Skip the auto shop - Our mechanics make house calls

Q: Serpentine belt came off

asked by on

The serpentine belt came off all of the pulleys except one. It is the biggest pulley on the bottom left side.

A: A thrown belt is generally caused by either...

A thrown belt is generally caused by either a seized peripheral - such as an alternator - AC compressor, or possibly a faulty tensioner or idler pulley. It is often suggested that if a belt has been thrown, that the belt be replaced, if all pulleys and peripherals check out fine. It is imperative that the belt be routed correctly, and installed properly, on each of the pulleys' guide tracks. You may want to enlist the help of a mechanic, such as one from YourMechanic, who can inspect all of the pulleys and drive items, and who can also properly install a belt to prevent damage from the belt being thrown in the future.

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・Save up to 30%

Get a quote

What others are asking

Q: Squeaking/creaking noise when stopping at slow speeds

Open the hood and check if any belt pulleys or tensioner are making the sound. Remove the serpentine belt and spin all of the pulleys that you can move. If they do not have a sound to them, then the...

Q: Car running rough and trying to stall

Hi. The idle air control valve needs replacing because it sounds like the idling is rough on your vehicle. Also, if you have a pulley starting to seize up, which include the idler pulley and the tensioner pulley, they may...

Q: Loud squeal when clutch is depressed.

Hello. A squealing clutch can be caused by a few different things, depending on where the noise appears to be coming from. If the clutch is squealing when you depress the pedal then it may be possible that the clutch...

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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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.