Find your car starting to vibrate, drive jerkily, stumble frequently, slow down, and can't accelerate.
These symptoms may be caused by a wart. You should check quickly to prevent war from confirming.
Or in some cars you may notice that the car is consuming more fuel or the lights are showing.
You should fix it quickly because it may cause Other parts were damaged and damaged as well.

- For normal gas cars, you should check the valve. at a distance of approximately 80,000 – 100,000 kilometers
- And cars with gas should check valves more quickly than gasoline at a distance of 50,000 - 70,000 kilometers.
or as recommended by the car manual or specialized mechanic.

Valve setting should not be done manually. Because it takes a lot of precision and experience.
Anyway, the engine was turned on and it was recommended to check the spark plugs. ignition coil Clean the butterfly valves as well.

There are many factors that can cause this vibration, including the injector, etc.
Therefore, it should be checked by an expert technician first. In order to not have to repair more than necessary.