 My fog lights are acting foggy, Like fog, my fog lights don't come on until they get warm. ??? |
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| Mike Bellis |
 Apr 21 2015, 07:52 PM
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#21
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Resident Electrician  Group: Members Posts: 8,345 Joined: 22-June 09 From: Midlothian TX Member No.: 10,496 Region Association: None 
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Most likely the lamp sockets and terminals are corroded. This is commonly called an intermittent open circuit. Bumps and vibration can break through the corrosion just enough to complete the circuit. Sometimes, leaving the power on can "cook" through the corrosion forming a carbon trace that will conduct. This would explain why they will turn on after time has passed. Carbon tracks are most common inside the distributor cap, causing ignition misfires.
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