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I have older style headlight switch (12 volts) in a hotrod. After the lights have been on for more than 40 minutes they go off , headlights, dash and tail lights, but after 5 minutes they come back on again. It is worse in the summer time.

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Could be overheating. How many watts is going through the switch? What is it's rating. Check for ventilation / clearance around the switch for cooling. Also is the wiring correct gauge? Too small will cause overheating of the switch too.

Posted on Nov 25, 2013

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Posted on Jan 02, 2017

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SOURCE: No headlights, or dash lights.

check the ground cable at the battery , youll see a break in the ground wire at the battery box, check to make sure the bolt is tight and not corroded (the break is the ground for most of the lighting )

Posted on Aug 25, 2008

  • 66 Answers

SOURCE: Tail lights won't work when headlights are on.

head light switch is bad

Posted on Dec 18, 2008

  • 125 Answers

SOURCE: headlights work but dash and tail lights dnt

look for the relay for the parking light

Posted on Apr 30, 2009

  • 1 Answer

SOURCE: '91 Subaru: dash & running lights won't turn on with headlights

This is a problewm I have been researching. On the 91 Loyale there are two headlight relays. The relay for the left headlight also controls the instrument lights and the running lights. If the right relay is working and the left is not, the left headlight will be dim because of a back electrical path through the high beam indicator light on the dash, but the instrument and running lights will be out. I have been trying to find out where Subaru put these relays, but three Subaru service departments have been no help. One dealer's service department told me to remove the large bezel around the instrument panel. I did and the relays weren't there. Lots of luck.
John

Posted on Aug 19, 2009

harley9701ha
  • 424 Answers

SOURCE: i have 98 eddie bauer ford explorer with headlight problems

The headlamp switch will cause the lamps to turn off. The switch heats up and turns the headlamps off. It will cool down and work for about 10 minutes and cut out,

Posted on Oct 08, 2009

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Check out related help links with solutions to troubleshoot these problem.
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