Q: Serpentine belt broke, replaced it but lost AC. It broke again 2 days later

asked by on

The serpentine belt broke and I lost both my power steering and my AC which is normal. After replacing it though, I only regained the power steering even though the belt was definitely engaging the AC. I drove it without AC for a couple of days until this morning I could smell a burnt rubber smell while driving and the belt broke again. Is the AC not working causing my belt to brake? How should I go about fixing the problem? Thanks a lot.

My car has 202000 miles.
My car has an automatic transmission.

It would’ve been helpful to know if the A/C was working fine or having a problem when the first belt broke. I suspect that the A/C pulley is binding, causing the second and first belt to break. If the A/C was working good right up to the first belt breaking then the first belt may have gotten caught up in the A/C pulley and clutch. This would cause the lack of A/C engagement and pulley to bind. Either way it may be caused by the A/C compressor.

The clutch and pulley should be inspected to see if they are faulty or if the old belt was binding it. I’d suggest getting the A/C inspected by a qualified mechanic, such as one from YourMechanic. Once on site, a mechanic will be able to diagnose the symptoms you’ve described and help you make the necessary repairs.

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 broke, replaced it but lost AC. It broke again 2 days later

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: A/C problem on 06 Mitsubishi Lancer ES

If you are getting power to the compressor but the compressor clutch is not engaging then you may have a bad clutch coil. Sometimes the clutch coil will get weak and not be able to engage the clutch when it...

Q: Q: Getting horrible gas mileage.

When you say you are getting horrible gas mileage, you do not specify how bad. If another shop says it is running ok then it may be OK. If you are getting a drop of more than 2 to 3...

Q: Rattling from AC when idling

The rattling may be from the AC compressor pulley or tensioner for the belt. The tensioner is the most common problem, but the spring may be too weak causing vibrations and rattles. I recommend seeking a mechanic, such as one...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
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...