So, one could describe it as a "slow" rattle?
Wheel (hub) bearings... They'll make noise at slower speeds, tend to quiet down the faster you go. Too sometimes make a clunking or grinding sound when turning - esp in the direction of the bad bearing. Fairly easy to replace, though can be a *****. I could walk you though the repair.
I'd too check all your door hinges and latches. My suburban's doors were very heavy. Every few years I'd have to replace the hinges and latches. The doors would sag just a bit. I doubt this is your problem. I just wanted too keep coming up with possibilities.[/QUOTE]
The prank idea provoked a very old memory: I was an automatic transmission tech at a large Pontiac/GMC/Honda dealer back in the day. In those days, all 3 brands were serviced in the same facility and we had a common (and very huge) shop. I worked a couple of stalls over from a young grasshopper Honda apprentice who had recently completed the supervised aspect of apprenticeship and was going solo on a Honda Accord head gasket replacement. In those days, there were dozens of vacuum hoses, and one neede to be very diligent about reinstalling them after performing service repairs lest there be a problem. To aid one, there was a vacuum diagram under the hood that resembled a map of a city, there were SO many hoses!
We had a couple of used car techs who were jolly pranksters. Seeing that this young apprentice was finishing up on the complex repair on this Accord, one of the 2 used car techs took one of those rings you used to get in a Cracker Jack boxes as a prize that made a "Wheee" noise when blown into, and affixed it into the tailpipe with some of that thick A/C insulation tape while this young man wasn't looking.
Young man starts the car, and it runs super smooth... and quiet... until he revved it up... and heard a loud/high pitched shrill "WHEEEEEEEEEEE" whereupon he quickly shut off the car. He opens the hood and commences to start reading the vacuum hose legend and double check all his connections. Satisfied that he'd don everything under the hood well, he treks off after the shop foreman for a little tech help.... but the used car tech removed the ring while he was gone. After the Apprentice and the shop foreman run the engine and leave for a test drive, they return and are satisfied that the car is fixed, and the youngster can turn in the old parts (warranty required this). So, he bags up his parts and goes to wash his hands and complete the warranty paperwork so he can park the car in the lot.... but the used car tech puts the ring back in the tail pipe!!!
Sure enough, young Apprentice returns and starts the car and "WHEEEEEEEEE" !!!!! The youngster jumps out and is throwing a fit! That's when the used car dude walked up and let the fella know he'd been pranked! It was all good afterwards... Young apprentice was relieved that it wasn't an issue or oversight on his part!
