Okay, here goes another one. So i open the car door tonight and the red temp light (overheating) flashes with the service engine soon light, the heater stops running, and the lights turn off for a moment in the cab. one full second later, heater fans start again and all is normal. didnt happen every time i opened the door, but it did happn twice out of 5x i kept trying to recreate the symptom. for lack of a better term, WTF? :roll: