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GL 450 front suspension mystery

 
Old 01-26-2019, 10:34 PM
  #26  
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Sometimes you gotta REALLY push/pull hard to get a joint to make a noise by hand. I've seen mechanics use a long breaker bar as leverage while they look/feel for the slightest movement.
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Old 01-28-2019, 10:24 AM
  #27  
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Have you put a pair of chassis ears on the front suspension components? That will isolate the source of the knock and allow you to identify it.

Also, Arnott struts may ride well but I suspect they start failing internally much quicker than the OEM ones - one failure mode being a audible knock or clunk.
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Old 01-28-2019, 11:10 AM
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Originally Posted by Max Blast View Post
Have you put a pair of chassis ears on the front suspension components? That will isolate the source of the knock and allow you to identify it.

Also, Arnott struts may ride well but I suspect they start failing internally much quicker than the OEM ones - one failure mode being a audible knock or clunk.
I haven't tried Chassis Ears yet. I'll give it try though.

If the Arnott struts failed then they were DOA since the clunking started immediately after they were installed.
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Old 01-28-2019, 11:38 AM
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Originally Posted by DrMel View Post
I haven't tried Chassis Ears yet. I'll give it try though.

If the Arnott struts failed then they were DOA since the clunking started immediately after they were installed.
Well, unless you loosened anything else when putting these in, I'd say you've narrowed down the list of suspects to those struts.
Yours might have been DOA - mine began knocking around 20k miles but ride just fine.

I've been in contact with Arnott reps and they tacitly acknowledge a lower service life than OEM, which is why their warranty is very generous. (As long as you can provide proof of purchase).

Good luck, I'd start with miking the struts up and going for a short slow speed drive.
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