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Tractor Talk Discussion Forum

OT chevy lumina elec

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creepy

09-04-2005 18:30:18




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i have a 92 chev lumina all of a sudden the dom light and map light fuse want and the headlights button got really warm and now i get no fm radio stations and only 2 am stations whats going on is there a big electrical problem? is my computer going?




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MarkB_MI

09-05-2005 04:36:31




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 Re: OT chevy lumina elec in reply to creepy, 09-04-2005 18:30:18  
Check your voltage. The alternator regulator may have failed; if the voltage goes over 16 volts you're going to have some damage.

However, I think you developed a short circuit in your radio. The dome light fuse may also power the dimmer for the instrument lights. This is usually connected to the radio lighting. A short on this circuit would have overheated the dimmer rheostat making the headlight switch hot.

I wouldn't expect this to happen with a factory radio, but if you've replaced the radio anything is possible.

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Bob/Ont

09-04-2005 21:24:25




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 Re: OT chevy lumina elec in reply to creepy, 09-04-2005 18:30:18  
Check out the charging circuit and load test the battery. I got a bad battery once and it caused the alt to burn out. Then after an exch alt it started acting strange, misfiring and the radio cutting out about 5 miles into a 10 mile drive. Then it would work fine. Did that a few more times then stopped dead at the 5 mile spot, wouldn't crank or anything. It took me an hour and a half to get home and return with booster and tools. Load tested bat and fine????? Jumped in and she cranked and started right up. Drove it home and it was in trouble again. Shut off and it wouldn't crank. Put charger on bat and it blew the reset. Let the bat cool for a while and it charged at 40 Amp without blowing the reset. Left bat and it completely discharged. It took some doing but I got another bat on warranty because after it cooled off for a couple of days it charged up and tested good. The only thing it continually gave radio trouble intermittantly. The new battery never caused any of these problems.
Later Bob

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