Replacing pcv valve - Subaru Impreza WRX STI Forums: IWSTI.com
STI Forum
Join
STI Products
Start New Thread Create Account Advertise FAQ Members List Contact
Go Back   STI Forums > IWSTI Lounge > How-To / Install > Replacing pcv valve
Welcome to IWSTI - The world's largest Subaru Impreza WRX STI forum!
Welcome to the IWSTI.com Subaru Impreza WRX STI forum.

You are currently viewing IWSTI.com as a guest, which limits your ability to access discussions, ask technical questions, and learn more about the Subaru Impreza WRX STi models. Join for free today and unlock full access to post topics, communicate privately with other members (PM), respond to polls, share content, and access many other special features. Join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see this welcome message.
Like Tree2Likes

Reply
 
Thread Tools
Old 03-23-09, 05:53 AM   #1
Advanced Contributor Level 4
Feedback Score: 1 reviews
 
Car: 04 Subaru WRX STi
Fav Mod: Fujitsubo!!!!!!!!
My Threads
Posts: 452
My Subaru Parts for sale

Join Date: Nov 2006
Location: Québec
Rennes is on a distinguished road
Default Replacing pcv valve



Tools needed:


PLEASE UNDERSTAND THIS: the PCV valve is NOT on the recommended subaru maintenance. I don't understand why people would want to change it.

The way to know if a PCV valve is working correctly, you shake it and you should hear it "rattle".
YouTube - pcvvalve
http://www.youtube.com/v/http://www.youtube.com/watch?v=ss6Rcoc9_NQ

Brief explanation of the PCV valve system:


Start by removing these 3 10mm bolts


Remove both 12mm bolts and watch out for the gasket behind the BPV!


Remove the clamps using your flathead screwdriver.


remove this 12mm bolt


other side, another 12 mm bolt.


Remove the coupling from the turbo using the flathead screwdriver.


Push the intercooler back and it should pop out.


The green circle is the PCV valve to be changed.


Reinstall everything and you are done!


Last edited by Rennes; 03-23-09 at 01:30 PM.
Rennes is offline   Reply With Quote
Old 03-23-09, 06:00 AM   #2
Advanced Contributor Level 3
Feedback Score: 3 reviews
 
Car: 06 Aspen White STI
Fav Mod: Dom3xtr
My Threads
Posts: 341
My Subaru Parts for sale

Join Date: Mar 2006
Location: ABQ, NM
jasonlee4180 is on a distinguished road
Default Re: Replacing pcv valve

Great DIY! It's about time someone took the effort answer this long time question for our STI's.

thumbs up!
jasonlee4180 is offline   Reply With Quote
Old 03-23-09, 06:08 AM   #3
Advanced Contributor Level 5
Feedback Score: 3 reviews
 
Car: Black 07 STi
Fav Mod: Coming Soon
My Threads
Posts: 534
My Subaru Parts for sale

Join Date: Feb 2008
Location: near philly
Exodus751 is an unknown quantity at this point
Send a message via MSN to Exodus751
Default Re: Replacing pcv valve

yay`!!
Exodus751 is offline   Reply With Quote
Old 03-23-09, 12:38 PM   #4
Advanced Contributor Level 1
Feedback Score: 0 reviews
 
Car: 05 Sti
My Threads
Posts: 134
My Subaru Parts for sale

Join Date: Oct 2005
Location: Seattle, WA
seattle944t is on a distinguished road
Default Re: Replacing pcv valve

Quote:
Originally Posted by Rennes View Post
PCV valve explanation:


Your PCV explanation graphic is not correct. The pressure control solenoid =! PCV. PCV is Positive Crankcase Ventilation valve and uses manifold vacuum pressure to draw out crankcase vapors. The pressure control solenoid is used as part of the evaporative emissions system for handling gas vapors from the gas tank.

