Skip the auto shop - Our mechanics make house calls

Q: Bad squeaking from under hood, could be pulley.

asked by on

I have a very bad squeaking sound from underneath the hood. Four years ago I had the serpentine belt replaced twice and the tensioner pulley replaced at the same time. I think it might be coming from another pulley.

Hi there. This noise can become very annoying, especially if it is very loud. If the noise typically occurs when the engine is first started and then goes away it can be the alternator bearing. If it is a constant noise it may be an issue with one of the idler pulleys or the water pump. You should enlist the help of a certified mechanic, like one from YourMechanic, who can who can inspect the noise by removing the belt and spinning each pulley one at a time.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: where to go to have a lost key made inexpensively

Your key has a transponder inside of it that communicates with the car's computer allowing it to start, lock and unlock when you are within a specific range of the vehicle. You will need to purchase at minimum a new...

Q: Battery light staying on

Hi. This could mean there is a short somewhere connected to your alternator. A mechanic can trace this issue along with any other issues along the way in order to diagnose the cause of your battery light.

Q: Still having a squeak

Any sound that happens like a squeaking on acceleration should increase or decrease with speed of the engine unless you have a problem from the belt squealing, then it will squeal and seem to be the same pitch. You will...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.