Skip the auto shop - Our mechanics make house calls

Q: My car is running fine but, today i hear a squealing sound when my car is turned on. What could this be?

asked by on

My car is running fine but, today i hear a squealing sound when my car is turned on. What could this be?

My car has 234000 miles.
My car has an automatic transmission.

Hi there. A squealing noise as you’ve described sounds like a belt noise. A loose, weakened, or stretched belt may be the culprit. However, a weak belt tensioner could also be the root cause of the noise. Either of these conditions lets the belt literally flap violently until it finally settles down. YourMechanic has several available technicians to assist you with a belt noise inspection, serpentine belt replacement, and/or belt tensioner replacement.

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
  • Home
  • Questions
  • My car is running fine but, today i hear a squealing sound when my car is turned on. What could this be?

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: Cv axles

Hello. This oil is actually transmission fluid and it is normal to be leaked out while changing them. Just be sure to check the transmission fluid after changing these to ensure not too much has leaked out and that you...

Q: When I start my 2005 Cadillac CTS there's a loud screeching noise then it goes away

There are a few possible causes for a squeal when the vehicle is first started. Typically, this is a sign that there is a worn belt, a worn tensioner, or a pulley that is either worn or out of alignment....

Q: What does the smell of burnt rubber mean on a 2012 Honda CR-V?

Check the drive belt on the engine and see if its still intact. Burnt smells in the car and then the air conditioning stops working means that the belt has burned off. This could be caused by the compressor clutch...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
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.