Hi,

Got a rough running, no idle problem. I am thinking maybe the alternater is bad due to a code 53 (system overvoltage at battery) I am getting. I am going to remove the alt and have it tested at Zone, but just for further data, thought I would ask about the battery light. My owners manual says the light should be on with key on, engine off. But the light does not come on. I am hoping this means the alt is not right, so I can just get a new alt (assuming the test shows it is bad) and make everything cool again.
Would the lack of light mean regulator is bad ? Could a low battery, say, 11.9 volts make the light not come on ?

Thanks


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88 GTA 5.7 TPI Charcoal Grey Bone Stock except for loose muffler which makes it a bit louder than normal.

 

Check your guage lights. I found half of mine to be burned out. Does the light come on ever?. I was trying to check codes on my car and I thought I had the wrong terminals. The obvious took a while to kick in for me.

 

Above post is right. All the gauge lights should come on when the engine is first started. This is so the owner can tell if any lights are burned out.

 

OK, how do I check the bulbs? Do I remove the instrument panel ?

 

Yes.