This one may test you guys to see what we know. I have a 64 tri-power GTO that has a pulse in the lights with the engine running, high or low beam. It's admittedly only a slight pulse, or dimming and brightening, but it'll drive you nuts if you know it's there. I've changed the alternator, regulator, (with new ones), checked the belt for tension, polished all the grounds and their mounting holes, and still can't stop the pulse. No other electrical trouble, starts right up, full batteery all the time, shows 14.5 volts on the volt meter, (aftermarket under dash cluster). Anyone have more ideas as to what can cause this pulse? Thanks for any help.
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02-09-2005, 10:48 PM
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