Gauge Problems - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Mike_G · 03-28-2002, 12:34 PM

I have two problems with my gauges. First of all the gas gauge only works when it feels like it. It will work perfectly for two or three days, but then it will just fall to the right and lay there. There doesn't seem to be any connection between when it decides to work and when it doesn't. Second, my gauges don't light up when I turn on the headlights. The headlights work and the dimmer switch and the gauges themselves work (with the exception of the finicky gas gauge). I haven't pulled the gauges yet, but what should I look for first as a cause and could the gas gauge and the lights be related?
-Mike

TC70C10 · 03-28-2002, 01:21 PM

Sounds like a ground problem to me. I've seen alot of dash's that are rusted. Pull the dash and check the area where the back panel mates to the front panel.
Also, I had to run a ground wire from the back of my gas gauge to get it to work correctly. The dash lights could be the wiring harness mates to the circuit card on the back of the dash.

70c10 · 03-28-2002, 01:22 PM

Hey Mike,
Start checking the the push-in bulbs one by one. I need to do the same thing this weekend.

03-28-2002, 12:34 PM	#1
Mike_G Registered User Join Date: Dec 2001 Location: Copperas Cove, TX, USA Posts: 25	Gauge Problems I have two problems with my gauges. First of all the gas gauge only works when it feels like it. It will work perfectly for two or three days, but then it will just fall to the right and lay there. There doesn't seem to be any connection between when it decides to work and when it doesn't. Second, my gauges don't light up when I turn on the headlights. The headlights work and the dimmer switch and the gauges themselves work (with the exception of the finicky gas gauge). I haven't pulled the gauges yet, but what should I look for first as a cause and could the gas gauge and the lights be related? -Mike __________________ Still looking for that perfect project. Anyone?

03-28-2002, 01:21 PM	#2
TC70C10 Registered User Join Date: Nov 2001 Location: Harvest, AL 35749 Posts: 337	Sounds like a ground problem to me. I've seen alot of dash's that are rusted. Pull the dash and check the area where the back panel mates to the front panel. Also, I had to run a ground wire from the back of my gas gauge to get it to work correctly. The dash lights could be the wiring harness mates to the circuit card on the back of the dash. __________________ 1981 K5 Blazer 305, 4spd, 4x4, 4" Lift, custom bumpers, Warn 9.5 Ti Winch 1995 T10 Blazer 4.3L 4x4 (Son's) 2004 GMC Envoy 4.2L 2WD 2005 GMC Sierra Crew Cab Z71 4x4 5.3L 240 Fun Finder Travel Trailer Harvest, AL 35749

03-28-2002, 01:22 PM	#3
70c10 67-72 Addict! Join Date: Feb 2002 Location: The TAX State! Posts: 7,856	Hey Mike, Start checking the the push-in bulbs one by one. I need to do the same thing this weekend. __________________ Jim 1970 C/10 Fleetside w/Ghost Flames Lowered 4.5" front and 4" rear (Raked) 355/350 Turbo w/shift kit 10" Redneck Performance Verter w/2500 stall Hooker Super Comps part#2808-1 Performer RPM Air-Gap 12 Bolt w/3:73 gears- Eaton Posi Comp Cams XE262 with 1.6 Crane Energizers, Road Demon 625 and Brodix IK 180 heads

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