Hey Ive got a 91 LX 5.0 I just got the car today and the tach (and tach only) jumps around all over the place....driving, idling whatever your doing it just does it. once in a while it will stabilize for a second but then goes nuts again...if anyone knows or has a clue of what to look for help would be appreciated, im totally new to mustangs let alone american cars.
Thanks,
Colin
Thanks,
Colin