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Discussion Starter #1
One of the first things any Cobalt owner notices is the crazy amount of squeaks and rattles these cars can produce. We occasionally get posts about some of the more suspect noises (dome light, license plate, etc). I thought it might be beneficial to make a thread about the more elusive ones, because let's be honest, they will drive a person insane.

If you've tracked down an annoying noise in your car, it would be great to know where it was and what you did to stop it.
 

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Rattling under dash. Two bolts came completely out. I have one in my glove box ill take a pic when I get home from breakfast
 

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lol I'm getting all kinds of clunks and now a metallic rattle all underneath my car. I have yet to figure any of it out. I also have a rattle noice in my engine and I'm sure it's the timing chain/tensioners.
 

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Discussion Starter #5
So one of the most constant and annoying squeaks is coming from my rear seat backs rubbing against the frame. Any time I hit a bump it's there. I dropped them down today and no noise. I'm wondering if anyone has any suggestions of what I might use to insulate the frame where the seat backs rest. Ideas?
 

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I cut stuff
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I've fixed too many squeaks and rattles to remember. And they keep showing up in new places all the time. I take them on one by one.
 

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I'm in bankers boat, come drive mine with the bad wheel bearing and the K&N rubbing when at a stop sign while in gear it rattles and chirps and hums all kinds of fun music...i think i've even heard the star spangled banner out of all my rattles and stuff lol
 

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Levee
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I never heard my rattles and noises, my radio/exhaust/turbo were always too loud to hear anything else lol.
 

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So one of the most constant and annoying squeaks is coming from my rear seat backs rubbing against the frame. Any time I hit a bump it's there. I dropped them down today and no noise. I'm wondering if anyone has any suggestions of what I might use to insulate the frame where the seat backs rest. Ideas?
Possible that the mechanism that clamps onto the seat hook is not gripping as well as it used to and either needs to be tightened or replaced.

Solid mounts + neutral balance shafts are ridiculous
lol, you definately win the "most rattling in one car" award in my book!:laugh:
 

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Levee
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I'd have to hear it to be the judge of that lol!
 

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You will get your chance this summer. I can't imagine it will get any better with the turbo in!!
 

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i'm in bankers boat, come drive mine with the bad wheel bearing and the k&n rubbing when at a stop sign while in gear it rattles and chirps and hums all kinds of fun music...i think i've even heard the star spangled banner out of all my rattles and stuff lol

haha!!!!
 

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Discussion Starter #16
Came across this today. Thought it might be useful for some.

#07-08-50-001A: Squeak or Chirp Noise from Rear Split Folding Seat Back or Seat Cushion While Driving (Install Squeak Reduction Tape) - (Aug 28, 2007)


Subject: Squeak or Chirp Noise From Rear Split Folding Seat Back or Seat Cushion While Driving (Install Squeak Reduction Tape)


Models: 2005-2008 Chevrolet Cobalt

2005-2006 Pontiac Pursuit (Canada Only)

2007-2008 Pontiac G5




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This bulletin is being revised to include the 2008 model year, add a procedure and update the warranty information. Please discard Corporate Bulletin Number 07-08-50-001 (Section 08 - Body and Accessories).


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Condition
Some customers may comment on a squeak or chirp noise coming from the rear seat area while driving.

Cause
The cause of the noise may be the rear split folding seat back pivot pins and the seat cushion retainers contacting the seat brackets.

Correction
Determine and isolate the source of the noise with squeak reduction tape using the steps below.

Test drive the vehicle and verify that the noise is coming from the rear seat area.
Park the vehicle.
Open the trunk.
Pull the two rear release handles located in the center of the trunk.
Tip
Folding the rear seat back assemblies down while road testing will help determine if the seat back pivot pins are causing the noise.

Fold down the right and left rear seat back assemblies.



Tip
Removing the rear seat cushion while road testing will help determine if the retainers are causing the noise. Refer to Rear Seat Cushion Replacement in SI.

Inspect the two rear seat cushion retaining hooks for a witness mark (1). The hooks may be contacting the bracket.
Continue to test drive the vehicle.
If the noise is gone, proceed to the next step. If the noise is still present, determine the source of the noise. Refer to Squeaks and Rattles in SI.



Tip
Use of a screwdriver to release the seat back pin from the seat back pivot retaining bracket (1).

Remove the right and left rear split seat back assemblies from the vehicle. Refer to Split Folding Seat Back Replacement in SI.
Cut ten pieces of 3M™ Squeak Reduction Tape, P/N 06356, or equivalent, to 10 mm (0.39 in) width by 30 mm (1.18 in) length.



Install four pieces of the tape to the right rear seat back pivot bracket:
• The first piece of tape (1) is located at the twelve o'clock position.

• The second piece of tape (2) is located at the four o'clock position.

• The third piece of tape (3) is located at the six o'clock position.

• The fourth piece of tape (4) is located at the nine o'clock position.

Repeat Step 11 for the left rear seat back pivot bracket.



Install two pieces of 3M™ Squeak Reduction Tape, P/N 06356, or equivalent around the left and right rear seat cushion retainers (1). Refer to Rear Seat Cushion Replacement in SI.
Install the left and right rear seat back assemblies. Refer to Split Folding Seat Back Replacement in SI.
Install the rear seat cushion back into the vehicle and lock the seat cushion retaining hooks.
Raise the two rear split seats up into position and push back until a click is heard.
Important: Check for proper routing of the rear seat belts. Push and pull forward on the seat backs to verify the seats have locked into place.

Tip
If the seat doesn't lock into place, check the rear seat back striker to the rear seat back latch assembly for proper alignment and adjust.

Verify that the noise has been eliminated.
Parts Information
3M™ Squeak Reduction Tape, P/N 06356, can be purchased locally from automotive paint specialists.

Part Number
Description
Material Allowance

06356
3M™ Squeak Reduction Tape
$4.45 (U.S.)

$4.70 (Canada)


Warranty Information
For vehicles repaired under warranty, use:

Labor Operation
Description
Labor Time

C9783*
Apply Squeak Reduction Tape to Both Rear Seat Back Pivot Brackets
0.7 hr

Add
Apply Squeak Reduction Tape to Both Rear Seat Cushion Retainers
0.1 hr

*This is a unique labor operation for bulletin use only. It will not be published in the Labor Time Guide.

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


© 2009 General Motors Corporation. All rights reserved.
 

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Rattling noises when windy or driving against the wind. Noise sounds like it could be coming from behind dash / engine bay / fender areas. - If you have the stock hub caps this is where the noise is coming from. Took the dealer 3 times looking at the vehiche when i first got it to figure it out. Had to put double sided tape around the outside edge of the caps to keep them from flopping around. Eventually just got real rims and problem solved.

Clunking noise when driving over bumps - Control arm bushing, dealership replaced with OEM parts several times before warranty period was up. Afterwards I upgraded to the moog bushings which seem be work a lot better. Sway bar linkages can also be the result of this noise.
 

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I got Powell LCA bushings. The noise just got worse!! lol
 

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Discussion Starter #19
LOL so we're all agreed. If you silence one noise you'll just hear 10 other noises.

But I do plan to do this one because my back seat backs squeak like a mofo.
 
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