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

Reply
 
LinkBack Thread Tools Display Modes
Old 07-09-2013, 03:46 PM   #1
Registered User
 
evo-r's Avatar
 
Join Date: Mar 2013
Location: Long Island, NY
Posts: 378
Question Rear road noise louder with speed? Not tires!

Ever since I bought my 2003 Boxster Tip base with 78k miles this past March I've noticed a noise very similar to tire road noise and will get louder with speed. I know it's not tire noise because I just replaced all 4 tires and still the same noise. It seems to be coming from the rear passenger side but it's hard to pin point. The car drives and shifts fine. Any idea?

__________________
His: 2003 Boxster & 2008 MDX
Hers: 2011 Golf TDI
evo-r is offline   Reply With Quote
Old 07-09-2013, 03:52 PM   #2
Registered User
 
woodsman's Avatar
 
Join Date: Feb 2013
Location: Land of naught
Posts: 1,302
could be a wheel bearing
__________________
Death is certain, life is not.
woodsman is offline   Reply With Quote
Old 07-10-2013, 09:22 AM   #3
Registered User
 
evo-r's Avatar
 
Join Date: Mar 2013
Location: Long Island, NY
Posts: 378
Quote:
Originally Posted by woodsman View Post
could be a wheel bearing
Thanks! Could it also be something within the differential?
__________________
His: 2003 Boxster & 2008 MDX
Hers: 2011 Golf TDI
evo-r is offline   Reply With Quote
Old 07-10-2013, 02:08 PM   #4
Track rat
 
Topless's Avatar
 
Join Date: Nov 2006
Location: Cucamonga CA
Posts: 3,687
Garage
Wheel bearing, pinion bearing, or CV joint most likely. Get her up on a lift and start poking around.
__________________
2009 Cayman 2.9L PDK (with a few tweaks)
PCA-GPX Chief Driving Instructor
Topless is offline   Reply With Quote
Old 07-11-2013, 09:04 AM   #5
Registered User
 
Join Date: Aug 2010
Location: Florida
Posts: 156
I had a similar issue last year on a 2002S w less than 50K mi. It was the rt rear wheel bearing. I figured if one was going bad the others would too
Replaced all 4. Very quiet now.
opus69 is offline   Reply With Quote
Old 07-11-2013, 09:12 AM   #6
Registered User
 
evo-r's Avatar
 
Join Date: Mar 2013
Location: Long Island, NY
Posts: 378
Thanks guys and exactly how does a bad wheel bearing sounds like?
__________________
His: 2003 Boxster & 2008 MDX
Hers: 2011 Golf TDI
evo-r is offline   Reply With Quote
Old 07-11-2013, 09:13 AM   #7
Registered User
 
Join Date: Aug 2006
Location: Sweden
Posts: 98
If the noise is increasing when turning it is most likely a wheel bearing that is damaged. This is the easiest way to diagnose it. Just do some long sweeping turns that puts some load on each bearing and listen. If one bearing is gone there is no reason to replace all of them as long as they are silent.
spongebob is offline   Reply With Quote
Old 07-12-2013, 04:19 AM   #8
Crazy rancher with a 986
 
Southtxfarmer74's Avatar
 
Join Date: Apr 2013
Location: Gonzales, TX
Posts: 19
Garage
My 03 S was making similar noises which turned out to be a wheel bearing and bad CV joints. Jones Autowerks in San Antonio, TX did the repair. For about $970 I got two new complete axle assembly's and two new wheel bearings. Car is quiet now.

Last edited by Southtxfarmer74; 07-12-2013 at 01:31 PM.
Southtxfarmer74 is offline   Reply With Quote
Old 07-12-2013, 04:23 AM   #9
Registered User
 
Join Date: Jun 2007
Location: Maryland
Posts: 222
In my experience, failing wheel bearings sound exactly like tire noise. It also took a tire change for it dawn on me the bearings were shot.
Wret is offline   Reply With Quote
Old 07-12-2013, 08:42 AM   #10
Registered User
 
evo-r's Avatar
 
Join Date: Mar 2013
Location: Long Island, NY
Posts: 378
Thanks! What's the typical parts & labor cost to replace 1 wheel bearing at an indy?
__________________
His: 2003 Boxster & 2008 MDX
Hers: 2011 Golf TDI
evo-r is offline   Reply With Quote
Old 07-12-2013, 08:46 AM   #11
Registered User
 
Join Date: Jun 2007
Location: Maryland
Posts: 222
The part is pretty cheap; $50-$100. They'll pobably get you for about four hours labor though, so you're probably in the $500 range.
Wret is offline   Reply With Quote
Old 07-12-2013, 09:15 AM   #12
Certified Boxster Addict
 
Join Date: Nov 2010
Location: Los Angeles
Posts: 7,643
Or you can do it all at once and not have to worry about it for another 100,000 miles: two new rear wheel bearings, new pinion gear, new CV joints/boots + indy labor = $2,200.
__________________
1999 996 C2 - sold - bought back - sold for more
1997 Spec Boxster BSR #254
1979 911 SC
POC Licensed DE/TT Instructor
thstone is offline   Reply With Quote
Old 07-12-2013, 09:34 AM   #13
Registered User
 
Join Date: May 2013
Posts: 48
Wow wow wow!!! Something I see here a lot is a bit of a rush to the most expensive and "worst case scenario" fixes!

