What Causes the Car to Shake When Warm but Not When Cold?

[SanKeira]

There are several reasons why a car may shake when warm but not when cold: 1. Unstable fuel pressure: If you have already cleaned the engine carbon deposits, washed the throttle body, replaced the gaskets and spark plugs, but still notice the car shaking at idle, it is recommended to visit a 4S shop to check the fuel supply pressure and the intake pressure sensor. Abnormal fuel pump pressure or incorrect readings and poor performance of the intake pressure sensor can both cause the car to shake. The solution is to check the fuel pressure and replace the components if necessary. 2. Aging engine components: Worn engine mounts can also cause the car to shake. Engine mounts are essentially the shock absorption system of the engine, responsible for absorbing minor vibrations during operation. If the engine mounts are faulty, these vibrations can be transmitted to the steering wheel and the interior of the car.