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Suspension cluncking noise??

 
Old 04-14-2019, 07:28 PM
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GBennett
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Default Suspension cluncking noise??

I have a 08 z51 with an odd noise coming from the rear of the car. Only happens when I hit even minor bumps. With the car off I can push down on the rear corner and bounce the car to even make the sound. I've jacked the car up and pulled back and fourth on the sway bar and it doesn't seem to be loose or worn. I'm just curious if it could still be the end links or would it be shocks? This is very aggravating. Thanks!
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Old 04-14-2019, 07:38 PM
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919cw313
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Have you checked the axle nuts?
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Old 04-14-2019, 07:40 PM
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cadyshac
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I just changed the sway bar links on my '05 Z51 and it eliminated all suspension noise. My old links were not falling apart but it was very easy to move them around after I removed them. I replaced them with Moog greasable links that I got from Rockauto. You might try disconnecting one of yours and seeing how easily the studs move around in the sockets.
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Old 04-14-2019, 07:44 PM
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Originally Posted by cadyshac View Post
I just changed the sway bar links on my '05 Z51 and it eliminated all suspension noise. My old links were not falling apart but it was very easy to move them around after I removed them. I replaced them with Moog greasable links that I got from Rockauto. You might try disconnecting one of yours and seeing how easily the studs move around in the sockets.
Originally Posted by 919cw313 View Post
Have you checked the axle nuts?
I haven't tried the axle nut? I will check that as well.

I'll give that a try on the sway bar end links and check them. It's very possible it's that, the car does have 90000 miles. That also makes me think it's shocks a s well.
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Old 04-14-2019, 07:46 PM
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Originally Posted by 919cw313 View Post
Have you checked the axle nuts?
Wouldn't the axle nut make a noise side to side?
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Old 04-14-2019, 08:13 PM
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cadyshac
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My car is '05 and has 51K miles, pretty sure my sway links were original. I didn't mention axle nuts but I also recently changed them, the passenger side was loose. The noise I was getting from the axle nut was a "clicking" when I would release the clutch in 1st or reverse and the new nuts did eliminate that noise. The nuts cost about $6.50 from a local GM dealer.
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Old 04-14-2019, 08:17 PM
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Plan C
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I'd be inclined to suspect the end links first, axle nuts second, and shocks third.... You are on the right track! Please let us know what you ultimately find.
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Old 04-14-2019, 08:17 PM
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Originally Posted by cadyshac View Post
My car is '05 and has 51K miles, pretty sure my sway links were original. I didn't mention axle nuts but I also recently changed them, the passenger side was loose. The noise I was getting from the axle nut was a "clicking" when I would release the clutch in 1st or reverse and the new nuts did eliminate that noise. The nuts cost about $6.50 from a local GM dealer.
Ok thanks for the information! I'm going to try changing both the end links and axle nuts next weekend. Hopefully that fixes the issue.
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cadyshac (04-14-2019)
Old 04-15-2019, 06:50 AM
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I had a similar noise and found it to be the adjusters binding, a squirt of WD was the quick fix.
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Old 04-15-2019, 11:33 AM
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End links. I replaced all four of mine and noise is gone.
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Old 04-15-2019, 11:47 AM
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05 Wreck
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Originally Posted by RichKiss View Post
End links. I replaced all four of mine and noise is gone.
I agree, 28k on my 05 and factory end links were shot, no resistance at all.
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cadyshac (04-15-2019)
Old 04-15-2019, 12:30 PM
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Originally Posted by GBennett View Post
Wouldn't the axle nut make a noise side to side?
Mine was either in reverse or coming to a stop, straight line.

Originally Posted by cadyshac View Post
...nut was a "clicking" when I would release the clutch in 1st or reverse and the new nuts did eliminate that noise...
You're right, it was more of a click for me too. Probably not his issue but might as well be taken care of.
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Old Today, 11:51 AM
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GBennett
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So replaced the end links and still have the noise. I'm thinking ball joints maybe? Anyone ever had that issue.
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Old Today, 05:07 PM
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When you said you pushed down on the fender, it can only mean one thing, shocks. Not
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