Not KJ related but still looking for opinions/options. Please move if there's a better place for this.
2008 Ram 1500 SLT 5.7L 4WD
Past week the truck has been overcooling. Thought thermostat was stuck open so replaced it on Saturday. Same issue. Replaced the temp sensor today even though my scanner was giving correct readout of the temp. Still overcooling/not getting to full temp, or taking A LOT longer than normal to reach full temp.
I did notice that the AC fan is running constantly with the selector in defrost. Switch to vent and it will shut off. Turn blower fan/system to off and fan will stop. Problem is I always keep the selector in the defrost/foot position.
This whole time the temp selector is in the hot position. AC button is off.
With this said, I was thinking the TIPM connections could be corroded causing the fan to constantly run. With it running, I'm thinking it's pulling cold air in across the motor and cooling the motor itself. I cleaned them with contact cleaner and put some dielectric grease on. Issue continues.
I'm thinking the TIPM is bad somewhere or something is going on with it.
Anything I may be missing? I unplugged the AC fan for now. Haven't ran truck yet to see if it helps.