undo the clip on back of guage, then feed thru firewall down to trans.
You could disconnect the cable down at the transmission, drive it around, and see if the noise has quit. Some cars don't have a cable-the speedo is electronic, so then you might have a vacuum leak somewhere under the dash.
There is no speedo cable, the dash is electronic. Thirdgen.org has more detail on how to fix it.
Pull the speedo and gauge package out of dash. Unhook wiring. Remove speedo cable from speedometer. Pull speedo cable out of housing, lube it lightly and re-insert. Hook everything back up and re-install gauges. Pull the speedo and gauge package out of dash. Unhook wiring. Remove speedo cable from speedometer. Pull speedo cable out of housing, lube it lightly and re-insert. Hook everything back up and re-install gauges. Pull the speedo and gauge package out of dash. Unhook wiring. Remove speedo cable from speedometer. Pull speedo cable out of housing, lube it lightly and re-insert. Hook everything back up and re-install gauges. Remove gauge package. Remove wires and speedo cable housing. Pull speedo cable out, lightly lube with grease and re-insert. Hook everything back up and re-install gauge packege.
Going through the same thing on a 89. Pull the front of the dash off above the steering column. There are 4 screws holing in the gage cluster. Undo them and pull forward, then disconnect the cable from the gage cluster. Note: the (speedo) cable is just clipped to the instrument panel a good yank is all that is needed to remove the speedo cable.
there is no speedo cable so if your speedo isn't working you either have a faulty sending unit or the dash half of it is bad
Fiero does not use a speedo cable There is an electronic sensor mounted on top of the transmission that both the engine computer and the speedo in the dash read to get the speed.
runs out the back of the dash, under the firewall, and in the top of the transmission.
The cable runs from the release under the dash to the adjustment bracket under the Silverado. Remove the nut at the adjustment bracket and disconnect the cable. Pull the cable at the dash end for some slack, and disconnect from the dash release. The cable can now be pulled out and replaced.
It's either the speedometer gear in the tranny, the speedo cable that runs to the gauge, or the gauge itself in your dash. Either way it'll be a pain. The way I check is to remove the gauge in the dash and move the truck, if the cable spins ok, then you know it's the gauge. Best of luck.
Fiero does not use a speedo cable There is an electronic sensor mounted on top of the transmission that both the engine computer and the speedo in the dash read to get the speed.
Fiero does not use a speedo cable There is an electronic sensor mounted on top of the transmission that both the engine computer and the speedo in the dash read to get the speed.
Some screw on. Some have a nylon clip that snaps into place when you push the cable on the speedo.