headlights but no other lights?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

red rumbler · 10-17-2011, 04:31 PM

hey i have a 79 c 10 and the other day i was under the dash and my shoulder bumped 2 random black wires together ( both had metal crimped connectors on them ) it was behind the glove box. anyways now i have head lights, blinkers and brake lights but no interior lights or running tail lights or license plate lights?? i just got a new switch didnt fix it and checked for blown fuses and none were blown any ideas?

THE "10" SILVERADO · 10-17-2011, 06:39 PM

I'm not an expert on wiring, well actually I don't know much about it but I'm pretty sure black wires are grounds. I do know that without certain grounds your truck can pretty much go crazy with a mind of it's own so I would check your grounds first.

DBLSPRT68 · 10-17-2011, 09:56 PM

Back when I was in high school with my first car, I pulled the dash cluster out to change out the old burned out bulbs. When I put it all back together and turned on the lights, all I had was headlights............. Turns out after much anguish, it was just a blown fuse . I would check all of those, and check your grounds as mentioned.

379redneck · 10-17-2011, 11:35 PM

Check the wires you bumped. They might not have been crimped good and could have come loose when you hit them

10-17-2011, 04:31 PM	#1
red rumbler Registered User Join Date: Oct 2009 Location: stouffville ontario Posts: 166	headlights but no other lights?? hey i have a 79 c 10 and the other day i was under the dash and my shoulder bumped 2 random black wires together ( both had metal crimped connectors on them ) it was behind the glove box. anyways now i have head lights, blinkers and brake lights but no interior lights or running tail lights or license plate lights?? i just got a new switch didnt fix it and checked for blown fuses and none were blown any ideas?

10-17-2011, 06:39 PM	#2
THE "10" SILVERADO Registered User Join Date: Sep 2010 Location: Marble Falls, TX Posts: 1,575	Re: headlights but no other lights?? I'm not an expert on wiring, well actually I don't know much about it but I'm pretty sure black wires are grounds. I do know that without certain grounds your truck can pretty much go crazy with a mind of it's own so I would check your grounds first. __________________ Michael Re-starting the neglected '77...http://67-72chevytrucks.com/vboard/s...=425464&page=9

10-17-2011, 09:56 PM	#3
DBLSPRT68 Registered User Join Date: Nov 2000 Location: Ft. Mill, SC USA Posts: 931	Re: headlights but no other lights?? Back when I was in high school with my first car, I pulled the dash cluster out to change out the old burned out bulbs. When I put it all back together and turned on the lights, all I had was headlights............. Turns out after much anguish, it was just a blown fuse . I would check all of those, and check your grounds as mentioned. __________________ PROJECT TRUCK: 1985 SWB C10 Silverado Black/Charcoal, 1990 V2500 Suburban, 2018 Suburban, 2005 GMC 2500HD CCSB, 2014 Toyota Camry SE, HAD.....1968 Camaro RS/SS Family owned since new; 350 3 speed SOLD

10-17-2011, 11:35 PM	#4
379redneck Registered User Join Date: Sep 2010 Location: Kingston, PA Posts: 394	Re: headlights but no other lights?? Check the wires you bumped. They might not have been crimped good and could have come loose when you hit them __________________ 87 GMC Sierra 2500 4x4 350/TH350/NP203 Flow Tech long tube headers, throttle body spacer, Edelbrock Performer cam, true dual Flowmaster 40s, 6 inch Superlift suspension lift 2000 silverado extended cab stepside 5.3l. Stock for now



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