We have a 2002 Yukon with 38k on the odometer, just out of warranty. When it is turned either way there is a bump in the rear suspension. It is on the driver's side and somewhere near the axle. It is loud enough to hear over the radio but not much louder than that. I have been on the creeper twice and can't find anything loose to my shaking and beating.
Any ideas?
Thanks, Karl