Battery draining

Asked by GuruZ23CW Nov 26, 2017 at 08:01 PM about the 1997 Pontiac Firebird Base

Question type: Maintenance & Repair

I have a 1997 Pontiac Firebird 3.8 when I accelerate
the car the battery tends to drain when I stop
accelerating the battery goes back to normal any
ideas of what it could be???

1 Answer
85

redrocketz28 answered 6 years ago

Could be an intermittant ground fault in the ignition circuit, but most likely the voltage regulator went out in your alternator. Check the voltage with a meter while someone revs the engine slightly say 3000 rpm. watch what the voltage does. if it goes up beyond 14 volts or below 12.5 volts, you need a new alternator.

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