Dimming headlights

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Marcel 1969
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Dimming headlights

Post by Marcel 1969 »

Hi Guys and Gals, my 69 camper special has recently developed a bad habit. After ten or so seconds of turning the headlight on I hear a click and the lights dim and then go to normal, ten seconds or so later it repeats, goes on over and over. Happens in low and high beam operation. You folks know a cure? Thanks for the help
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Ranchero50
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Re: Dimming headlights

Post by Ranchero50 »

You most likely have a resistance problem causing the current breaker to trip. Feel for hot spots in the wiring between the headlight to the high low dimmer to the lamps. Most likely it's in the dimmer.
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pcmdub
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Re: Dimming headlights

Post by pcmdub »

Sounds like something drawing current in your system or the Alternator clutch engaging and unengaging.

You may need a new battery soon or you may need a larger alternator. Hard to say without an Ammeter and Voltage gauge.
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1972hiboy
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Re: Dimming headlights

Post by 1972hiboy »

Ranchero50 wrote:You most likely have a resistance problem causing the current breaker to trip. Feel for hot spots in the wiring between the headlight to the high low dimmer to the lamps. Most likely it's in the dimmer.
:yt:
that's where I would start
Rich
1973 f350 super c/s 460/c6 22k orig miles
1972 f350 srw crewcab special 390
1972 f250 4x4 sport custom 390fe Red
1972 f250 4x4 custom 360 FE " Ranger Ric"
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