Join Date: Oct 2008
Location: Northeastern Illinois
Well, I went out and did like you said. I took the wire off the sending unit and pressed it against a exhaust manifold bolt and the gauge pegged. I then took my continuity tester and attached one wire to the negative battery terminal, and the other to the housing of the sending unit, and I got good tone. That means the ground on the sending unit is good, right? So I hope that means the sending unit is bad. Also, on this same note, I also installed a new speedo cluster. Everything works on that except the temp gauge. I also took the sending unit wire off and touched it to ground, and the gauge moved, slowly. Both sending units are new, both gauges are new, the wiring harness is inherited, but looks brand new. I'm thinking my next step is to run separate wires from the sending units right to the gauges and see what happens.