What are the consequences of a timing belt breakage in a sedan?

2 Answers
JasonRose
07/29/25 3:52am
The consequences of a timing belt breakage in a sedan include: loss of vehicle power, poor acceleration and unstable idling, abnormal engine noises, and in severe cases, it can lead to engine failure. The timing belt plays a connecting role, linking the timing wheel on the engine cylinder head at the top and the crankshaft timing wheel at the bottom. The method for replacing the timing belt is as follows: 1. Lift the vehicle and remove the right front wheel fender liner; 2. Remove the generator belt and the generator belt tensioner; 3. Loosen the crankshaft pulley screw; 4. Open the engine hood and remove the water reservoir; 5. Remove the engine mounting bracket and the protective cover on the timing belt; 6. Unscrew the generator fixing screw and remove the generator; 7. Remove the cylinder block mounting bracket and take off the crankshaft pulley; 8. Rotate the crankshaft to the top dead center position of the cylinder and mark it; 9. Remove the timing belt and the timing tensioner to complete the replacement.
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VanEzra
08/12/25 7:39am
After all these years of repairing cars, I've seen the common consequences of timing belt failure. It controls the synchronized movement of the engine valves and pistons. Once it breaks, the pistons can collide with the valves, causing the valves to bend, pistons to shatter, and even damage the cylinder walls. The engine is basically ruined, requiring a major overhaul or replacement. I've seen many cases where owners neglected to replace it, only to tow the car in and spend tens of thousands on repairs. This issue is often due to belt aging or exceeding the recommended mileage without replacement. I recommend checking it every 60,000-80,000 kilometers as per the manual and replacing it in advance to save trouble, money, and ensure safety. Always pay attention to the engine sound; if you hear any abnormal noises, check it immediately to avoid the risk of breaking down on the road.
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