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Speedometer not working?

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Old 09-07-2011, 08:22 PM
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Car: 1990 Trans Am GTA With T-Tops
Engine: 5.0 Liter F.I.
Speedometer not working?

I have a 1990 trans am gta with the 305 tuned port injection engine. My speedometer only works half of the time. Could this be the cable? or the actual gauge itself? If so, how would i go about fixing this?
Old 09-08-2011, 08:58 AM
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Car: 92 Camaro RS
Engine: 350 :)
Transmission: 5 Speed
Axle/Gears: 3.73 posi 10 bolt
Re: Speedometer not working?

i believe if IIRC that in 1990 they became electrical.
Old 09-09-2011, 12:48 PM
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Re: Speedometer not working?

ok if I'm right your speedometer is mechanically driven .... if it is unplug the cable and check for defaults .. if nothing seems wrong it can be your gauge ... what i did to figure it out on my car i used my drill to turn the rod inside so see if it was really the gauge the problem
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