Skip the auto shop - Our mechanics make house calls

Q: Headlights turn on and ac but dont start up.

asked by on

AC and headlights work fine so the battery works good but the engine won't start up it dosen't make any noise whatsoever . Just recently the stereo stop working also and I already tried power starting the battery and it still don't start up I also change my other car batter to the Mitsubishi and nothing .

My car has 181000 miles.
My car has an automatic transmission.

A: If the starter is not operating at all, you...

If the starter is not operating at all, you have an electrical problem. A certified technician, like one from YourMechanic, would first check to see if power is getting to the starter motor and if the ground is good (e.g., ground strap between engine and battery). If the starter motor is getting 12.5 volts and no excessive voltage drop under load, then there is probably a fault in the starter motor or solenoid. If there is no power to the starter motor, there are a variety of things to check in the starter circuit including ignition switch, relay(s), fuses, and wiring.

Was this answer helpful?
Recommended services
Get a Quote

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: Check engine light for EGR valve

Hi there, thanks for writing in. Typically when a problem is recognized by the on board computer (ECM), an error code will be triggered that illuminates the check engine light initially. However, this error code is also stored in the...

Q: Where is my crankshaft position sensor on my 2001 Mitsubishi Montero

Hello. The crankshaft position sensor on your engine is located right above the front of the crankshaft behind the timing cover. The cover will have the be removed in order to replace it. If you need some help with this,...

Q: Car won't start

Hello, thank you for writing in. With so many different systems seemingly giving you issues, it is easy to confuse. Pontiac has a kill switch so to speak that will cut engine power and limit it to preserve the car....

Related articles

How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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.