What Causes the Abnormal Noise After the Vehicle Shuts Off?

1 Answers
StKylie
07/29/25 5:42pm
This phenomenon is normal. The reasons for abnormal noise after the vehicle shuts off are as follows: 1. After shutting off, the engine continues to run at high RPMs, making it very hot. 2. After parking, the cylinder temperature drops unevenly, causing cooling contraction between metal joints, which results in friction and noise. Solutions are as follows: 1. Try not to shut off the engine immediately after parking; wait for a while. If the noise persists after doing this, it should be checked. 2. If there is no noise when waiting before shutting off, it indicates that the noise is caused by friction between some metal components in the engine due to cooling contraction. 3. If there are no other abnormalities with the car, this is a normal phenomenon.
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