Trans temp goes to 340?
Anyways I did some research and found that a lot get away with running their gauges off the test port on the driver side. Well I went ahead and did so. Tighten it til it was snug. After lettinyg the car warm up I see the gauge rising about 1F every second until maxing the gauge at 340. I turned off the car and checked fluid levels and everything was fine. I then checked the cooler lines and they were bearly warm. Hell the canton valve covers were hotter.
I then started to think the sending unit is the culprit. Like I said I tightened it down until it was snug. I looked at the plug I removed and compared it to the sending unit and wanted to install the sending unit as deep as the plug it had.
So what's going on here? Should I just relocate it to the pan? I want to buy a pan with a plug for one but I'm thinking of just getting a truck pan and have a bung welded to it for it.
Call the manufacturer and see what they have to say once you've checked your wiring. You might try running dedicated power and ground wires directly to the batter for the purpose of testing.....





