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Old 09-18-2018, 09:03 AM   #5
StingRay
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Join Date: Mar 2000
Location: Saskatoon,SK,Canada
Posts: 2,476
Re: GMC four headlight issue

My personal experience is that if you are running any wattage higher than stock the circuit breaker in the switch will trip, cool and reset. Sounds like what you have happening.
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