83 GMC Instruments Do Not Work - The 1947 - Present Chevrolet & GMC Truck Message Board Network

67RS/SSx2 · 01-11-2014, 10:46 PM

Thanks! There was a white connector connected to the fuse block that hung over in front of the gau-idle fuse that made it nearly impossible to pull out. After a little work I was able to replace it.

Now the volt meter rises to ~13 volts when the engine is running. The oil pressure gauge bounces around 45 psi at idle and jumps beyond 60 psi when any throttle is given. Seems to read high. Think I'll try to pick up a new sending unit at O'Reilly's tomorrow to see if that helps.

Fuel gauge sets just below 3/4 now on both tanks. I'm still a little leery of that.

01-11-2014, 10:46 PM	#3
67RS/SSx2 Registered User Join Date: Sep 2010 Location: Central Oklahoma Posts: 253	Re: 83 GMC Instruments Do Not Work Thanks! There was a white connector connected to the fuse block that hung over in front of the gau-idle fuse that made it nearly impossible to pull out. After a little work I was able to replace it. Now the volt meter rises to ~13 volts when the engine is running. The oil pressure gauge bounces around 45 psi at idle and jumps beyond 60 psi when any throttle is given. Seems to read high. Think I'll try to pick up a new sending unit at O'Reilly's tomorrow to see if that helps. Fuel gauge sets just below 3/4 now on both tanks. I'm still a little leery of that. __________________ 1972 C20 402/TH400/3.54 Highlander 1969 Camaro RS with SS trim, 1967 Camaro RS/SS (sold) 1983 GMC Sierra Classic 2500 crew cab (sold) 1972 Chevy C10 Cheyenne Super (sold) 1984 Chevy Silverado C20 crew cab (bought new by my uncle, in the family until I sold it)

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