What Causes Loud Noise After Replacing the Timing Belt?

1 Answers
MacGraham
07/29/25 11:00am
Reasons for loud noise after replacing the timing belt are as follows: Timing Cover Friction: When abnormal noise occurs, first check the assembly. The noise may be caused by friction between the timing belt and the timing cover. Loosen the screws on the timing cover by half a turn to observe if the noise disappears. Accessory Belt Noise: Check the condition of the generator belt, as the noise may originate from the accessory belt. Excessive Belt Tension: If the tension of the timing belt is adjusted too tightly, remove the generator and air conditioning power steering belts to determine if the issue lies with these belts. If the timing belt tensioner is faulty, it usually needs to be replaced along with the timing belt. Bearing Issue: The noise may be caused by a problem with one of the engine bearings. Carefully identify the specific source of the sound. If the exact cause cannot be determined, it is recommended to visit a professional repair shop for inspection to identify the issue.
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