Rear Suspension Squeak - What Part Is This?

[Burrito]

I'm getting a squeak/creak sound from the passenger side rear suspension. I've located the squeak, but don't know what part it is. I just got the suburban not long ago and it is my first. I'm more familiar with pickup truck type suspensions. It sounds like there are some bushings that are worn out and there's metal to metal contact. It makes the noise when the vehicle is coming to a stop. I can also get it to squeak loud when the vehicle is parked, and in park, and I rock it back and forth. It squeaks when it gets to the forward most point of the slack in the driveline, and also on the backward most part. I tried to spray some silicone where the bolt is, but that didn't help. Do yall think that if I changed the bushings it would take care of the issue? If so, does anyone have a part number?

 

[MS3DALE]

Thats the rear axle lower control arm,post me the VIN and I'll give you the correct part number.

[Burrito]

I'll work on getting the VIN. In the mean time, will this be a fairly simple project I can handle myself, with the help of a friend? I'm guessing I'll just lift the rear end and then remove the lower control arm and replace the bushings? Will the bushings slip right out and in? Or will the removal and installation require special tools, like a press? Should I go ahead and replace both the passenger and driver side, or just the passenger side which is making the noise?

[MS3DALE]

Its looks like a fairly easy job,and you must buy the complete arm to get the bushings,they are not available separately.

I personally would buy both sides just to be safe.

[Burrito]

Rats! I was trying to keep this cheap. In that case, would it make sense to get an aftermarket arm? Clearly the OEMs work, but I wonder if the ride would improve with more of a "performance" part installed.

 

Alternatively, I guess I could just not let the noise bother me and keep it as is. Or is it likely a worn out bushing could cause stress on other rear suspension parts on the passenger side? Don't want a small problem to develop into a big one.

[desrtrat]

try here. you may be able to get just the bushings

 

http://www.energysuspensionparts.com/

 

good luck

[MS3DALE]

There ya' go,you could try them^^^

On your other question,I would change it,you don't want a small issue to cause something else,then again I'm anal when it comes to noises and maintenance.

[Burrito]

Update:

 

Yesterday, I crawled under the suburban with a can of WD-40 and drenched the connection points of each end of the control arms. Squeaking stopped. I guess the lube was able to penetrate enough to remedy the problem. But I won't be surprised if the noise comes back at some point. Hopefully the bushings aren't shot, but instead there was just a dry contact point.

[ChevyTech77]

The noise will come back. Replace the arms as necessary. See PIT3751B.

[MS3DALE]

#PIT3751B: Squeak or Creak Type Noise on Accel, Decel, Over Bumps or Garage Shifts - keywords arm body bolt clunk control driveshaft floor flame front knocking loose lumber mount pan pop propshaft rear shift - (Jun 19, 2006)

 

 

Subject: Squeak or Creak Type Noise on Accel, Decel, Over Bumps or Garage Shifts

 

 

Models: 2005-2006 Cadillac Escalade, Escalade ESV, Escalade EXT

 

2005-2006 Chevrolet Avalanche, Suburban, Tahoe

 

2005-2006 GMC Yukon, Yukon XL, Yukon Denali, Yukon Denali XL

 

2005-2006 HUMMER H2

 

Built after May, 2005.

 

 

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

 

Condition/Concern:

Owners may comment of a creak or squeak type noise on acceleration, deceleration, over bumps, turns or garage shifts. This noise may sound like it is from the front or the rear of the vehicle. This noise could be coming from the rear lower control arm bushings. The squeak is caused by relative movement of the bushing to the control arm flange.

 

THIS NOISE CAN SOUND LIKE IT IS COMING FROM THE PROPSHAFT. DO NOT REPLACE THE PROPSHAFT FOR THIS CONDITION.

 

Note: This noise may be felt or heard using chassis ears like it is coming from along the entire frame side rail or body mount areas. In some cases the noise may sound like loose lumber while driving on a minimally rough road surface while driving straight or turning.

 

Recommendation/Instructions:

To help isolate the noise to the control arm bushing spray penetrating oil (example WD-40 or equivalent) on the bushing to the control arm area. If the noise is eliminated or reduced, replace the control arm assembly.

 

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.