We run about 80% off highway, we found when the rubber access covers would fall away dirt/ rocks/ mud/snow/ would build up around the connectors on the back side of the bulb and we would lose low beam. We confirmed it by accident bench testing one. Still don’t know why the tech hooked both powers up to the battery, maybe he thought it would be double bright. But I’m one snap the $200 bulb was a paperweight!!
Kenworth 07 T600 No turn signals????
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Chickentrucker20, Nov 8, 2018.
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