speedometer problems

[Russ963]

speedometer isnt working properly
and when it does the needle is jerking up and down
any ideas ?????
Thanks

[freakray]

More info would be helpful.

Model and year?
Manual or Auto?
Car been in any wrecks?
Transmission work recently?

[2turboimports]

^^^ sounds like someone may have tried replacement gauges and pressed the needles down too hard. I didn't think any newer suby's used a speedo cable into the tranny. I think they use a mag pickup.