I had a similar problem after a service and it was some sound deadening that hadn't been replaced properly after the work. These clips can slip off in time and all it needs is a tidy up and recoup everything behind your seats & in rear trunk back down....

I'm not saying it is that but its cheap so try it first!
Whippy is offline   Reply With Quote
Old 07-12-2013, 04:34 PM   #14
Registered User
 
evo-r's Avatar
 
Join Date: Mar 2013
Location: Long Island, NY
Posts: 378
I'll just let the mechanic troubleshoot where the noise is coming from then I'll see if it makes sense. Will update once I get a chance to bring her to the shop. Thanks guys!
__________________
His: 2003 Boxster & 2008 MDX
Hers: 2011 Golf TDI
evo-r is offline   Reply With Quote
Old 07-12-2013, 07:13 PM   #15
Registered User
 
Join Date: Jun 2013
Location: Socal
Posts: 560
Quote:
Originally Posted by Whippy View Post
Wow wow wow!!! Something I see here a lot is a bit of a rush to the most expensive and "worst case scenario" fixes!

I had a similar problem after a service and it was some sound deadening that hadn't been replaced properly after the work. These clips can slip off in time and all it needs is a tidy up and recoup everything behind your seats & in rear trunk back down....

I'm not saying it is that but its cheap so try it first!






I'd say its replies with sound advice on these cars and the parts that wear causing such a noise that will be a better clue to their origin , than tales of shoddy workmanship .....

However , I too look at everything when chasing down noises as , as i am at the moment .
Wd40 and blu-tak are my best friends


PS : What about just fitting an eBay cat-back muffler system
Ian c is offline   Reply With Quote
Old 08-19-2013, 09:42 AM   #16
Registered User
 
evo-r's Avatar
 
Join Date: Mar 2013
Location: Long Island, NY
Posts: 378
So I brought the car to 2 different shops and one thinks it's some bearing in the differential and the other thinks it's the rear passenger wheel bearing. I'm thinking it's the rear passenger wheel bearing because when I sweep the car left and right I only hear the noise when I sweep to the left and the noise disappear when to the right.

Is it possible that in this case some bearing in the differential is bad as well?
__________________
His: 2003 Boxster & 2008 MDX
Hers: 2011 Golf TDI
evo-r is offline   Reply With Quote
Old 08-19-2013, 10:27 AM   #17
Registered User
 
woodsman's Avatar
 
Join Date: Feb 2013
Location: Land of naught
Posts: 1,302
As far as I know, those symptoms could be caused by either problem. I would think the differential repair would be in the $2-3000 range so to me it only makes sense to do the wheel bearing and hope for the best. A rear bearing at Suncoast or Sunset Porsche costs $60-65 and but it'll be far less in an industrial supply house which you could do if you're doing the job yourself; If so, it would be a good time to do the rear brakes, if needed.
__________________
Death is certain, life is not.
woodsman is offline   Reply With Quote
Old 08-19-2013, 10:36 AM   #18
Registered User
 
mountainman's Avatar
 
Join Date: Jun 2012
Location: Little Switzerland, north carolina
Posts: 551
Garage
Wheel bearing would be my guess. Had the same symptoms on mine and wheel bearing did the trick
mountainman is offline   Reply With Quote
Old 08-19-2013, 10:40 AM   #19
Registered User
 
Join Date: Jul 2004
Location: Houston, Texas
Posts: 7,240
Quote:
Originally Posted by evo-r View Post
So I brought the car to 2 different shops and one thinks it's some bearing in the differential and the other thinks it's the rear passenger wheel bearing. I'm thinking it's the rear passenger wheel bearing because when I sweep the car left and right I only hear the noise when I sweep to the left and the noise disappear when to the right.

Is it possible that in this case some bearing in the differential is bad as well?
A good way to isolate the problem is to jack up the back of the car (both sides), put it in neutral, leave the parking brake off, and rotate the wheel as you listen carefully to the source of the noise.

Another thing you can do while the back end is up in the air is grab the wheel and pull one side and then the other toward you, then the top of the tire and the bottom of the tire. If there's play and slop in the wheel, it's a wheel bearing.
__________________
'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 08-19-2013, 03:33 PM   #20
Registered User
 
Join Date: Aug 2007
Location: New Jersey
Posts: 691
Wheel bearing and/or broken axle.

Don't rule out a broken axle. Fairly common if you hit a NYC pothole...



/

__________________
SOLD - 2002 Boxster S - PSM, Litronics, De-ambered, Bird Bike Rack, Hardtop, RMS leak...
fatmike 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 03:20 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2020, 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