PSA: Oil filler neck o-ring "failure" - Page 2 - Subaru Impreza WRX STI Forums: IWSTI.com
STI Forum
Join
Start New Thread Create Account Advertise FAQ Members List Contact
PSA: Oil filler neck o-ring "failure"
PSA: Oil filler neck o-ring "failure"
Go Back   STI Forums > > > PSA: Oil filler neck o-ring "failure"
Reply
 
Thread Tools
Old 10-07-18, 08:05 PM   #11
blacknblue06STI
Account Inactive
Feedback Score: 0 reviews
 
Car: Black, 06' STI
Fav Mod: ACT Monolock
My Subaru Parts for sale

Join Date: Jun 2009
Location: Mass
blacknblue06STI has a spectacular aura aboutblacknblue06STI has a spectacular aura about
Default Re: PSA: Oil filler neck o-ring "failure"

Quote:
Originally Posted by Simon View Post
Great, thanks for this, I noticed a leak too and it seems to originate from the top of the engine on the driver side. I originally thought it could be the valve gasket cover or the intake AVCS solenoid but it did seem to come from the filler neck so I might try to replace this first. Here is a pic, do you guys agree this it might be the root cause ?

How common is that ?

Image Link

That is 100% a dried up o ring on the fill tube causing that film, mine looked the same on my 06.
blacknblue06STI is offline  
Likes 0 Dislikes 0
 
Reply With Quote
Sponsored Links
Advertisement
 
Old 10-08-18, 12:02 PM   #12
Simon
Advanced Contributor Level 5
Feedback Score: 0 reviews
 
Car: Black 2010 STI
My Threads
Posts: 582
My Subaru Parts for sale

Join Date: Sep 2009
Simon is on a distinguished road
Default Re: PSA: Oil filler neck o-ring "failure"

Yes, I replaced the filler tube today and could see a residue of oil post o-ring so I am 99.9% positive that this was the problem.

Thanks guys and OP, my gut feel was telling me it was coming from the filler but I just felt like it was pretty unlikely and was just bracing myself for a valve cover leak as it seems like that's what everyone talks about. The original post increased my confidence that it was the problem and made me remember that I had a spare

This was a much simpler fix

Last edited by Simon; 10-19-18 at 04:04 AM.
Simon is offline  
Likes 0 Dislikes 0
 
Reply With Quote
Old 10-14-18, 08:28 AM   #13
lupohki
Advanced Contributor Level 3
Feedback Score: 7 reviews
 
Car: DGM 08 STi
My Threads
Posts: 374
My Subaru Parts for sale

Join Date: Oct 2003
Location: Centreville, VA
lupohki is an unknown quantity at this point
Default Re: PSA: Oil filler neck o-ring "failure"

Thanks for the heads up on this. I was changing my spark plugs and saw the leak. Too bad it's a Sunday, so parts is closed .
lupohki is offline  
Likes 0 Dislikes 0
 
Reply With Quote
Sponsored Links
Advertisement
 
Old 10-14-18, 09:44 AM   #14
Leemanfor
Developing Advanced Mastery
Feedback Score: 0 reviews
 
Fav Mod: EFR 7163 Turbo
My Threads
Posts: 906
My Subaru Parts for sale

Join Date: Feb 2015
Location: Lochbuie, CO
Leemanfor has a spectacular aura aboutLeemanfor has a spectacular aura aboutLeemanfor has a spectacular aura about
Default Re: PSA: Oil filler neck o-ring "failure"

yeah. looks like mine has been leaking for awhile.
Leemanfor is offline  
Likes 0 Dislikes 0
 
Reply With Quote
Old 10-15-18, 08:42 PM   #15
itsm3ming
Developing Advanced Mastery
Feedback Score: 4 reviews
 
Car: Launch | STI
Fav Mod: Coming Soon
My Threads
Posts: 945
My Subaru Parts for sale

Join Date: Aug 2014
Location: VA
itsm3ming will become famous soon enough
Default Re: PSA: Oil filler neck o-ring "failure"

is this for all gens? or year specific?
itsm3ming is offline  
Likes 0 Dislikes 0
 
Reply With Quote
Old 02-26-19, 05:29 PM   #16
Parker
Delight Moderator
Feedback Score: 8 reviews
 
Fav Mod: Your mom
My Subaru Parts for sale

Join Date: Mar 2006
Location: GA
Parker is on a distinguished road
Default Re: PSA: Oil filler neck o-ring "failure"

I replaced this on my 06, back in 2014 so I can't tell you if it applies to all or not.
Parker is offline  
Likes 0 Dislikes 0
 
Reply With Quote
Old 08-25-19, 12:57 PM   #17
dash_martino
Becoming A Contributor
Feedback Score: 0 reviews
 
Car: Silver 04 WRX STi
Fav Mod: Actually buying the car
My Threads
Posts: 22
My Subaru Parts for sale

Join Date: Mar 2008
Location: NEPA
dash_martino is an unknown quantity at this point
Default Re: PSA: Oil filler neck o-ring "failure"

This thread was hugely helpful for me, thank you.
dash_martino is offline  
Likes 0 Dislikes 0
 
Reply With Quote
Sponsored Links
Advertisement
 
Reply

Thread Tools

Posting Rules
You may post new threads
You may 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 Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
List of UOA's (Used Oil Analysis)- find an oil that works! stretch 2.5 Liter/Litre Factory Motor 279 04-20-18 04:05 PM
Oil filler cap test? What do people look for? roninsoldier83 2.5 Liter/Litre Factory Motor 39 03-25-14 02:01 AM
Lets Talk Motor Oil It Is So Very Misunderstood Dspin_1080 2.5 Liter/Litre Factory Motor 44 01-12-12 05:14 AM
Oil consumption?? stiltd174 2.5 Liter/Litre Factory Motor 9 06-05-11 07:02 AM
Killer B Motorsport ULTIMATE OIL PICKUP $160 with... killerbmotorsport GD-Vendor Classified Ads 16 03-27-11 12:41 PM


New To Site? Need Help? More

All times are GMT -8. The time now is 06:14 AM.


Powered by vBulletin
Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Designed & Powered by Domain Architect
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.