97powerstroker
Full Access Member
so ive got a new pronlem now.i got the hole drilled and tapped.have thermocouple all installed an ran into the cab.so before i hook all the wires up for good,i just do a quick connect to make sure everything works.so when i hook the 12v to the gauge it shoots up to 150 and stays there,truck running or not.whats going on?everything is hooked up right,i quadruple checked.but if i dont have the thermocouple wires hooked up,just the power and ground,i can touch the temperature posts on the back of the gauge and it rises alittle bit because the heat of my fingertips,so it seems like the gauge is working.then as soon as i hook up the thermocouple wires it shoots back up to 150.anybody know whats goin on?