Clunk under or around the suspension
November 10th, 2017, 8:32 AM
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Clunk under or around the suspension
I get a clunk under the suspension when I go over bumps or small road abnormalities. I have a 2008 Express Van (15 Passenger). I have 206K miles and it started about 8K miles ago. It does not appear to be impact driving. At high speed, I rarely notice it.
November 10th, 2017, 11:39 AM
#2
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Does it bounce a lot? Maybe your shocks are worn out and it is bottoming out causing the sound. It could also be any of the suspension parts that are worn out.
November 10th, 2017, 1:34 PM
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No, it does not bounce. It started a couple months after I had the Transmission replaced. It happens more on minor road bumps and it is definitely a "clunking" sound.
March 18th, 2018, 2:29 AM
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I chased a similar problem on my 1994 G30, but only on the passenger side. It was a "chucking" sound on ripples in the road, especially under light braking.
I inspected almost every part of the front suspension; I couldn't check the lower control arm bushings because I didn't have a way to safely remove the springs. I replaced the lower ball joints and all of the steering linkage. The ball joints were "floppy", the idler arm had what I considered excessive play, the rest of the linkage was OK, but I figured I might as well replace it all (not much more $). The upper control arm bushings were tight and smooth, as were the upper ball joints.
End result? The van steered more precisely, but the noise was still there.
I now have 2 new lower control arm shaft assemblies to be installed shortly. I will report back here with the results.
I inspected almost every part of the front suspension; I couldn't check the lower control arm bushings because I didn't have a way to safely remove the springs. I replaced the lower ball joints and all of the steering linkage. The ball joints were "floppy", the idler arm had what I considered excessive play, the rest of the linkage was OK, but I figured I might as well replace it all (not much more $). The upper control arm bushings were tight and smooth, as were the upper ball joints.
End result? The van steered more precisely, but the noise was still there.
I now have 2 new lower control arm shaft assemblies to be installed shortly. I will report back here with the results.