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Odd symptoms? At idle, my radio kind of fades in an out rapidly and with the lights on the dashboard lights dim and brighten to the same rhythm. I've reported this problem before and I tightened the alternator belt, and replaced the voltage regulator--albeit with an older one. After the replacement VR, the dash lights seemed to be brighter under throttle but still blink a little at idle. All the connections seem to be tight and it is only noticeable at idle.

What should I check next--Alternator?

Thanks.

J. Boggs


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Bad ground? Do the headlightsdo the same thing ?? I know on a 70 there are seperate grounds for the dash.

70 SCJ R-CODE MACH 1
88 GT
 
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Put a voltmeter on anythign that is dimming and see what it reads. It is typical for the alternator to make a little more voltage running than at idle, but even at idle it should make 13-14 volts.
 
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