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pontifex4's Avatar
 
Join Date: Oct 2008
Location: Ontario, Canada
Posts: 379
How do I figure out which bushing is bad?

I've posted this elsewhere, too, but I'm hoping for some advice:

I hear an increasingly loud metal bang from the right rear when I drive on roads with sharp bumps. It's only on the right side, and only over sharp bumps, like expansion joints or medium-sized cracks in the pavement and pot holes. The right rear also feels as though it "hangs up" on these bumps, causing a slight shudder.

Obviously, I'm only able to hear it while driving the car, but I'm guessing it's a suspension bushing. Can anyone explain how I would go about determining which one?

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Charlie
'99 996 C2 6 speed - Arctic Silver
Old 09-08-2009, 04:55 PM
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Blown shock, or a sway bar bushing. Shock seems more likely, but the sway bar bushes are very easy to inspect.
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» 1987 924S Turbo - Got Boost? «

"DETERMINATION. Sometimes cars test us to make sure we're worthy. Fix it." - alfadoc
Old 09-08-2009, 08:29 PM
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Okay, I'll have a look at both.

On Rennlist, it was suggested that I check the tension on the bolts holding the shock in, and I will do that, too.

More generally, though, is there a way to tell how bad a particular, largely hidden bushing is? Can you put a jack under it and measure, for example, or is there some other mechanic's trick?

Thanks for the help,

Charlie.
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Charlie
'99 996 C2 6 speed - Arctic Silver
Old 09-08-2009, 09:01 PM
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Try to get a pry bar & check for excessive motion at all joints. Check muffler mounts, too even tough they're on driver's side.
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drew1

wife has 924 turbo
Old 09-09-2009, 04:35 AM
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Okay. Can do. I suppose I could just compare how much motion I get from the pry bar on one side to the other.

I'll check the muffler, too.

Thanks for the help!

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Charlie
'99 996 C2 6 speed - Arctic Silver
Old 09-09-2009, 05:57 AM
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