Q: my alternator belt keeps breaking what could cause this

asked by on

My alternator belt has snapped 3 times This last time it started smoking when i started it and when i looked the belt was broken.

My car has 100000 miles.
My car has an automatic transmission.

Hi Paula. Thanks for contacting us today. 95% of the time, frequent alternator or serpentine belt breakage is caused by either faulty pulley’s or misaligned or un-properly adjusted belts. Belts that are not properly adjusted to tightness can also explain the smoke issue. I would recommend having a different mechanic complete this job, replace all pulley’s and any tensioners as well.

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. my alternator belt keeps breaking what could cause this

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: What does code P2004 mean?

Diagnostic trouble code P2004 signifies a problem with a segment of the engine's air intake and control system, technically known as the intake manifold runner control (IMRC). In practical terms, the code means that the engine is not getting the...

Q: A/C stopped working

I would suggest checking the flap vents inside your vehicle's air conditioning ducts. These vents open and close the direction of air flow. If the rear vents are working correctly, then it is likely not the A/C compressor or blower...

Q: I have a Mitsubishi Diamante 2000 LS with 197,450 miles and I'm not sure if my transmission blew or if it's something else.

I would not suspect the transmission is bad just from hitting a bump. It is most likely a wire connection came loose or something else minor. You will need to have the car checked to see what happened by a...

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...
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...
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.