Gen and dash light problem - Team Camaro Tech
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post #1 of 4 (permalink) Old Feb 4th, 11, 04:07 PM Thread Starter
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chris
 
Join Date: Nov 2009
Location: norcal
Posts: 76
Gen and dash light problem

Hi, not sure if this belongs here or in trouble shooting. I had to pull my steering wheel on my 68 to tighten up a loose turn signal lever, put it back together and went for a short cruise. while I was out it got a little dark so I turned my headlights on. everything came on except the gauge cluster (speedo and fuel). dome light, high beam indicator, everything. So I get home and turn off the key and the Gen light stays lit up, It also stays on when I remove the key from the ignition? the only time it goes off is when the ca is running or I disconnect the battery. I'm stumpped. I would appriciate any help with this. thank you.

chris
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post #2 of 4 (permalink) Old Feb 4th, 11, 08:07 PM
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Steve
 
Join Date: Jun 2005
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Re: gen and dash light problem

Internal or external voltage reg?
What voltage is the alternator putting out at ~2000rpm?
Wondering if the reg has somehow failed. On an external reg with electronic ignition, a diode needs to be fitted to stop back-feeding which illuminates the gen lamp.. Could a reg failure cause your symptoms..?
Checked the fuses?

Nov 68 Van Nuys. 327 floor-shift-auto, Frost Green and not much else when new.

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post #3 of 4 (permalink) Old Feb 4th, 11, 08:24 PM Thread Starter
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chris
 
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Location: norcal
Posts: 76
Re: gen and dash light problem

Quote:
Originally Posted by BlackoutSteve View Post
Internal or external voltage reg?
What voltage is the alternator putting out at ~2000rpm?
Wondering if the reg has somehow failed. On an external reg with electronic ignition, a diode needs to be fitted to stop back-feeding which illuminates the gen lamp.. Could a reg failure cause your symptoms..?
Checked the fuses?
Steve,
thanks for the reply, checked all the fuses and they were good. One thing I forgot in the first post was right before I got home the headlights blinked on an off one time. could this be caused by the volt reg as you were thinking. what would cause the gen light to come on when the key is off and out of the ignition?

chris
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post #4 of 4 (permalink) Old Feb 4th, 11, 10:31 PM
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Steve
 
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Re: gen and dash light problem

I forget the details.. Pretty sure MSD and/or MAD Electrical have info on their websites. Although it maybe more of a running-on issue than a Gen light issue.. Have a look anyway.
The gen light is fed from the voltage reg. If the reg has failed, I would assume there is up to 16Volts going into your electrical system.
What voltage do you have at ~2000rpm? This may be a clue.

Nov 68 Van Nuys. 327 floor-shift-auto, Frost Green and not much else when new.

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