Mechanics

CHARGING SYSTEM MALFUNCTION

1998 Chevrolet Cavalier • 225,000 miles

When I start my car and turn on some of my acessories (lights, radio etc) the car will start to lose power. When I turn everything off it will keep running. But when I keep it running for a few minutes with all acessories off the entire dashboard stops working ( speedometer, rpm gauge, temp gauge etc including my running lights, signal lights) then when I turn my headlights on and off the dashboard fickers. But the strangest part is, is that I can still drive it, none of my lights work but it will keep running until I turn it off then it won't start back up again. Its very strange, I tried changing the alternator and battery but apparently that wasn't the problem. I hope you understand what I'm talking about.
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Tjsk8boardz
April 5, 2012.




Any electrical related modifications to stock wiring/accesories? When did this start happening?

Tiny
Fixitmr
Apr 5, 2012.
Just recently, I also forgot to mention that when I boost the car and leave the jumper cables on the car is fine everything works
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Tiny
Tjsk8boardz
Apr 5, 2012.
How do you restart it?

Tiny
Fixitmr
Apr 5, 2012.
It will start a few times after the boost but then the battery is dead then I boost it again

Tiny
Tjsk8boardz
Apr 5, 2012.
Test voltage at battery when car is running with things off and then on.

Tiny
Fixitmr
Apr 7, 2012.
Voltage at battery with things off was 5.2 volts, but when I turned my headlighjts on the car shut off.

Tiny
Tjsk8boardz
Apr 7, 2012.
You mean 15.2? Car wont start with 5.2

Tiny
Fixitmr
Apr 7, 2012.
I boosted it and measured the voltage while it was running without the jumper cables on and it was 5.2 volts

Tiny
Tjsk8boardz
Apr 7, 2012.
Then after the car shut off I measured it again and it was at 7.9 volts

Tiny
Tjsk8boardz
Apr 7, 2012.
Dont make sense. Is it a new battery?

Tiny
Fixitmr
Apr 9, 2012.

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