Can a serpentine belt cause rattling?
Symptoms of a broken or damaged hydraulic belt tensioner include a leak from the tensioner or a rattling sound, causing the serpentine belt noise. The fix of this issue is that the belt tensioner needs to be replaced. The belt should also be replaced, unless it has just previously been replaced recently.
Can a bad belt cause a grinding noise?
1. Grinding or squeaking noise from the belts or tensioner. The most common symptom of a bad or failing drive belt tensioner is noise from the belts or tensioner. It is also possible for the tensioner pulley or bearing to wear out, in which case the vehicle will produce a grinding noise from the pulley.
What noise could a loose or worn engine drive belt cause?
This will cause the belt to wear faster. We have seen seized belt tensioners causing a loose serpentine belt to roll off the tensioner. The symptoms of a loose serpentine belt include a loud squealing noise when the engine is started or when the steering is turned all the way to one side.
Can a bad pulley rattle?
When the tensioner or tensioner pulley fails, the loss of tension can cause the belt and pulleys to make high-pitched rattling or chirping noises. If the pulley bearing completely fails, it can also cause a squealing or even a grinding noise.
What happens when the serpentine belt breaks while driving?
The serpentine belt is also known as an alternator belt, fan belt, or accessory drive belt. If your serpentine belt wears out, becomes damaged or contaminated, or breaks, engine accessories will not be able to spin at the proper speed, leading to decreased power to the electrical system.
Why does my serpentine belt make a grinding noise?
Slowly turn the pulley of each accessory by hand, paying attention to any sounds that may arise. Any grinding noise indicates that the bearings of the pulley are worn out. This can be confirmed by fixing the belt, and marking the edge of the pulley with a piece of chalk.
Why does my car make a rattling noise when I start the car?
” If your car engine is making a rattling noise on startup, idle or when accelerating you could have a faulty serpentine belt tensioner, a loose bolt on the mounting bracket, loose timing belt, rusty or broken flexplate, faulty harmonic balancer, loose fan blade, engine knock (pinging) or low levels of engine oil.
What causes a grinding noise on a pulley?
Any grinding noise indicates that the bearings of the pulley are worn out. This can be confirmed by fixing the belt, and marking the edge of the pulley with a piece of chalk. Then run the engine, and if the appearance of the mark coincides with the belt noise, then this indicates a damaged bearing.
Where does the noise come from in the engine?
Actually, the noise does not really come from inside the engine, but rather from the belts. Your car has several belts, one for the power steering pulley, one for the AC compressor and one for the steering (if the belt is rubber and not a chain).