1997 Chevrolet Silverado Tail lights

1997 CHEVROLET SILVERADO
230,000 MILES • 5.7L • V8 • 4WD • AUTOMATIC
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CHEVYTRUCKK
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  • 6 POSTS
I'm having problems with my taillights. When the truck is on the tail lights don't work. But my brake lights and reverse lights work. I don't think the bulbs are out. Fuse?? Wiring problem?? Could someone tell me what it could be. And where to look and how to fix it.
Aug 13, 2015 at 2:07 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
always check the bulbs first as the filament can be burned out then check for ashort or see if power is coming to lights. check fuse 9 as well it's the brown wire to taillights.
Aug 13, 2015 at 2:34 AM
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CHEVYTRUCKK
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Wouldn't the lights be browned or look burnt?
Aug 13, 2015 at 4:21 AM
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HMAC300
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yes and usually the filament is gone.
Aug 13, 2015 at 4:23 AM
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CHEVYTRUCKK
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Then the bulbs aren't bad. They look fine
Aug 13, 2015 at 4:25 AM
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CHEVYTRUCKK
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Could it be a loose ground wire? Looking underneath the truck I saw A black wire hanging. I'm guessing it's a ground wire. Don't know where it goes. It's just hanging. Would that make the running lights not work but still the brake lights?
Aug 13, 2015 at 4:30 AM
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CHEVYTRUCKK
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Also my dashboard lights are giving me trouble. All interior lights work fine on the switch. But the lights for the gauges and speedometer and all that will work sometimes. Every now and then they would come on. But mostly they don't work. Any idea there?
Aug 13, 2015 at 4:41 AM
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HMAC300
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  • 48,601 POSTS
check fuses as well I thought I put it in last reply check in car and under hood. the black wire attaches to frame and may be your problem try to reattach it as well
Aug 13, 2015 at 6:48 AM
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CHEVYTRUCKK
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Nothing is working.. Need a wiring schematic to follow all the wires
Aug 13, 2015 at 12:21 PM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
see pic there is s circuit board on back frame that may be bad as well that hs a few plug ins so check to see if power is coming in from front it may not be going out of it. it is not shown in pic.
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Aug 14, 2015 at 1:40 AM
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