Why is my serpentine belt rattling?
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.
Why does my serpentine belt make a noise when I accelerate?
If you have a worn out or damaged tensioner in your car, then this will directly affect the tension of your serpentine belt that is dependent on the pulleys of the system. Your serpentine belt could come loose and cause serpentine belt noises, resulting in the louder sounds when you accelerate.
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.
How can I tell if my serpentine belt is worn out?
Look for shiny spots like fraying or glazing on the outer side of the belt, which indicate a worn out belt. Check your owner’s manual or service manual for the belt’s service schedule. Check the belt for tightness — you may need a belt tension gage for this.
Can a car overheat with a broken serpentine belt?
The car won’t be drive-able and you would have to call a towing truck. If you drive your car with a broken serpentine belt, the engine would overheat because the water pump won’t work. If this is the case, you can get a new one on amazon.com
What are the symptoms of a bad serpentine belt?
Symptoms of a Bad or Failing Serpentine/ Drive Belt . Common signs include a squealing noise from the front of the vehicle, power steering and AC not working, engine overheating, and cracks on the belt.
What is the average life span of a serpentine belt?
The lifespan of the serpentine belt will depend mostly on the type of material it’s made of. Older style belts generally last about 50,000 miles, while those made from EPDM can last up to 100,000 miles.
What are the signs of a bad belt tensioner?
The most common symptom of a bad or failing drive belt tensioner is noise from the belts or tensioner. If the tensioner is loose the belts may squeak or squeal, especially when the engine is first started.
Why would a serpentine belt Squeak?
Exactly why a serpentine belt might squeak can be the result of various things. As the engine turns, the main pulley turns and that drives the belt. The belt, under tension by a spring-loaded, belt-tensioned pulley, also spins. It pulls the other drive pulleys with it, spinning the other accessories that the belt is attached to.