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| Headlights stay in up/open positions (Page 1/1) |
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svocal
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OCT 31, 11:53 PM
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Hi Guys
Need your help one more time. My 85 headlights are stuck/stay in the up/open position. However I am able to turn the headlights off and on, but in either case they stay in the up position.
btw...the dash/parking/running light are out too.
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Gall757
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NOV 01, 09:20 AM
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The only wiring common to both headlight motors is the ground. Maybe you lost that.
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Dennis LaGrua
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NOV 01, 07:46 PM
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Sounds like a power problem or the isolation relay may be burned out. Test the motors by applying power directly and go from there.
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fierofool
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NOV 02, 07:52 AM
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I have had issues with lights going up or down and it was caused by the light switch, but as Dennis points out, an isolation switch can also be the cause.
Be careful when applying power directly to the motor. I have blown limiter switches by doing that. Limiter switches are very hard to come by.
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Gall757
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NOV 02, 08:44 AM
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| quote | Originally posted by fierofool:
I have had issues with lights going up or down and it was caused by the light switch, |
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The switch is a likely suspect. Over time, the metal tabs inside bend and loose contact. It's easy to bend them back if you work carefully.
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fierofool
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NOV 13, 10:25 AM
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Did you get your problem solved?
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Dennis LaGrua
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NOV 13, 06:10 PM
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| quote | Originally posted by fierofool:
I have had issues with lights going up or down and it was caused by the light switch, but as Dennis points out, an isolation switch can also be the cause.
Be careful when applying power directly to the motor. I have blown limiter switches by doing that. Limiter switches are very hard to come by. |
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If its not the light switch (good suggestion to check) I believe that exercising caution when applying power directly to the motors is best but I would only do it while the leads are disconnected from the relays and on the bench. Perhaps apply just enough duration of 12V power to move the motors a little each way. If you go too far the Gen 1 motors have a circuit breaker on the limit switches (the little glass bulb thingy) so in theory it should be a safe procedure. ------------------
" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Northstar TB, LS1 MAF, 3" Spintech/Hedman Exhaust, P-log Manifold, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, Champion Radiator, S10 Brake Booster, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "
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