pantera928 Posted September 27, 2022 Report Share Posted September 27, 2022 While driving this evening, I noticed the small red light in the top center of the instrument panel come on. I always thought this was just a choke indicator but then I noticed that the ammeter was reading negative. Well, I got home and checked the charge circuit and sure enough, 11.8 volts. So how does this light come on when the alternator stops charging? Any ideas? Thanks Link to comment Share on other sites More sharing options...
Ron Dame Posted September 27, 2022 Report Share Posted September 27, 2022 I thought that was the high beam indicator. I don't have a working one, and assumed I need to get in there and change the bulb, so I will be interested in finding out what it really is. Link to comment Share on other sites More sharing options...
silverstude Posted September 27, 2022 Report Share Posted September 27, 2022 this may help Link to comment Share on other sites More sharing options...
pantera928 Posted September 27, 2022 Author Report Share Posted September 27, 2022 6 hours ago, Ron Dame said: I thought that was the high beam indicator. I don't have a working one, and assumed I need to get in there and change the bulb, so I will be interested in finding out what it really is. Your high beam indicator should be on your speedometer. It is blue on mine Link to comment Share on other sites More sharing options...
pantera928 Posted September 27, 2022 Author Report Share Posted September 27, 2022 1 hour ago, silverstude said: this may help Great diagram. Much better than what I have. Thanks. Went to my favorite old school alternator and starter rebuilder and I guess after 42 years, the alternator gave up Link to comment Share on other sites More sharing options...
Ron Dame Posted September 28, 2022 Report Share Posted September 28, 2022 18 hours ago, pantera928 said: Your high beam indicator should be on your speedometer. It is blue on mine OK, thanks, I'll need to change the bulb then Link to comment Share on other sites More sharing options...
Murder Posted October 27, 2022 Report Share Posted October 27, 2022 On 9/27/2022 at 7:00 AM, Ron Dame said: I thought that was the high beam indicator. I don't have a working one, and assumed I need to get in there and change the bulb, so I will be interested in finding out what it really is. Also note that the "generator" light bulb must be of the proper resistance. Too little and it will light up at any small difference between the voltage seen from the battery and the voltage seen from the alternator. Link to comment Share on other sites More sharing options...
Swampboy Posted February 11, 2023 Report Share Posted February 11, 2023 I have not completed this repair (illness in family), but this topic from the AOAI forum seems like it's the right solution: 1985 dash light By cdn56J, September 13, 2008 in 1984-91 Avanti Link to comment Share on other sites More sharing options...
mfg Posted February 12, 2023 Report Share Posted February 12, 2023 Replacing the failed alternator will eliminate that small red light...as long as the electric choke relay is OK. Link to comment Share on other sites More sharing options...
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