Tacho stopped working

[Ean Austral]

Gday All,

1990 model 3.9 is the tacho run off the electrics somewhere ? . Started the car today and no tacho , was working a few days back and the oly thing I have done is remove the air con pipes that run across the fire wall.

Still learning to navigate the rave manual.

Thanks and Cheers Ean

[Vern]

Wire on the back of the alternator.

[Ean Austral]

Wire on the back of the alternator.

Ok thanks [thumbsupbig][thumbsupbig][thumbsupbig]

Cheers Ean

[p38arover]

Yep, the W terminal which is off one phase of the stator. You may have a dead alternator or you've knocked the wire off when working.

[DoubleChevron]

Don't worry, I'm sure it'll have fixed itself by the time you use the car again ................................ [bighmmm]

My tacho sometimes has a mind of its own. But it usually comes good after a short time.

[bee utey]

A loose or wet belt on the alternator can do it too, slowing the alternator right down after the battery has been drawn down.