Why Does the Engine Belt Make Abnormal Noises?
2 Answers
Abnormal noises from the engine belt may be due to a reduced friction coefficient on the belt surface or excessive belt wear, requiring immediate inspection and replacement by the owner. Below is relevant information about engine belts: 1. Replacement Interval: The replacement cycle for engine belts varies by vehicle model. Typically, the timing belt should be replaced every 60,000 to 80,000 kilometers. Some higher-quality belts may last up to 100,000 kilometers. 2. Precautions: During routine maintenance, it is advisable to regularly inspect the timing belt. If cracks are found, do not continue using it; replace it immediately to avoid potentially severe consequences.
I was startled when my car engine suddenly made a squeaking noise while driving, it sounded like a scream. After checking, I found out it was due to the aging of the engine belt, with surface wear or looseness causing such noise when slipping. The tensioner pulley might also be problematic; if it doesn't tighten the belt properly, it's prone to abnormal noises. Worse, if the belt cracks or gets contaminated with oil, the increased friction leads to continuous noise. I immediately went to the repair shop to replace the new belt and had the tensioner and accessory bearings checked before the noise stopped. To prevent this, inspect the belt condition every six months, and don't let it crack too much, otherwise, a high-speed breakdown would be dangerous.
