no tach or speedo

GMC SIERRA
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B97RANGER
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i have a 1995 gmc 2500 with a 5.0 L AUTO 4X4
when i start my truck, very frequently the tach and speedo do not work at all, i believe causing the transmission not to shift. But the other guages do work ( gas. oil. temp. volts). on the other hand when i use my remote starter the tach does work until i turn the key on and hit the brake pedal (clearing the remote starter) then the tach drops to nothing. any help would be appreiciated, i'm stumped
Sep 19, 2007 at 6:34 PM
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LILWILLS
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does the light on the gaer shifter still work?
I ahd this problem too that went away eventually
try diconnecting the batery for a couple of minutes to clear the computer
it could also be a bad ground somewhere
Sep 20, 2007 at 5:45 PM