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Old 04-18-2011, 01:14 PM
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1934 Chevy Head Lights

I have halogen headlights on my 34. All new wiring kit and light switch. When I turn on the headlights, they will stay on for about 30 seconds, after that, they blink on an off. Tail lights and tag lights remain on, If I disconnet one headlamp, the other stays on without blinking. I have checked the voltage at both headlamps and they register 13+. I have replaced the light switch and traced all the wires. I can't understand what is wrong.

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Old 04-18-2011, 01:38 PM
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The amperage draw of the halogen headlamps is over loading the built in circuit breaker of your headlamp switch. You need to run your headlamps from a relay in order to remove the load from your headlamp switch. Search this forum for many posts on the subject.

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Old 04-18-2011, 02:45 PM
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Headlight Relays

I agree. If it's a newer replacement switch it'll have a built in circuit breaker and the power draw on your system is too great. It sounds like the switch is doing its job and the breaker is blowing and resetting.

The link below should give you info and ways to fix it.

This next link is real good reading.

Good luck

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