- Joined
- Jul 31, 2013
- Messages
- 174
- Reaction score
- 4
- Points
- 18
- Location
- Western Colorado
- Vehicle Year
- 1989
- Make / Model
- Ford
- Engine Size
- 2.9
- Transmission
- Manual
The tach on my 89 B2 occasionally shows higher rpms than the engine is turning. I first noticed it occasionally when the cruise was engaged. Lately it has happened without cruise on. All the other gauges are behaving as expected. What should I look for?