2008 Suspension Issue?
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Joined: Mar 2011
Posts: 50
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From: Texas
2008 Suspension Issue?
Driving to work this morning I herd deep knocks when taking hard left turns.
Car only has 38k and most of it has been highway miles.
I just had the rear driver side shock assembly replaced because of a bad censor. But i'm fairly certain this noise is coming from one of the front mounts.
Either way I've been having a ton of issues since I brought it out this spring with a transmission pan leak, (needed a new seal) and a ride control issue where the rear shock assem. needed to be replaced (under GMPP)
This will be the third time to the dealership in march alone...
Car only has 38k and most of it has been highway miles.
I just had the rear driver side shock assembly replaced because of a bad censor. But i'm fairly certain this noise is coming from one of the front mounts.
Either way I've been having a ton of issues since I brought it out this spring with a transmission pan leak, (needed a new seal) and a ride control issue where the rear shock assem. needed to be replaced (under GMPP)
This will be the third time to the dealership in march alone...
Burning Brakes
Joined: Mar 2012
Posts: 836
Likes: 43
From: Killeen Texas
2008
I have an '08 too. I have done a bit of research into this. I heard a sound too while turning. It's hard to tell where its comming from because of the acoustics of the car. I have narrowed it down to: Axle Nut needs to be torqued, Swaybar end links, Rear End Diff Fluid needs to be replaced with one w/a special additive or wheel drive shaft nut. I am taking it in tommorow to have them check all of these things. I want that sound gone.
Safety Car
Joined: May 2011
Posts: 3,582
Likes: 46
From: va
Ive dealt with the issue by going through 3 sets of endlinks, 2 sets of axle nuts, 2 sets of sway bar bushings, having the front brakes serviced, and retorquing everything attached to the subframe/suspension repeatedly. It wasnt until I had the control arm bushings replaced that the noise went away.
Have a tech test the entire car out for noise to pinpoint exactly whats going on. Going back ten times to fix the same problem is never fun and can get costly!
Have a tech test the entire car out for noise to pinpoint exactly whats going on. Going back ten times to fix the same problem is never fun and can get costly!
_Sloth Whisperer_
Joined: Jul 2008
Posts: 3,369
Likes: 9
From: Malaysia Air Flight 370
I would agree with the CA bushing. The endlinks can knock too, as can a few other things. But if, as you describe, the knock is substantially louder than an end-link should be then it stands to reason it's coming from a much more load-bearing joint- i.e. CA bushing.
I know this sounds like a stretch, but if you know anybody with a GoPro, borrow it and mount it somewhere along the chassis (out of harms way obviously), orient it towards each suspected joint, and take a drive. The noise you're hearing, if so severe, should happen in conjunction with a visible movement from something, somewhere. I only suggest this because it's often still too difficult to reproduce the movement by hand when the car is static.
I know this sounds like a stretch, but if you know anybody with a GoPro, borrow it and mount it somewhere along the chassis (out of harms way obviously), orient it towards each suspected joint, and take a drive. The noise you're hearing, if so severe, should happen in conjunction with a visible movement from something, somewhere. I only suggest this because it's often still too difficult to reproduce the movement by hand when the car is static.
