Skip the auto shop - Our mechanics make house calls

Q: I done replace my alternator and charged my battery but the car keeps going dead what else could the problem be?

asked by on

Turn it on light little dim then it acts if it wants to crank sometimes it cranks sometimes it won't....

My car has 29000 miles.
My car has an automatic transmission.

A: Hello. If the battery keeps going dead, the...

Hello. If the battery keeps going dead, then there is likely something draining the battery. It may be possible that a wire somewhere on the vehicle has shorted to the chassis and is placing a parasitic drain on the battery. With the key off, I would carefully search the entire vehicle for any electrical accessories or lights that remain powered or functional. When the key is removed, all of the components should turn off. However, if the hot wire to any of the electrical components shorts to chassis ground, this may create a circuit that drains the battery. I would start by checking the engine bay, and then move on to checking the interior of the vehicle. If you would like to have this checked for you, a qualified professional from YourMechanic can come to your car's location to diagnose the battery charge problem.

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: My car won't start after cold weather

The most likely cause for this is that the battery went bad, especially if it is more than about three years old. Some cheap batteries are only good for a couple of years. Have the battery and charging system checked...

Q: I can't disconnect my oil coolant lines from under my truck

Hey there. There are a variety of reasons this may happen. Sometimes when the lines are corroded or rusty, the fittings on the end are very difficult to break loose. Try spraying some WD40 on the ends of the fittings...

Q: Starting problems

If the starter is not "energized", that is turning the engine over, you have to first determine if the starter is getting power or if perhaps there is too much resistance in the circuit due to a poor ground or...

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...
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 P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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...