OK so the rear end of my 7 has had the notorious clunking problem since I purchased it. Over the last few weeks I decided to replace all the common problems related to the rear end clunk....

I replaced all 6 pillow ball bushings, 2 brand new differential mount bushings, installed new toe links and new trailing arms.

I took the car for a drive today and when I backed it down the driveway (roll up curbs) I immediately heard a clunk that sounded like it came from the passenger side rear end. Then whenever I would accelerate and weight would transfer back and forth I could hear the clunk...


What else could possibly be causing this god awful noise?

 

Check your PPF for cracks.

 

that or theres a shot put ball in your spare area haha jk jk..sorry.. just had to..

 

check your exhaust.. my friend had a similar problem. turned out his exhaust hanger on the muffler was loose and would clunk

 

Should probably check that everything is properly tightened/torqued down

 

I am trying to diagnose the same thing. Have not replaced any parts yet but one other item to check is the rear sway bar end links.

 

How many miles on your car?

I bet you have worn out rear suspension arm pillow *****

Rear of the car clunks like crazy when they are worn out...

 

Ive had some clunking due to exhaust before. I cant remember but I think it may have been due to the aftermarket mid pipe I used did not have a hangar like stock and allowed some movement that would cause contact with the under body and cause clunking noise from passenger rear.

 

I have 70,000 miles on the car.


I'll check the exhaust to see if that is it....


Japan2LA I replaced the pillow ***** already, still clunking

 

make sure the baffles in your gas tank aren't tearing loose and slapping around.

and a 2nd for checking to make sure all bolts are properly torqued and see if your exhaust can bump into something. Just grab the muffler and shake it around on the rubber hangers.

 

Shock mounts?
Hatch and hatch supports tight?

In a quiet enviroment, put the car up on stands and have someone yank the wheel around while you listen and feel. I remember I could usually feel sloppy bushings/components easier than I could hear it.

 

Sounds like a broken ppf