1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Lights Dim when I Drive

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Old 12-06-20, 07:27 PM
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Lights Dim when I Drive

Turn signals were out.. I got underneath the dash and slapped around a few things. That seems to have, of only temporarily, fixed the turn signals.

Just took her out for a sunset drive, to verify the lights are fixed.

...they're not.🤬

Headlights popped up together like pros; now neither will go down.

Turn signals are fine, but the cockpit lights and passing/driving lights stopped working.

...or so I thought. I noticed them going on and off. Then, I realized they weren't going on and off, they were dimming in and out.

Every light on that circuit was dimming out every time I excelorated. If I take my foot off the gas (coast) still no lights.

But, when I break, and only when I break...its Christmas;...lights on everywhere. Less break less light; more break brighter lights.

Thoughts?
Old 12-06-20, 08:30 PM
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Belt driving the alternator may be loose. Alternator may be dying. Maybe a short under the dash (any burning smell?).
Old 12-06-20, 08:35 PM
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I did just replace the radiator and water pump.

I'll check the alternator belt. Nice rec.🤙🏾

I'll go back under the dash (damm, I'm too old...), and check those connections, relays and wiring.👍🏾
Old 12-07-20, 12:06 AM
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Use a mirror and flashlight.

Do you have your wheel well liners? is the car lowered?

Front harness could be rubbed through.

Last edited by Redbul; 12-07-20 at 12:07 AM. Reason: added info.
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