Frogger Posted February 16, 2010 Share Posted February 16, 2010 ok i checked the fuse panel. dosnt seem to be roted out from the master cylnder. i replaced all bad fuses. some were just old and falling apart. i have headlights and the gauges work, but when i turn the lights on the gauge lights and the clock light to the right of the gauges go out. every once in a long wile they work for about 30 seconds any sugestions on what to do. Quote Link to comment Share on other sites More sharing options...
Geonovast Posted February 16, 2010 Share Posted February 16, 2010 My money goes on a bad ground in the dash somewhere. Year/motor of your truck would probably help out quite a bit. Quote Link to comment Share on other sites More sharing options...
Frogger Posted February 16, 2010 Author Share Posted February 16, 2010 sorry its a 89 2wd long bed about 260,000 other than a little eletrical like this its in great shape Quote Link to comment Share on other sites More sharing options...
cracker Posted February 16, 2010 Share Posted February 16, 2010 I have the same problem with my 87 :( Quote Link to comment Share on other sites More sharing options...
Dirteatr717 Posted February 16, 2010 Share Posted February 16, 2010 this happens to me sometimes...i just turn the lights off and turn em on again and that little problem goes away somehow :nuts: Quote Link to comment Share on other sites More sharing options...
Frogger Posted February 16, 2010 Author Share Posted February 16, 2010 dosnt work in my case its been out for about a month now il check the ground. would it be coming off the gauges or the harnes on them Quote Link to comment Share on other sites More sharing options...
Eagle Posted February 16, 2010 Share Posted February 16, 2010 The dimmer for the instrument lights is a rheostat built into the headlight switch. It's a contact that slides along a coil of resistance wire. With age, the wire develops dead spots. Probably turning on the headlights also rotates the stem slightly, causing the slider to rest on a dead or dying spot in the resistance coil. Try rotating the headlight switch and see if the lights come back. Quote Link to comment Share on other sites More sharing options...
Geonovast Posted February 16, 2010 Share Posted February 16, 2010 I missed a word in the OP... I thought he meant the gauges themselves went dead, not the lights. :doh: Quote Link to comment Share on other sites More sharing options...
-600JeepMJ Posted February 16, 2010 Share Posted February 16, 2010 :idea: have you guys looked at a electrical manual? viewtopic.php?f=9&t=12734 Quote Link to comment Share on other sites More sharing options...
dasbulliwagen Posted February 16, 2010 Share Posted February 16, 2010 My guess too would be the dimmer in the headlight switch assy itself.... probly need a new switch. Quote Link to comment Share on other sites More sharing options...
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