Loss of speedometer reading?

[Tuskaa 7]

Had the bonnet off yesterday just to look at a couple of minor issues, and I seem to have lost both manual and digital speedometer readings. Have I knocked or nudged something I shouldnt have?

[The Surveyor]

Speedo pick up is via a toothed wheel and sensor off the diff. These are known to fail if they get dirty, or wet. Mine went last year after our lovely dry summer.... but came back after everything dried out. I'm not sure you'll have done anything under the bonnet to effect the pick-up.

It may be worth checking the fuse board to see if the speed sensor fuse is shared with anything which you may have touched.

Paul

[glow worm]

Often caused by wet conditions....reducing the transducer gap (near rear axle/diff) has been known to fix the problem quickly and cheaply, your service/dealer should be able to do it in minutes or do it yourself if you can get the car up on a ramp (as previous thread demonstrated http://www.pistonheads.co.uk/gassing/topic.asp?h=0... )

Edited by glow worm on Monday 7th January 16:42

[Tuskaa 7]

Thanks guys

Excuse my ignorance but what does this look like and exactly where will it be found? How do I narrow the gap?

[glow worm]

I know it's usually got a blue lead...SPLUFFY is your man , he's just done it....I just get the info. from my mechanics , the TVR Gurus in Kirkham

[The Surveyor]

Tuskaa 7 said:

Thanks guys

Excuse my ignorance but what does this look like and exactly where will it be found? How do I narrow the gap?

Put the back end up on axle stands and you'll see the toothed wheel on the diff and you'll see the fixed reader easily