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・Fair and transparent pricing

Get a quote

What others are asking

Q: Car won't start, then starts, then quits again

Hello. It sounds more like a battery not accepting a charge for your 2009 Kia Rondo. Generally an alternator will illuminate the battery light in the dash to indicate no charging occurring, but a mechanic should be able to verify...

Q: Alternator or Battery is not Charging

The first thing is that disconnecting the battery cable when the engine is running can damage the alternator and computer modules on the vehicle. This will cause voltage spikes that will burn electrical circuits out. With the description of the...

Q: Hesitates when accelerating

Hello. This can be caused by the catalytic converter, but that is not too common with this symptom. If there is a hopping feeling, which is similar to a misfire, then most of the time this is caused 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...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...