Not shure if this is the right place for this thread move if needed. Started about a month ago Im going down the road trans temp 130deg then it starts jumping all around needle moves extremly fast to 190 then to 130 then to 210 then to 180 then 210 ect ect ect then it will go back to 130 for a few minutes like normal and then start going all over the place. Its a isspro white background with red pointer and i got it last summer from diesel manor. Is there any thing i can check?? any help would be appreciated.

 

Sounds like a loose wire or bad ground. I would just check all the wires.

 

i had the same exact problem call diesel manor tell them, i did and they sent me a complete tranny gauge for free because the isspro gauges have a good warantee. when i got the stuff i changed everything except the sensor and it was still doing it. i finaly changed the sensor and bingo fixed.