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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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#92274 07/07/2005 11:03 AM | Joined: Apr 2004 Posts: 84 Member | | Member Joined: Apr 2004 Posts: 84 | Recently, my tail light fuse blew. All other ligths work. Replaced fuse with 25A, lasts about 30 mins. (with truck running). The truck is converted to 12V with all new wiring and headlight switch. What gives? | | |
#92275 07/07/2005 5:47 PM | Joined: May 2001 Posts: 7,438 Extreme Gabster | | Extreme Gabster Joined: May 2001 Posts: 7,438 | You have a bare wire that blows the fuse when it grounds against the frame. | | |
#92276 07/07/2005 7:05 PM | Joined: Jul 2000 Posts: 2,187 Insomniac | | Insomniac Joined: Jul 2000 Posts: 2,187 | I agree with what Cletis said. Have a look near the exhaust system. I had a wire that crossed the exhaust pipe. When the truck warmed up, the wire expanded as it got warm until it shorted out on the pipe.
Gord 🇨🇦
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1954 1/2 ton 235 4 speed
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#92277 07/07/2005 8:13 PM | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | If you have ever wondered why they bothered putting a separate fuse in the design, here is the answer. | | |
#92278 07/08/2005 9:30 AM | Joined: Apr 2004 Posts: 84 Member | | Member Joined: Apr 2004 Posts: 84 | I thought maybe it was the new light switch I put in. Haven't had time to check it. Come to think of it, all the wires to the back of the truck and gas tank junction under the cab near the exhaust pipe. I tied them off to the frame on used piece of garden hose as an insulator. Maybe that's why the new gas gauge is pegged on full with key on. I only get an accurate reading when I turn key off and then on again. But when truck is running, the needle still hides behind the bezel, kind of a driving "peekaboo"! | | |
#92279 07/08/2005 9:40 AM | Joined: Apr 2004 Posts: 84 Member | | Member Joined: Apr 2004 Posts: 84 | I thought maybe it was the new light switch I put in. Haven't had time to check it. Come to think of it, all the wires to the back of the truck and gas tank junction under the cab near the exhaust pipe. I tied them off to the frame on used piece of garden hose as an insulator. Maybe that's why the new gas gauge is pegged on full with key on. I only get an accurate reading when I turn key off and then on again. But when truck is running, the needle still hides behind the bezel, kind of a driving "peekaboo"! | | |
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