I pulled the jumper out, repaired the two wires and reconnected it. No overheating. It's actually a little cooler. Does that sending unit controll fuel mixture as well as the aux fan? Seems to run better.
A few weeks ago the AC was blowing warm air. It turned out to be the single wire going to the same sending unit. It had become disconnected from the connector. I soldered in a new section of wire to the connector, spliced it into the single wire and that fixed it. Love these cheap and easy fixes.
Now if I could just hire the HitMan to come over to help with installing the guide-rod bushings, and subframe bushings.