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headlight drain

589 Views 2 Replies 3 Participants Last post by  pmullaly
have any of you had any problems with your headlights draining too many volts out of the battery? it seems that my voltmeter drops almost 2 volts when i turn the headlights on. i have already had the battery drain so that i couldn't crank the engine. i've put a new battery in, but the headlights still drain the same. if any of you have any possible solutions besides testing every wire, i'd be very happy to hear them. thank you
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Several years ago Car Craft had a article about running the headlight circut thru a relay. These older GM's had a problem of melting the wiring under the dash mainly due to the current thats routed thru them for the starter and headlight circuits.
Check your headlight switch for excessive resistance that could be the cause of your drop

Philip Mullaly
72 TPI El Camino
You can never fix a Ford,You can only work on them alot.
70 442
The Z-meano
Cowl induction injection
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