This is my first post so please bear with me,ok. I'm the owner of a 1992 GP with over 250,000 miles. I was told I needed to replace my coolant control sensor, because the temp gauge just goes crazy, low to high back to low, this just goes on forever. If someone could tell me were it's at, I would surely appreicate it. Thanks in advance.

 

Never mind, I found it. Replaced the sensor, still the temp. gauge just goes up & down. Anybody have any suggestions?