COBSS Matt

Hi,

I recently put on my summer tires and changed my front and rear brakes. I noticed two days ago that there is an awful clunking noise coming from the rear of the car when I hit a bump with the pasenger side rear tire. I checked the spare tire to make sure it was secured tightly. Checked the sub to make sure it was on tight. Checked the battery to make sure it was tied down. Checked the bearings. Rechecked the brakes. Checked the bushings in the rear and after all that it is still clunking around back there. I did a search on the forum and found that others have had the same problem but I found no solution. Has anyone found the solution?

Bumps for Clunks

JapEatr

iTrader: (9)

exhaust hitting the crossmember?

chris88z24

Wiggle the exhaust around and see if it hits anything.

COBSS Matt

Thanks guys. I ran out and checked it and it moves a squeeks a little. I will check it from front to back tomorrow 'cause now I gotta go play soccer.

chris88z24

Probably not the exhaust then.

The wheel bearings are shitty on these cars, I went through like 3 or 4 already. Plus they're covered under the powertrain warranty believe it or not.

If you have a good dealer it wouldn't hurt to bring the car in and have them diagnose/fix the issue. If it's a warranty claim it won't cost you anything.

COBSS Matt

Looks like thats what I'm going to have to do. I checked everything and tighteng everything but its still clunking back there. But what I don't get is, if it was the bearings I should be getting some play in the wheels when I have the car lifted. Anyway, I'll bring it in.

rukkee

iTrader: (3)

Service Information
Home Publications Number Search New Bulletins Bulletin Search Feedback Help
2006 Chevrolet Cobalt | Cobalt, Pursuit (VIN A) Service Manual | Document ID: 2445405
#06-03-09-005D: Squawk/Squeak Type Noise from Rear Suspension While Driving Over Bumps at Low Speeds (Replace Rear Suspension Insulators) - (Apr 15, 2010)

Subject: Squawk/Squeak Type Noise From Rear Suspension While Driving Over Bumps At Low Speeds (Replace Rear Suspension Insulators)

Models: 2005-2009 Chevrolet Cobalt
2005-2006 Pontiac Pursuit (Canada Only)
2007-2009 Pontiac G5

This bulletin is being revised to update the Parts Information. Please discard Corporate Bulletin Number 06-03-09-005C (Section 03 - Suspension).
Condition

Some customers may comment on a squawk or squeak type noise coming from the rear suspension. This noise typically occurs while driving over bumps at low speeds.
Cause

The cause of this noise may be the rear suspension insulators.
Correction

Replace the rear suspension insulators following the Control Arm Bushing (Suspension Insulator) Replacement procedure in SI.
Parts Information







P/N 22729411


Insulator, Rear Suspension (RPO FE3, FE5 with LSJ Engine through 2008)


Warranty Information

For vehicles repaired under warranty, use:

Labor Operation


Description


Labor Time

E4090


Insulator, Rear Suspension Support - Right - Replace


Use Published Labor Operation Time

E4091


Insulator, Rear Suspension Support - Left - Replace

GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.


WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION
Š 2010 General Motors. All rights reserved

Here's what they look like

COBSS Matt

Woa!! thanks dude. that helps and make alot of sense. I'll be sure they check that out.

rukkee

iTrader: (3)

Np ... I had mine replaced with around 25K on the clock. The top of the spring actually cut threw the rubber insulator on mine .... the replacement from GM looked like a different design than what was on my 06 ..... they must have improved them somewhere along the way. Good luck with it .

wollis1

any update?