The reason for the shaking of the whole car may be that the tire balance is incorrect, causing the wheels to roll and jump while driving，Or suspension mechanism、Steering mechanism、Loose transmission mechanism，Cause toe value、Wheelbase misalignment，Leaf spring too soft，Causes the vehicle to resonate while driving，Induces shaking in the whole vehicle。Again，Half shaft clearance excessive，Cause the rear wheel to move irregularly while driving，Intensified wear，Causing unbalanced rotating mass，Causes the whole car to shake。

Driving，The car accelerates slowly and normally，But the car cannot speed up when accelerating hard。This usually occurs due to a fuel supply system failure，Have oil pressure controlled as required、Injection amount or ignition time，Problems with spark plugs and high-voltage wires, etc.。To solve this problem，We can replace the spark plugs、Replace the high-voltage line and check the oil pressure or fuel injection quantity。For inexperienced car owners，It is best to send it for repair as soon as the problem is discovered，So as not to delay again and again，Induces other faults。

The steering "wandering" when the vehicle is driving is mostly caused by the front wheel "swaying" during driving，The reason for this phenomenon is that the balance of the front wheel assembly is destroyed when the tires are padded or the vehicle is repaired；There are loose parts in the drive shaft assembly；The dynamic balance of the drive shaft assembly is destroyed；Vibration absorber failure；Loose wear and tear of steering system parts；Improper front wheel alignment；Inconsistent leaf spring stiffness。When this happens，It means your car needs maintenance。

While driving，The speed increases significantly when refueling，But the speed cannot be increased，This situation occurs，If it is a manual transmission，Usually caused by damage to the clutch plate，At this time, just replace the clutch plate。If it is an automatic transmission，It is caused by damage to the friction plate in the transmission。Don’t speed up in this case，seabet ioOtherwise it will cause greater losses。