Transmission temperature gauge install.....for 4eat.
I have installed the gauge and sender by cut the atf rubber tube right by the transmission, putting a brass T, and screwing the sender into the top of the T. But the gauge doesnt read anything, it just sits below 100. The brass get real hot down there so I know the sender is being fed. I thought it was since I didnt install it into the tranny pan so it wasnt grounded. So addign a ground wire pegs the temp gauge over 250 instantly no matter where its grounded on the engine or frame. Can you think of a problem it might be?