Q: Screeching serpentine belt when the a/c is on. Is this a problem with the serpentine belt?

asked by on

Hi Joshua, I have a question about my wife's 2003 dodge neon. Recently we drove it from Nevada to California and back, and on the way back, the car started screeching very loudly when the a/c was on, or the car was in idle. Now that I am back home., if I start the car it instantly starts screeching until I barely press the acceleration pedal then the sound stops unless I turn the a/c on. I replaced the timing belt myself and this problem is still there. My question is, is this a problem with the serpentine belt? Or is it the alternator failing( the check battery light is on)

My car has 130000 miles.
My car has an automatic transmission.

Hi there. There is a problem with the alternator or a/c compressor clutch pulley. Check the pulleys out on each item and see which one is creating a heavy load or a skipping feeling as if the bearing is seizing up. The serpentine belt needs replaced for it is already burned from the pulley pressure. If you need further assistance with the screeching noise, then seek out a professional, such as one from Your Mechanic, to help you.

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. Screeching serpentine belt when the a/c is on. Is this a problem with the serpentine belt?

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: 2010 Subaru Forester power steering does not work, battery light is on, smell of rubber from engine compartment

It does indeed sound like your drive belt is broken. Your vehicle has two belts: one for the A/C and another for the power steering and alternator. Obviously, if the latter breaks, you no longer have power steering and your...

Q: My car seems to be reheating as I go on the highway or pass around 50mph,after that the temperature gauge starts going up to H

Common causes of overheating include low coolant level, a faulty thermostat, a plugged radiator, collapsed hoses, non functioning cooling fans, and a faulty water pump or drive belt. Certain engine faults, such as a leaking head gasket or poor engine...

Q: Do i have to buy new engine if water rusty in plugs and car won't start..

It is very common for the cylinder head gasket on these engines to leak oil and coolant. You may have to replace the cylinder head if it is damaged. If you have water mixed in the engine oil, then...

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.