When I start my truck and begin to drive the fan is very loud and gets louder as the RPM's go up. After a half mile or so it will return to its normal speed and sound. It will do it every time the truck is started even if it was just shut off. I checked the blades, belts, air filter, u-joint, and radiator and they are all fine. I cannot figure out. Any help is much appreciated. thank you.
Dec 13, 2009 at 6:27 PM
