Skip the auto shop - Our mechanics make house calls

Q: Car keeps dying & wont turn on once turned off. Alternator was tested & it's fine.What else could it be? A new battery was also bought.

asked by on

My car died on me while i was driving home. I took the battery out and took it to autozone to have it charged. Once it was charged i took it back to my car amd my car started up perfectly. I immediatly drove back to autozone to have my car tested. Battery turned out faulty but everything else was fine. I got my battery replaced with a brans new one. And 3 hours later my car died on me again, as im driving home. My new battery is drained. What could be causing that?

My car has 2460000 miles.
My car has an automatic transmission.

Hi, it sound like you have a ground to chassis issue. What this does is complete a circuit and will slowly drain your battery.

A couple of quick and easy checks is look at your black negative battery cable and check for corrosion. Secondly, check for loose connection on the battery cables and wire harness. Electrical issues are a process of elimination to isolate the issue.

To avoid any unnecessary repairs, YourMechanic can send a certified technician to you and troubleshoot this issue with your battery and perform any necessary repairs. Best of luck.

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!
  1. Home
  2. Questions
  3. Car keeps dying & wont turn on once turned off. Alternator was tested & it's fine.What else could it be? A new battery was also bought.

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: Battery draining constantly.

The first thing to do is to make sure that your friend did not leave any bare wires that are touching ground and shorting out. If the wiring is ok then the problem may just be that it started to...

Q: Advice on using a 1.5-amp battery charger maintainer

If you want to use that maintainer, I say use it once a month and keep it plugged in for 12 hours. Car batteries are not made to sit. They are made to be charged up and discharged when you...

Q: When my car is at idle in park or neutral the Intake Air Control Valve fluctuates, causing the RPM's to do the same.

Hi there. It sounds as though the idle air control valve (IAC) may be sticking. It is not uncommon for carbon to build up in the valve, the computer will try to overcompensate to correct the slow reaction inside the...

Related articles

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...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.