Tachometer showing wrong RPM


Nez'sRanger

Active member
Joined
Oct 6, 2018
Messages
159
Reaction score
42
Points
28
Location
Los Angeles, CA
Vehicle Year
1989
Make / Model
Ford
Engine Size
2.9L V6
Transmission
Manual
My 89 2.9 has this strange problem with the tachometer. When I first start it, usually when cold, the tach will give me a reading nearly 2,000 higher than it really is. It usually normalizes later on, but it's pretty annoying. Any idea what's up?
 


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