Q: Alternator squeaking

asked by on

The alternator keeps squeaking on my truck, I've changer the alternator and belt and I still speaks.

My car has 96000 miles.
My car has an automatic transmission.

Hi there. Most of the time if the noise is still there after replacing the alternator it is because the squeak is coming from the belt or another accessory. The belt needs to be replaced and the tensioner checked to see if it is holding good pressure on the belt. If not then the tensioner needs to be replaced. One other common noise is the idler pulley so I usually check that also when the belt is off. If you want to have this repaired, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose the noise and make the appropriate repair.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Alternator squeaking

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: Alternator needs changed out. What tools is best for this?

To remove the alternator to your vehicle, you will need a serpentine belt tool (or a breaker bar 1/2 inch drive), a 3/8 drive socket set with a ratchet, and a medium side pry bar to help remove the alternator...

Q: Mirror won't swivel using inside switch

Hi. If your mirror is not longer functioning correctly, it may be possible that the mechanism connecting the mirror to the motor has become damaged. Many times, these are made of plastic, and can become brittle and easy to break....

Q: Coolant keeps magically disappering...

There is a leak, it just hasn't been found yet. I would begin by having a close look at the radiator cap - a visual inspection and a pressure test. The cap is so inexpensive I would just replace it...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
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...
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...