2006 RR Sport V8 Lux Edition So my truck overheated. I determined it was the water pump. I replaced the waterpump and also found a crack in the housing that holds the thermostat (common failure point because it's plastic). I replaced it as well. In order to do this I took off the fan, etc... Now the truck is throwing a fan error code, which makes sense because it is still getting hot but only while idling at stop. If you drive it the temp goes back down. It is also throwing an EGR valve code. Before this nothing. Can anyone point me in the right direction. I don't even remember it having an electric fan when I took it apart. I remember a manual fan bolted to the front of the motor. What am I missing here?