Q: We changed the alternator and battery and it ran for 24 hours and now it's doing the same thing and will run for 2 mins and die

asked by on

Our car was dying , head lights went out stereo went out so husband changed the alternator and it wasent that so he changed the battery and it started right up ran for alittle over a day and now it's doing it again , we just bought this car a week ago . Only thing we can think of is maybe a wiring problem maybe , husband thinks maybe in the stereo because there was a performance stereo and they put the stock back in it and now when it was running even when you turned the car off the stereo wouldn't turn off we would have to manually turn the stereo off . He is stumped and don't know what else it could be

My car has 166000 miles.
My car has an automatic transmission.

Hello, and thank you for writing in. The vehicle may be having issues with the wiring, or it may be an issue with the replacement starter. Start by checking the condition of the starter cables, the battery’s ground connection, and the connection to the alternator. While the stereo may be part of the problem, by reinstalling the old stereo you may have created an extra issue. Concentrate on the charging system first. Then worry about the radio later. Also make sure the replacement alternator is checked to confirm it’s still working. While it does not happen often, the replacement parts can fail, especially when they are remanufactured. For more help resolving the issue, contact the service department to schedule an appointment.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. We changed the alternator and battery and it ran for 24 hours and now it's doing the same thing and will run for 2 mins and die

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: Speedometer speed display problem, possible skipping

You will need to take it to the dealer for them to flash the engine control module (ECM) per technical bulletin 18-001-08. A reprogram is needed to correct the ECM programming for the proper cluster speed readings. You have to...

Q: Car stalling every few days and needs jump. Brand new battery and EGR valve.

Hello, being that the power door locks are controlled by the body control module, a scanner needs to be connected to see if there are any codes present. Also, with a scanner connected, there might be inputs that can be...

Q: Problem with battery discharging over a couple of hours. Alternator getting hot while running very quickly.

This may be related to a voltage regulator malfunction. This is the resister on the passenger fender well that you are referring to. This is a device that monitors the charging system to be sure the battery is charged at...

Related articles

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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
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.