Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions

Reply
 
LinkBack Thread Tools Display Modes
Old 07-18-2014, 03:33 PM   #1
Registered User
 
Porsche man's Avatar
 
Join Date: Feb 2014
Location: Gold Coast Australia
Posts: 41
Garage
Rear suspension noise

Hi all. I have a 2000 Boxster S with 80k on the clock. The car has developed a noise in the rear that occurs on smooth surfaces, eg concrete and at reasonably low speed, and when I run over a small bumps, say a cat's eye (reflective marker). The noise can be described as a kind of dull rattle. Suspect it is a worn bush on the rear suspension. I don't want to replace all the suspension components at the one time when it may not be necessary. Question is where do I start, and what suspension component from the experience of others is likely to wear out first ?

Porsche man is offline   Reply With Quote
Old 07-18-2014, 05:06 PM   #2
pjv
Registered User
 
Join Date: Oct 2010
Location: Melbourne Australia
Posts: 68
Garage
Likely to be the rear lower control arms. Mine wore out at about 80k km. I don't remember cat's eyes being enough to cause the rattle, but going over speed humps would cause a loud rattle from the back, which at first I thought might have been the soft-top frame bouncing in the back. It cost a bit to have them replaced, but I have seen on this forum that low cost arms are available and the job appears to be suitable for a DIY. Hope that helps.
pjv is offline   Reply With Quote
Old 07-20-2014, 11:11 AM   #3
Registered User
 
jcb986's Avatar
 
Join Date: Apr 2009
Location: Orlando
Posts: 1,266
Trailing arm. It's notorious for the rattle. Sounds like it's coming from behind the driver seat.
__________________
http://i768.photobucket.com/albums/x...6/PC120055.jpg

Old Hippie Young Heart
2000 S/3.2 Liter/Tiptronic/Boxster S Sport Package/Cruise Control/Slate Grey Metallic
Red Special Leather Interior/Red Floor Mats/Red Hand Painted Instrument Dials/Roll Bar/Windstop
Small Carbon Package/Leather Wrap Carbon Wheel/Center Console Exterior Color/Alum Carbon Shift Knob
AM/FM Radio w/CD Player & Changer/Digital Sound Package/18" Turbo Wheels/Wheel Caps w/Colored Crest
jcb986 is offline   Reply With Quote
Old 07-20-2014, 03:52 PM   #4
Registered User
 
woodsman's Avatar
 
Join Date: Feb 2013
Location: Land of naught
Posts: 1,302
Lower control arm - coffin shaped???
Trailing arm - the one running longitudinal FR to RR?

I've often read here that anti-roll bar links can cause a rattle...
Time to squeeze under her and wiggle and tug on stuff ? If you do this on a hoist with the suspension at full droop it will skew the results if not completely mask them. Check all mounting bolts with wrenches as well.
__________________
Death is certain, life is not.
woodsman is offline   Reply With Quote
Old 07-20-2014, 11:23 PM   #5
Registered User
 
Porsche man's Avatar
 
Join Date: Feb 2014
Location: Gold Coast Australia
Posts: 41
Garage
Thanks Guys for your posts. Gives me a few alternative parts to consider and check.
I notice that some of the non Porsche parts are considerably cheaper. Noted that lower control arms on Ebay are half the price of genuine Porsche parts.
Is there any non Porsche parts supplier that is reputable?
Can the trailing arm be re bushed or does one have to purchase a complete new arm?
Cheers
Porsche man is offline   Reply With Quote
Old 07-21-2014, 05:37 AM   #6
Registered User
 
dagdisco03's Avatar
 
Join Date: Jul 2012
Location: CT, USA
Posts: 104
Garage
The long trailing arm is the one most people seem to have the issue with. I also have a 2000 S but with 117K on the clock and I have the same rattle. I did buy the trailing arms but have not had a chance to install them yet. From what I've read I don't think you are going to find anything from trying to feel play in any of the parts by hand. I know in my case I don't see or feel anything move but it rattles me crazy over the small bumps like 5 mph into a parking garage always rattles and drives me nuts but realy do I hear anything at full road speed.
__________________
2000 Boxster S
dagdisco03 is offline   Reply With Quote
Old 07-21-2014, 07:48 AM   #7
Registered User
 
Join Date: Jul 2004
Location: Houston, Texas
Posts: 7,236
Be careful buying cheaper parts off eBay. There's a bunch of inferior parts being sold by sellers like DeutchParts out of Germany that are just crap.

Vertex Auto has some really good aftermarket control arms (all three actually) with poly bushings that will last a long time, and they discount them heavily if you send back your old ones so they can rebuild them and sell them to the next guy.

I concur that it's probably your trailing arm bushing going out, but it might be a drop link as well (they're cheap and easy to replace).
__________________
'97 Boxster (Black Hole for 42,000 Dead Presidents and counting) - 122k
New motor, transmission, suspension, and on and on and on it goes...
RandallNeighbour is offline   Reply With Quote
Old 07-21-2014, 04:33 PM   #8
Registered User
 
Porsche man's Avatar
 
Join Date: Feb 2014
Location: Gold Coast Australia
Posts: 41
Garage
Thanks Guys. Your posts have been a great help. Just the information I was after.
Vertex parts seem to be the way to go Prices seem to be on the right side even allowing
return freight from Australia.
Thanks again for your help.
Chas
Porsche man is offline   Reply With Quote
Old 07-22-2014, 06:38 AM   #9
Registered User
 
Giller's Avatar
 
Join Date: Jul 2014
Location: Listowel, Ontario, Canada
Posts: 1,120
Hey - I have this same thing, sounds like marbles rolling around back there at really low speeds. Been told my rear control arm has 1/64th play....how serious is this as an issue to get fixed? The noise is annoying...but is it something that needs done today or tomorrow or okay to wait some time? I'm not doing the fix myself - and have heard the repair is extremely expensive for this??

Giller is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 11:27 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page