Can a serpentine belt cause rattling noise?
Bad Serpentine Belt Tensioner This part is spring loaded and when its internal spring breaks or when the tensioner pivot wears out it can cause a loss of pressure which will cause the belt to slip and then quickly grab causing a rattling sound.
What causes a rattle from the serpentine belt?
Serpentine belt failure could – in very unfortunate instances – lead to Timing Belt failure (when serpentine belt or scraps get in the TB path (@ harmonic balancer…). When sliding the serpentine belt off (or putting it on), I would start (or do it last for re-mounting) at the smooth rollers (circled in the picture).
What makes the rattle on a VW tensioner?
(Just make sure you’re turning things in the correct direction – many people get confused… the pulley screws on the alternator shaft normally, but because many people turn the shaft rather than the pulley, it appears to be a left-hand thread, which it isn’t…)
Is it possible for a serpentine tensioner to fail?
It’s very common for these to fail, and one of the tell-tale signs is the shaking of the serpentine tensioner… (They’re also known for disintegrating, so better make sure yours is in good shape… they’re not too expensive, but you do need special tools to remove them from the alternators…
Why is my VW Jetta making a rattling noise?
I’ve got an 04 Jetta and it’s got a rattling noise at idle. It changes if the rpm is raised, a/c is turned on or steering is turned. I tracked it down to the serpentine belt and the tensioner, it’s moving quite a bit. If I put some pressure on the tensioner the noise goes away.
Serpentine belt failure could – in very unfortunate instances – lead to Timing Belt failure (when serpentine belt or scraps get in the TB path (@ harmonic balancer…). When sliding the serpentine belt off (or putting it on), I would start (or do it last for re-mounting) at the smooth rollers (circled in the picture).
(Just make sure you’re turning things in the correct direction – many people get confused… the pulley screws on the alternator shaft normally, but because many people turn the shaft rather than the pulley, it appears to be a left-hand thread, which it isn’t…)
When to test a worn serpentine belt tensioner?
A worn automatic serpentine belt tensioner can cause belt squeal, misalignment and belt chirp, and alterantor bearing damage. Automatic tensioners tend to wear out at around 100K miles. If you have a belt noise or vibration and you’ve changed the belt, it’s time to test your belt tensioner.
It’s very common for these to fail, and one of the tell-tale signs is the shaking of the serpentine tensioner… (They’re also known for disintegrating, so better make sure yours is in good shape… they’re not too expensive, but you do need special tools to remove them from the alternators…
What does a bad serpentine belt tensioner sound like?
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. If the tensioner is loose the belts may squeak or squeal, especially when the engine is first started.
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.
How do you stop a squeaky belt?
Remove your gear and wear the belt. If the noise subsides there is your issue. Baby powder works great to alleviate the sounds. Sprinkle some around and under the belt keeper, under the buckle area, and under any gear you carry.