Skip the auto shop - Our mechanics make house calls

Q: Dead car

asked by on

My battery light came on, car cranks but won't turn over, my battery has a full chage.

My car has 100000 miles.
My car has an automatic transmission.

Your engine needs spark and fuel to start and run. If the vehicle is cranking but will not start, it is probable that either spark or fuel are lacking. Lack of spark and/or fuel can be caused by: lack of signal from the engine control unit, failed ignition module, coil(s), relays, or even a failed fuel pump. If the vehicle does not crank at all and the battery is known to be good, a faulty starter or ignition switch can be the cause. Have a certified technician diagnose the no start condition before randomly replacing parts as that can be more costly if parts are installed and non-returnable.

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: Seized lock cylinder

Hi there, thanks for writing in. First off, you don't need to go to a VW shop or the dealership to have an ignition lock cylinder replaced. As a matter of fact, one of our professional mechanics can complete this...

Q: Transmission problem?

Hi There, This may be a result of low transmission fluid or potentially a faulty transmission control module. A faulty transmission control module may cause a delay in acceleration or erratic shifting of gears. The transmission control module has various...

Q: Cranks great will not fire up - 1992 Mazda 929

The antenna wire should not be connected to anything that would cause the car to not start, especially if it is getting power to crank. I would suggest checking to see if the spark plugs are getting fuel to them....

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...