isspro tranny gauge

[Fastpowerstroker]

Lately I have been seeing my gauge readings flicker wheen going over a bump in the road. The need le may go up 20-60 degrees and back to normal readings (I think). I dont trust it anymore. I tightned the connections at the main junction box still nothing. Is this a bad gauge, sending unit? Please help.

[06F250FX4]

Hmm, my tranny gauge does the same thing. I have made sure all the wires are tight and sealed and that I don't have any shorts in them. I can start the truck and be idleing and it will max out and then drop back down, then jump 60-70 degrees then level back out. Didn't mean to hi-jack your thread. Was just wondering the same thing though

[Fastpowerstroker]

Figured it out. loose butt connector coming off the sending unit. One of these days I'll do it right and solder them but its too hot today: For now I just crimped it tighter.

[CSIPSD]

90% of any gauge issues are loose connectors. Spend a little more time and money and get good connectors that have heat shrink and seal connections...