GEN light on - Team Camaro Tech
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post #1 of 6 (permalink) Old Dec 17th, 11, 08:54 PM Thread Starter
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GEN light on

I started my 69 Camaro the other day and the GEN light stayed on. When I turned the lights on the gauge indicated discharge (I left the light hooked up when I put gauges in it, so yes it has both). I figured the alternator was going bad. The next day I started it and the light did not come on. I drove it the following day with no problem. Today I went out and it turned over four or five times before there was not enough juice. I put a charger on it and got it started the GEN light flickered and the gauge showed a discharge when I turned the lights on. After the car warmed up and the idle smoothed out the GEN light went off and when I turned the lights on there was no discharge on the gauge. I took the alternator off and had it tested and it showed to be working fine. Any ideas? Voltage regulator maybe? The battery is fairly new,as well.
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post #2 of 6 (permalink) Old Dec 18th, 11, 04:01 AM
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Re: GEN light on

Make sure all your terminals are clean (pos & neg). Have you checked it out using a multi-meter ?

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post #3 of 6 (permalink) Old Dec 18th, 11, 06:36 AM
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Re: GEN light on

Yes as stated above, clean and tighten all cables and check your junction block by the battery and the loop to the Horn Relay and the VR.

Could be the VR starting to fail. Is it mechanical or solid state? Do you have a tool-box spare to swap in? Could be that the VR is not always triggering the Alternator to activate the field to charge the battery. Solid State Wells/Airtex VR's are usually about 12 bucks on-line and the best electrical upgrade you can make. And at half the price of the mechanical you can afford to have a testing spare on-hand.

Next in-line if not the VR it could also be one cell dying in the battery. How old is it? Can you swap it into your daily driver and see if it fails after four or five starts there too? Most modern batteries vent off so much solution when used with long term tenders and deep cycle quick charges that they won't last the 5 year expectation when purchased. So if you use these regularly I would be suspect of the battery's general health.

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post #4 of 6 (permalink) Old Dec 21st, 11, 07:28 AM Thread Starter
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Re: GEN light on

Thanks for the help. I cleaned the terminals and I do have another VR I can put on.
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post #5 of 6 (permalink) Old Dec 21st, 11, 08:20 AM
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Re: GEN light on

It is the battery. O,Reilys has them 2 year free replacement. Unless you drive it a lot thats all you will get. Got me a new one last week, 15 months old.
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post #6 of 6 (permalink) Old Dec 21st, 11, 08:23 AM
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Re: GEN light on

Use the Wells VR715 solid state unit, not another old points style VR. The original cover will even fit over it. Jim..former owner of a 69RS-LM1 350/255 - 700r
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