Recently I bought a 1993 Range Rover works fine but I suspect some lousy mechanic disconnected the tachometer (it reads maximum when I start the engine). I have tried to check on various manuals and electrical wiring schematics but there is no mention of where is the tachometer connected (usually to the negative on the ignition coil, I think). Can anyone help me make the tachometer work? What is the color of the wiring for the 1993 model?
Thanks, Miguel

 

After reading several manuals I found out that the tachometer is connected to the alternator via wire WS (white-grey). I am now trying to locate the wiring and see if I can fix it. In fact, there is a test procedure outlined on the electrical Troubleshooting Manual.

MIGUEL

 

That small wire can come loose on the back of the alternator, the alternator, that drives the tach. can also be failing.

 

The tachometer signal comes from the coil in those first couple years of V-6 cars.But... that doesnt explain the speedometer. Id check for loose wiring connections behind the cluster, since thats about the only thing that speed & tach have in common.Speedometer signal comes from the VSS which is on the transmission. Maybe? its just a coincidence to get wiring problems on both those separate items?