Range Rover Classic 92 electronic Speedo not working but odometer is

[MikeD]

This is a second fault (gearbox grating) on a vehicle that has been standing for a fair time. Speedo was working and, other than the wiring from the transducer to the clocks, nothing else has changed

The odometer is working and as it is an electronic head I assume this makes it most likely to be the head unit itself

Has anyone experienced this and found a fixable fault?

 

[Nonimouse]

I take it this is an auto?

[MikeD]

correct 3.9 auto, flex drive to transducer, wire from transducer to speedo

[Bowie69]

Are the flex plate bolts tight, and the plate itself not cracked?

Really can't think of any other situation where you would get grating from an auto gearbox, given there is no meshing/unmeshing of gears to be done.

[MikeD]

1 hour ago, Bowie69 said:

Are the flex plate bolts tight, and the plate itself not cracked?

I have a spearate thread with a little more info on this https://forums.lr4x4.com/topic/112833-range-rover-classic-39-auto-gearbox-grinding-in-neutral-and-park-but-ok-in-reverse-or-drive/

It came from a known working car and gearbox and engine weren't separated in the transfer

[Nonimouse]

First thing I would check is that you don't have an earth issue and it's earthing through the flex drive. Then I'f do what Bowie said...