Q: Will alternator or starter make car .it started this when i turn my ac on

asked by on

The battery service light came on when i turn AC on then go dead

My car has 13355 miles.
My car has an automatic transmission.

A: If the <a href='https://www.yourmechanic.co...

If the alternator has failed, the vehicle will run until the battery dies as the alternator is responsible for maintaining the charge on the alternator.

The battery light illuminating on the dashboard is usually the tell tale sign that the alternator or alternator fuse has experienced a malfunction. If the vehicle cranks and starts while hooked to jumper cables, you can probably rule out the starter. I'd suggest having one of our mobile experts come and test the electrical system.

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: Car won't start

There are a lot of reason why your vehicle won't start. The battery could be dead, not powering up the starter, which is needed in order to start the car. There also could be a lack of fuel from a...

Q: Car running hot - 2006 Cadillac CTS

Hello. This can be caused by a few different things. Most of the time, this is caused by a restricted radiator or a water pump that is getting weak. It can also be caused by a head gasket that has...

Q: Electrical system issues

You may be having wiring harness issues that would have to be isolated and traced for each problem you are having. The door locks could be a wiring or a lock actuator issue. These are probably random unrelated issues that...

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...
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...
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.