Club 80-90 Forums

Hey peeps,

Since I swapped out the coolant my temp gauge has been acting very strangely. Yesterday on a run I stayed at a steady 55mph and the temp gauge was just at the top of the cold block, then it raised to nearly middle and then back down to the cold blok again within a five minute period after a 20 minute run. It didn't move from the cold block for the remainder of the journey. This is all with the heater in the COLD position so lord knows how bad it would be set to hot.

I've bled it to death, there's no air left. I don't know what to do now

Assuming the temp gauge is working, and the wiring to the sender is intact and not shorting anywhere, then it can only be because there's air around the sender.