Tach question
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Joined: Jan 2007
Posts: 62
Likes: 0
From: LaGrange Georgia
Tach question
What is usually the culprit when the needle on the tachometer goes all the way around and stays in one spot? Also works correctly intermittently. 1981 stock vette automatic transmission
Safety Car
Joined: Nov 2004
Posts: 4,359
Likes: 57
From: Mundelein Illinois
Either bad connection or new PC board for tach. The board was bad on mine. Wuld not work when cold but worked fine when it warmed up. Took a soldering iron to all points and eliminated the cold solder joint.
Hope this helps
Hope this helps
Drifting
Joined: Oct 2007
Posts: 1,458
Likes: 1
From: Collinsville MS
St. Jude Donor '08
Lots of posts on here about that. Could be a variety of reasons. Do a search for "tach board" on you will see them. If you decide to replace the tach board pm me, I can send you some step by step directions given to me by some others if you need it.
