Skip the auto shop - Our mechanics make house calls

Q: Serpentine belt constantly slips off

asked by on

The serpentine belt on my 99 ford escort ZX2 constantly slips off. I have to put the belt back on at least 3 times a week. I've recently replaced it with a new belt and it still happens. I notice that every time I start my car, the belt slides off a bit on the tensioner. I'm not sure if the tensioner is misaligned or if it's broken and needs a replacement. Any help would be appreciated. Thanks in advance.

My car has 180000 miles.
My car has an automatic transmission.

A: Hi. Most likely there is something out of a...

Hi. Most likely there is something out of alignment in your pulley system causing the belt to come off. The first thing to inspect would be the idler pulley. Remove the belt and check if the pulley wobbles. If so, the bearing is out and causing the pulley to be out of alignment. If you need to have the fault correctly identified and repaired, a certified professional from YourMechanic can come to your car’s location to inspect the car and follow up with repairs.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: My car started cutting out after driving for a little while?

Hi, thanks for writing in. If the car had been sitting for 9 months, there may be a good chance of it having something as simple as bad fuel or bad spark plugs. I would recommend starting with a basic...

Q: Break fluid leak from transmission

The fluid leaking from the transmission is clutch hydraulic fluid leaking from the clutch slave cylinder. You will need to replace the clutch slave cylinder and then bleed the clutch again.

Q: Serpentine belt broke off twice

Hi. You have two belts, one controls the power steering and AC, the other the alternator and water pump. The only thing that breaks a belt like you described is a seized or binding accessory. With the belts off, each...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
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...