Skip the auto shop - Our mechanics make house calls

Q: my battery light stays on

asked by on

I changed the battery and alternator and the battery light has stayed on and the temp gauge goes up and down what else could be the problem thanks

My car has 99485 miles.
My car has an automatic transmission.

A: You need to check to make sure the large po...

You need to check to make sure the large power wire to the alternator is getting power. If it is not then you may have to check the wire from alternator to the battery fuse box for burned out wires and main fuse links. Also check fuse 2 a 30amp in engine compartment and fuse 15 a 10amp fuse in the passenger compartment fuse panel.

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・Save up to 30%

Get a quote

What others are asking

Q: Key switch not working

The ignition systems on these cars are equipped with the PATS system; if the anti-theft system sees the key as not programed, then the vehicle will not start. Look to see if the Anti-Theft Light is illuminated. If it is,...

Q: Car stopped on highway

Hi. It sounds as though the alternator has failed. The battery is basically just a storage device that must be charged by the alternator. Without a properly operating alternator, the battery will quickly become discharged and the vehicle will no...

Q: A wrench-shaped warning light showed up on my car

You may want to have faults read out of the powertrain control module. The wrench light generally means a transmission fault. If it does not come back it may not be a cause for alarm. However, if it lights up...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
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.