Problem: Rear suspension has developed a remarkable chirping sound under sudden load on the passenger side. This only occurs while the vehicle is in motion, as the sound cannot be duplicated by jumping up and down in the trunk :th_laugh-lol2:. The noise can be easily produced by driving the rear axle over a speed bump at approximately 10 mph. Refer to Youtube video for examples.
YouTube - Chirping Suspension.mp4
Car: 2002 Pontiac Grand Prix GTP
Eibach Springs, KYB AGX Struts, GMPP Handling Kit, GMPP Exhaust (only listed because of the bushing/metal hanger interface as a possible suspect)
Attempted Fixes:
*The rear swaybar bushings have been greased: problem persists.
*Fender has been rolled to provide additional clearance throughout suspension travel: problem persists.
*Strut mounts have been loosened and re-tightened: problem persists.
*Knuckle to trailing arm bushing has been lubricated: problem persists.
Comments:
I'm at a loss at how to alleviate the issue, I'm led to believe that since this problem is only repeatable while the vehicle is in motion, that the wheel bearings are likely worn/wearing down. Any other thoughts on this issue?
YouTube - Chirping Suspension.mp4
Car: 2002 Pontiac Grand Prix GTP
Eibach Springs, KYB AGX Struts, GMPP Handling Kit, GMPP Exhaust (only listed because of the bushing/metal hanger interface as a possible suspect)
Attempted Fixes:
*The rear swaybar bushings have been greased: problem persists.
*Fender has been rolled to provide additional clearance throughout suspension travel: problem persists.
*Strut mounts have been loosened and re-tightened: problem persists.
*Knuckle to trailing arm bushing has been lubricated: problem persists.
Comments:
I'm at a loss at how to alleviate the issue, I'm led to believe that since this problem is only repeatable while the vehicle is in motion, that the wheel bearings are likely worn/wearing down. Any other thoughts on this issue?
Last edited:
