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

Reply
 
LinkBack Thread Tools Display Modes
Old 01-04-2016, 03:02 AM   #1
Registered User
 
scottvd's Avatar
 
Join Date: Dec 2013
Location: Oakdale, CA
Posts: 153
Garage
Noise from back wheel

Long time no post!

There is a noise coming from the passenger rear wheel of my car. It's only there after I've driven the car for awhile and things warm up. It sounds like rubber rubbing against plastic, it's not metallic sounding at all. I thought it was the CV joints since all four boots are torn; I replaced both complete axles and the exact same noise is still there.

Could this be the wheel bearing? I can't imagine what would make this weird noise, the noise is patterned with the rotation of the wheel. Any suggestions to diagnose this more? TIA!

Scott

__________________
2004 Boxster S
scottvd is offline   Reply With Quote
Old 01-04-2016, 04:49 AM   #2
Registered User
 
oc-boxster's Avatar
 
Join Date: Feb 2012
Location: anaheim california
Posts: 480
Wheel bearing
oc-boxster is offline   Reply With Quote
Old 01-04-2016, 04:52 AM   #3
Registered User
 
Oggie's Avatar
 
Join Date: Jul 2015
Location: Perth, Western Australia
Posts: 38
Yes, most likely wheel bearing.
__________________
'99 base Boxster (Arena Red Metallic/Savanna Beige)
'02 911 Carerra Cabriolet (Arctic Silver/Metropole Blue)
Oggie is offline   Reply With Quote
Old 01-04-2016, 05:41 AM   #4
Registered User
 
Chuck W.'s Avatar
 
Join Date: Sep 2008
Location: Agoura Hills (LA) So.Cal.
Posts: 1,573
Hey Scott.... welcome back to the madness........

Three years ago I got what sounds like the same noise you're getting. I could hear it when I hit about 30 MPH. And, at the time my Boxster only had 21,000 miles on it. The bearings are not that expensive. At the time I paid under $60 each for the two rears from Sunset Porsche. The labor cost is a tab expensive. I looked at all the threads on DIY and convinced myself that my Indy should do this for me.

Here are 63 threads on the subject for your reading pleasure;

986 Forum - for Porsche Boxster Owners and Others - Search Results
__________________
1995 Porsche C4 Cab

2016 BMW M2, 6 Speed LBB - ED 7/2016
1997 993 Cab - Sold; 1997 993 Turbo - Sold
2001 Boxster S - Original Owner - 30K Miles -SOLD
Chuck W. is offline   Reply With Quote
Old 01-04-2016, 08:09 AM   #5
Registered User
 
Join Date: Apr 2011
Location: Alabama
Posts: 467
Agreed - very likely wheel bearing.
They are a common failure item for this model. Not necessarily a unique problem for Porsche, however, as the same one is used for certain models of BMW and Mercedes, which may explain why the part itself is not expensive.
Someone noted that the same part was used on the 914, with tires half as wide and a whole lot less stress on the bearing...
The bearing size was increased in later models to account for this.
My first one failed after 95K miles; maybe I'm not stressing the bearings enough
This can be accomplished as a DIY, but I don't recommend it unless you are already a pretty decent mechanic with all the tools. The juice ain't worth the squeeze.
The good news is you can likely drive it without much immediate danger. If you are like most of us, you will decide you can't stand the noise long before your bearing fully implodes.
BrokenLinkage is offline   Reply With Quote
Old 01-04-2016, 11:35 AM   #6
Registered User
 
Join Date: Oct 2014
Location: SE Ma
Posts: 261
Scott, if you replaced the axles yourself you should have noticed that the wheel hub was somewhat loose on that side after the axle shaft came out of it. Could it just be the dust shield or something in the E brake?
Deadeye is offline   Reply With Quote
Old 01-04-2016, 01:23 PM   #7
Registered User
 
scottvd's Avatar
 
Join Date: Dec 2013
Location: Oakdale, CA
Posts: 153
Garage
Thanks for the replies- I need to take the car for a ~350 mile journey in less than 48 hours so I ended up taking this to my local mechanic. This will be the first repair I haven't done myself :/ Don't have the time necessary nor the press. $700-800 for the single wheel out the door parts/labor. I feel like less of a man now!! (:

Deadeye-
I didn't notice the hub was loose, the job did go well into the night and the side in question was my second side, so I was moving much quicker in the work. I can't say that I really examined the hub much. The noise is similar to what Chuck W is describing, where it's not present at all times, only once things warm up. I believe it's just beginning to fail, if it were related to the ebrake I'd expect it present at all times. Thanks for the suggestions though.
__________________
2004 Boxster S
scottvd is offline   Reply With Quote
Old 01-04-2016, 01:31 PM   #8
Registered User
 
Join Date: Jul 2004
Location: Houston, Texas
Posts: 7,240
Best way to check out your bearings is as follows:

Put the back end of the car up on jack stands and chock the front wheels.
Grab tires at 12 and 6 and see if there's play.
Grab tires at 9 and 3 and see if there's play.

If you don't feel any play, try spinning the wheels with the motor out of gear and in neutral.

My bearings were just barely going out and the only way to hear the noise was for me to get in and start the motor and put it in gear and spin the wheels up to 30 mph and then cut the motor so my tech could listen to the spinning wheels up close...
__________________
'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 01-06-2016, 09:40 AM   #9
Registered User
 
scottvd's Avatar
 
Join Date: Dec 2013
Location: Oakdale, CA
Posts: 153
Garage
Just as an update the bearing was totally shot- according to the mechanic the original bearing had failed in the past and damaged the hub, a new bearing was replaced in the damaged hub and that caused this second bearing to prematurely fail. He was able to order a new hub and still meet my deadline of noon today, awesome! Hub, bearing, labor out the door is $925.
__________________
2004 Boxster S
scottvd is offline   Reply With Quote
Old 01-06-2016, 10:38 AM   #10
Registered User
 
Join Date: Jul 2004
Location: Houston, Texas
Posts: 7,240
That's a VERY good price! Good for you!
__________________
'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 01-06-2016, 05:32 PM   #11
Registered User
 
Join Date: Oct 2014
Location: SE Ma
Posts: 261
Common occurance is the hub is damaged when the old bearing is pressed out or when the new one is pressed in. Heat and cold are your friends in this operation.

Deadeye 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 10:36 AM.


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