So we changed my aux fan, and rebled the coolant system. I'm driving my baby again and its just a roaring good time. I tore off a couple times down the road and I'm feeling great. I hit the highway for some more fun, (with the AC cranked for testing purposes) and it begins again. The car overheats when I'm at highway speeds. In the city its ok. At a stoplight or whatever, it begins cooling off. If I turn on the heat, it cools off a bit.


Why? Is it low on coolant? Right now, its cooling off. When its cool again, I'm going to check oil/coolant levels. The engine is at 100% still pulling strong and torquey down low. Maybe I need better coolant? I'm so confused and frustrated. Please help, I'm so damn tired of driving that F150. Such a soulless vehicle.