Otherwise, nice wright up.
seattle944t is offline   Reply With Quote
Old 03-23-09, 01:29 PM   #5
Advanced Contributor Level 4
Feedback Score: 1 reviews
 
Car: 04 Subaru WRX STi
Fav Mod: Fujitsubo!!!!!!!!
My Threads
Posts: 452
My Subaru Parts for sale

Join Date: Nov 2006
Location: Québec
Rennes is on a distinguished road
Default Re: Replacing pcv valve

Thanks seeing that, I copied the wrong diagram from the FSM.

I'll update this asap.
Rennes is offline   Reply With Quote
Old 04-01-09, 12:27 PM   #6
Advanced Mastery Level III
Feedback Score: 2 reviews
 
Car: BNR32 GTR
My Subaru Parts for sale

Join Date: Aug 2003
Location: Ikedacho, Japan
munky69 is an unknown quantity at this point
Default Re: Replacing pcv valve

Quote:
Originally Posted by Rennes View Post

PLEASE UNDERSTAND THIS: the PCV valve is NOT on the recommended subaru maintenance. I don't understand why people would want to change it.
LOL why make a write up for it? good job tho, easy to follow
__________________
munky69 is offline   Reply With Quote
Old 06-08-09, 08:26 AM   #7
Advanced Contributor Level 4
Feedback Score: 0 reviews
 
Car: PBP 2011 STILimited
Fav Mod: spending tons of money on mods, then buying a new sti every 3 yrs!!
My Threads
Posts: 477
My Subaru Parts for sale

Join Date: Jun 2008
Location: lindenwold, NJ
Fear-No-Evo is an unknown quantity at this point
Default Re: Replacing pcv valve

Nice write up, thanks!
Fear-No-Evo is offline   Reply With Quote
Old 08-04-09, 01:00 PM   #8
Becoming A Contributor
Feedback Score: 0 reviews
 
Car: White 04 WRX STI
Fav Mod: Cobb Accessport v2
My Threads
Posts: 15
My Subaru Parts for sale

Join Date: Jul 2009
Location: Saskachewan Canada
bandit33 is an unknown quantity at this point
Thumbs up Re: Replacing pcv valve

remember to by the entire three piece assembly, I failed to do so and realized that removal would cause breakage to the housing (three piece assembly) opted then to pull the whole assembly from engine block and cleaned with carb cleaner. This gave me a noticable improvement in the PCV valve and once again could hear it "click" when shaken back and forth, i agree this write and pics were very helpful.
bandit33 is offline   Reply With Quote
Old 08-05-09, 01:53 PM   #9
Becoming A Contributor
Feedback Score: 0 reviews
 
Car: 05 STI
Fav Mod: Coming Soon
My Threads
Posts: 31
My Subaru Parts for sale

Join Date: Jul 2009
Location: St. Louis
OEM_STI_STL is an unknown quantity at this point
Default Re: Replacing pcv valve

I called my dealer for a pcv for my 05 sti. THEY SAID THERE ISNT ONE
OEM_STI_STL is offline   Reply With Quote
Old 08-05-09, 02:10 PM   #10
Advanced Contributor Level 5
Feedback Score: 1 reviews
 
Car: 06 STI CGM
Fav Mod: Line X
My Threads
Posts: 500
My Subaru Parts for sale

Join Date: Jun 2007
Location: Saving your house
Brushfire is on a distinguished road
Default Re: Replacing pcv valve

Quote:
I called my dealer for a pcv for my 05 sti. THEY SAID THERE ISNT ONE
Yeah, I have found that most people are too lazy, or just pull info out of their nose at these dealerships. I usually research the part # and force them to order it.

If an '04 has one and my '06 has one, then logically the '05.....

Quote:
opted then to pull the whole assembly from engine block and cleaned with carb cleaner. This gave me a noticable improvement in the PCV valve and once again could hear it "click" when shaken back and forth
This is probably your best advice. Free and no dealership involvment.
Brushfire is offline   Reply With Quote
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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



New To Site? Need Help? More

All times are GMT -8. The time now is 02:10 AM.


Powered by vBulletin
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Designed & Powered by Domain Architect
Privacy Policy