Registered Forum User
Posts: 20
Join Date: Aug 2001
Location: Walton-on-Thames
I had a 94 900ss that this happened to. turned out to be one of the drives - but I can't remeber if it was inside the tacho or at the engine end. It was repairable (as opposed to having to be replaced)
You could always buy a second hand tacho, but check that it's not the drive from the engine that's gone first.
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