Ok, I have a 2001 3.0 44,000 mi great condition but tonight i noticed as i come to a complete stop and the truck comes to a steady idle(in drive or reverse) there is a vibrating noise coming from the driver door. Sounds like a back massager. I sprayed the hinges with a litttle wd 40 it helped a little but still there. If you put in P or N it doesnt do it only in D or R. I put in D with the Parking Brake on and got out and looked under the truck no noise there and it only does it when the door is shut... WHAT GIVES... NEED HELP it drives me nuts it is not a steady hum either it is up and down like you car is idling but mine is steady....