Skip the auto shop - Our mechanics make house calls

Q: Serpentine belt came off.

asked by on

I'm pretty sure its the serpentine belt and possibly even the water pump. The belt has come off, but it isn't broken. The car started losing power. First, the battery light came on and the lights dimmed. Then the airbag light came on, the gauges went crazy, and the lights dimmed even more. The car then started running rough before shutting off. Now, the car won't start.

It sounds like you may have a broken serpentine belt or a idler pulley that may have caused the belt to fall off. I would suggest that you get a mechanic, such as one from YourMechanic, to check all the idler pulleys and verify they are good and if not replace them with the serpentine belt. The water pump is turned by the timing belt. This belt should be replaced every 100,000 miles and you should also look to replace your water pump, too. If the water pump is bad normally they will start leaking water. You will see water dripping in front of the motor on the passenger side when it starts to fail.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: I am being told my water pump is bad in my 2002 Sequoia. My car's temp gauge was maxed out and in the red. I am also being told

Yes this is correct. The timing belt needs to come off to replace the water pump to prevent coolant from leaking into the timing belt rubber which will cause it to fail. If you would like more information on timing...

Q: Changed the water pump and timing belt now it doesn't want to start

You may have got the timing belt installed wrong. Did you align all the timing marks before you removed old belt so you can get the new belt back on correctly? You should do a compression test and you will...

Q: High idle after replacing fuel pump tps and air idle control valve

The first thing to do is to verify there are no vacuum leaks in the engine and verify the installation of the parts. Once this is done then disconnect the battery and then let sit for two minutes and reconnect...

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...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...