What Causes Increased Noise and Vibration After Replacing the Timing Belt?

[AutumnAnn]

The reason for vehicle vibration after replacing the timing belt may be incorrect crankshaft connection. Issues with belt connection include: The timing belt ensures accurate intake and exhaust timing by connecting to the crankshaft with a specific transmission ratio. Belts are used instead of gears for transmission because they produce less noise, have minimal self-variation, and are easier to compensate. Obviously, the lifespan of a belt is shorter than that of metal gears, so it needs to be replaced regularly. Often, there is vibration at idle after replacing the timing belt. Misalignment of timing marks: If it is confirmed that the vibration is caused by the belt replacement, and the accessory model is correct, it may be necessary to check whether the timing marks are properly aligned. Deviation can cause vibration and lack of power, so a recheck is required.