Skip the auto shop - Our mechanics make house calls

Q: Chirping rattling noise hood

asked by on

I started hearing a strange chirping-rattling noise coming from under the hood of my 2009 xD. It sounds like a tensioner pulley, bearing chirp, but it only happens when the car is stopped at a stop light and when the car is in park. It goes away when you start driving. I think it’s the tensioner pulley, but I can't find one for it anywhere. I just recently had the water pump and belt replaced. Do you know what this sound could be? How can we fix it?

A: The tensioner pulley is near the top center...

The tensioner pulley is near the top center of the engine. It is easy to spot as the back of the belt rides on the tensioner pulley and not the ribbed side.

Removing the belt to access the pulley to see if the pulley rotation is loose or notchy is not very difficult, but if the tensioner assembly needs to be replaced, this is a bit more complicated as the tensioner mount which comes with a new tensioner assembly that bolts to the engine has quite a few items in the way that make it challenging to access the bolts.

Before removing the belt, it may be a good to carefully use an engine stethoscope to locate and verify the location of the noise.

Because the engine will need to be running during a check with the stethoscope one needs to very careful to not get the stethoscope tangled with rotating engine parts as serious injury can occur.

You may want to enlist the help of a mechanic, such as one from YourMechanic, who will be able to verify and confirm the noise source and be able to correct the issue.

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: Turn signals keep blowing fuse under hood

If the fuse blows as soon as you put it in then you have a direct short and may have a bad flasher relay in the interior relay fuse box. Remove the relay and see if the fuse still blows....

Q: How can you check to see if one or more engine mounts are faulty? 2009 Honda Fit

Hi there - to detect a failed motor/transmission mount, a technician may use a jack or large pry bar to attempt to lift or move the engine/transmission to determine loose motion - indicating a failed mount. Some motor mounts are...

Q: Loud sounds coming from the back of the car and can be heard only on the inside

Since I am not able to hear the noise, I am taking a stab at this, but one common item that can make a noise would be a driveshaft center bearing. If the center bearing is going out it will...

Related articles

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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.