groaning noise from 560SEL
I was wondering if anyone would be able to give me some info on this one.
When I start from a full stop I hear a whining/groaning (like a tiny foghorn?) noise coming from the rear area of the car. It doesn't happen if I start slow, only if I give it a good amount of gas. The noise is more aparent if I start on a steep incline. Once I reach 15-20 mph the noise goes away. The car is an '87 560SEL and there don't seem to be any other symptoms. Any ideas?