While I was doing that I noticed the engine temp sensor plug came off. At some point the plastic got broken off and it was just plugged in but not secure the connector was still plugged into the boot but the plastic housing on the sensor was gone. Just replaced the sensor. Never noticed that before or had any temp gauge issues. I don't know how many of these little things can make these computer trucks act up. Maybe that was one of them. Haven't ran it yet since I changed that so we will see.