Q: Serpentine belt keeps coming off

asked by on

Never had this problem before I'm thinking it's one of the Pulleys . And do they just go out of line ? I don't know

My car has 15000 miles.
My car has an automatic transmission.

The pulleys will not just lose their alignment. For this to happen, there has been a failure somewhere. One of the most common causes I have found for this problem, on a serpentine belt system, is that the belt tensioner has failed and the pulley allows the belt to move around. However, the best way to troubleshoot the situation would be to remove the serpentine belt and check each individual component. Check the pulleys on each component to see if a bearing has too much play in it, or if something has loosened up and allowed the component to move around. If this is something you feel you could use a hand identifying and/or fixing, contact a certified mechanic, like those available at YourMechanic.com.

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. Serpentine belt keeps coming off

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: Transmission actualization (updated)

Hello - If i understand you correctly, you are asking where the 5 solenoids (you refer to them as "actualizations") for this transmission (4T60E) are located. These solenoids are mounted to the transmissions valve body, which is located inside an...

Q: Car is not starting after attempts to repair - 1999 Cadillac Catera

Hello. Before replacing any more parts I would recommend having the vehicle tested by a mechanic. Your problem is very repeatable and should be easy to isolate to an ignition or fuel-related cause for the stalling. Changing the ECM (also...

Q: new ac compressor now not energizing clutch

Hello. From what you describe, it sounds like there may be some sort of issue with the clutch pressure / cycling switch. These switches are responsible for activating the compressor when they detect that the pressure is at or temperature...

Related articles

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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.