Im confused now, is she talking about the tack or the speedo? lol Either way it wont hurt her tranny.

 

I've seen this in a lot of civics too. Usually it's a sign the ignitor is going and 99 percent of the time a dist swap fixes it. Good luck

 

You are right. My apologies.

Hate vehicle problems. Thanks for your help.

 

My bad, I got the two confused. Crazy is correct. (as usual )

Would her 91 be similar to a 95? https://dodgeforum.com/forum/1st-gen...achometer.html

(mine does the same thing but is a 93)

 

SOLVED! It was the negative wire (the larger one) coming from the battery, and attached to the back of the power steering reservoir (pump?). It finally fell off. Of course, truck wouldn't start....just 'tick-tick-tick-tick' when trying to start.

Ended up reattaching the wire somewhere else (no nut to fit the original bolt).

Started right up, no more tach jumping.

Thanks for your help.

 

Cool, good to know. I dont think I would have guessed that other than grounds can be a real pain in the butt. Thanks for the reply!