Skip the auto shop - Our mechanics make house calls

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?

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
  • Home
  • Questions
  • 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: So I recently left my 2010 Dodge Charger with out oil and it started a tapping noise inside the motor.

Hi there. When operating an engine without any oil in the oil sump (oil pan), then the bearings, rings, valves, and lifters will starve of lubrication and begin to tap and knock. The lifters were closed up causing the valves...

Q: Anti-theft preventing car from starting

Hello. The first thing I would do is try to reset or disable the anti-theft system. This can be done by locking the doors with the power lock, and closing all the doors and the trunk. Then you wait 30...

Q: Alternator won't charge battery

As a colleague of mine used to say, "everything works, but the hands don't move," He used that expression when he had checked everything on a certain system and found it to be working correctly, but the system was still...

Related articles

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...