Skip the auto shop - Our mechanics make house calls

Q: Battery light staying on

asked by on

My car starts and runs fine, but the battery light stays on. I am thinking it could be the alternator or serpentine belt.

Hi. This could mean there is a short somewhere connected to your alternator. A mechanic can trace this issue along with any other issues along the way in order to diagnose the cause of your battery light.

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: Can a 2000 dodge caravan fuel injector wiring harness be used on a 1999 Dodge Caravan, engine being a 3.3L 6 cylinder flex fuel.

Hi there, thanks for writing in. To my knowledge, Dodge did not make significant changes from the 99 to 2000 Caravan 3.3 liter engine. However, with that being said, it's hard to know for 100% certainty that the fuel injector...

Q: Should I change my starter?

Hi and thanks for contacting YourMechanic. I see that you tested your battery, good. Along with the battery test make sure that your battery tested good for the cold cranking amps also. Your battery should have at least 690 cold...

Q: Have a 2000 Jeep grand Cherokee Laredo 4.0. The voltage gauge is not working and it spits and sputters while alternator is hooked up.

Hi there. If the alternator is causing the volt gauge on the dash to stop working, then the polarity on the wires is backwards. Check the power wire to the alternator and make sure that its hooking up to the...

Related articles

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...
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.