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?

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Chirping rattling noise hood

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: Hi Robert my cuestion is how much oil i put on a.c. compresor2006 scion xa

On your model, the total a/c system oil capacity is 3.50 ounces of PAG-46 oil. You would only add compressor oil to your a/c system if you install a new compressor that does NOT already have the oil pre-installed (it...

Q: Engine in bad condition

Yes, unfortunately if the oil had not been changed for many years this coupled with the overheating could have caused serious damage to the engine. 50 psi compression is a bad sign, this indicates massive blow-by in the combustion chambers...

Q: hearing loud clicking when I accelerate, when foot off gas, reduced sound, sometimes step on gas and its gone

Hi there. In most cases, a tapping sound will come from two areas; the top of the motor or the axle shaft area. With the engine, the tapping noise is either lack of oil lubrication in the top of the...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...