Skip the auto shop - Our mechanics make house calls

Q: Replaced alternator and battery in car that isn't holding power.

asked by on

Car is not holding power. I just replaced the battery and alternator. What's wrong with my car?

Its sounds like you could have a parasitic drain on your battery. You would need to have a technician trace where it is coming from. A common problem is with interior lighting in the car. There may be a shorted wire from the trunk light or a glove box light may be staying on.

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

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: How do you tell if the Personal Safety System™ is working?

The Personal Safety System™ is your car is designed to protect you and your passengers during impacts while on the road. Of course, you want to make sure that the system’s operational at all times. Here’s what you should know:...

Q: Truck jerks trying to change gear around 45mph

This may be a sign of a dirty or failing mass air flow sensor. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed with fuel prior to being injected...

Q: Car won't turnover

First we have to determine if the engine is cranking and not starting, or soley not cranking. Do you see the motor spinning (look at the drive belt) when someone is turning the key to “start”. If it is cranking...

Related articles

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...
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...
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.