Join Date: May 2008
Location: Stuart, 30 miles north of West Palm Beach
Temp sender bad, or did I get a temp switch?
I have a '93 XJ with a '98 4.0 in it. It didn't have the hole tapped on the head, and it was just the plug, no sender. I want to get the temp gauge working, so, I got a 3/8" T, and put it in the the t-stat housing so I could put both the temp sender for gauge and the temp sender for the ECU in the t-stat housing hole. I bought a new temp gauge sender from Advance, and plugged it in. Now, this was done on a cold engine. When I turned on the Jeep, the temp gauge went to the halfway point right away. AS the engine warmed up, the temp gauge went up until it pegged out. Now, what would cause this? Everything that I can diagnose leads to the sender either being the wrong one, or it's a bad sender. What else can I check? Thanks!!
86 MJ LB Custom, 88 MJ SB Eliminator, 92 CJ9, 93 XJ Country, and 04 WJ Laredo/Limited