Q: Q: New battery is being drained

asked by on

I have a 2000 Oldsmobile Alero. We were having issues with our car and was told that the fuel pump, starter, alternator & battery all needed to be replaced. We bought everything brand new, except the alternator which we refurbished. Everything is hooked up correctly. And the car runs. It actually drives a little smoother than before. However our battery light came on which is odd since I had bought it 3 hour prior. I took the car to Autozone. However they could not test anything because the battery was at 16% and to low for their machines. Why is it that the battery is being drained? We can not figure out the issue.

My car has 182000 miles.

This may be a sign of a weak battery, a failing voltage regulator or failing alternator. As you may know, the alternator is responsible for charging the battery while the engine runs by generating amperage and recharging the battery while the engine turns the alternator. The voltage regulator is a unit that regulates the charging of the battery by the alternator and maintaining a certain amperage while the engine runs. When the alternator is not working properly, this may result in the battery quickly losing charge and the car losing all power as you have described. I would recommend having an expert from YourMechanic come to your location to diagnose and repair your charging system.

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. Q: New battery is being drained

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: Q: My car is running hot

I would recommend checking for smoke coming from your exhaust. Since you are not able to find a leak and you are positive that the coolant is not mixing with the oil, it is very likely that your engine is...

Q: chevy silverado 1500 is slow in 1st gear but runs fine in reverse

The transmission has different clutch packs for different gears inside the transmission and you most likely have worn forward clutch packs. I would recommend having the transmission pressures checked and computer codes checked and also fluid checked for burned smell...

Q: engine idles rough and slow after replacing the battery

You will need to re-learn the idle for the vehicle to get it to idle high enough. You should first clean the throttle plates and throttle body and idle control valve. When you disconnected the battery, the idle control was...

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...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...