This is my first post, so I will make it a good one. I have a 1996 SE that sporadically had the temperature gauge "pegging out" and then reading correctly for about 2 weeks. Then, while on the highway the motor overheated and the coolant was overflowing from the recovery tank. I towed the car home, checked and had exhaust bubbles in the recovery tank. After pulling the motor, the head gasket was blown on cylinder number 1. I checked the bearings, (which were good), cleaned eveything, replaced the thermostat, temperature sending unit at the thermostat housing, and then saw a sending unit screwed into the back side of the block. After checking in the manuals, I found out that the sending unit at the thermostat controls the computer, and the rear sending unit controls the temperature gauge. This seems correct, because after I put the motor back together and have it running with my scanner hooked to it, the temperature on the scanner reads correctly even though the gauge is "pegged out". I had to take the old sending unit to NAPA and have the numbers matched to buy a new sending unit, because the other parts houses, (Autozone, PepBoys, ETC), did not list the part.
My problem is: The old sending unit had a wire spliced into the pigtail which made it approximately 8" long, and the new part has a wire lenght of only about 3". I can not find the wire connector for the sending unit, and it is not shown in the wiring diagram that I have or can find on the internet.
My brother has a 1995 Grand Prix SE, and the wiring is not even close to being the same.
Can someone let me know where to look for the wire connector that the rear sending unit plugs into?
Thanks for the help!
