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erratic speedo problems


2001FORDRANGER

New Member
Joined
May 12, 2009
Messages
113
Reaction score
1
Points
0
Location
Sacramento Valley
Vehicle Year
2001
Make / Model
ford
Engine Size
6cy
Transmission
Manual
Hi folks please tell what could be the problem, while i'm driving at freeway speeds, and usually in 4 or fifth gear, the tach start to jump back and forth between 3,000/4,000 rpm what could be the problem, this all happen after i installed the camshaft syncronizer, everything runs pretty smooth, and have been for at least 2-3 weeks, with the exception of the erratic behavior of the tach, please let me know your inputs.

p.s i have checked for vacuum leaks and any loose connections, and all seem to be okay.
 
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