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Reasons for Abnormal Noises in the Front of the Car After Turning Off the Engine

2 Answers

DeIan

08/26/25 5:08am

Reasons for abnormal noises in the front of the car after turning off the engine are as follows: 1. Uneven engine cooling causing noise: After driving for a period of time, the engine temperature is high. After turning off the engine, the temperature of various components decreases, and thermal expansion and contraction cannot occur uniformly, creating gaps between metal parts inside the engine. Friction during cooling contraction produces noise. In such cases, it is recommended not to turn off the engine immediately after parking; wait for a while. If abnormal noises persist after following this method, it is necessary to visit a 4S shop for inspection. 2. For turbocharged cars, it could also be the sound of the turbo cooling: Under normal circumstances, the exhaust gas temperature reaches 600-700°C, accelerating the rapid rotation of the turbo and generating friction heat. After turning off the engine, thermal expansion and contraction are also very noticeable, resulting in abnormal noises.

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VonGarrett

09/08/25 7:02am

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