|
|
|
|
Thread Tools | Display Modes |
05-17-2004, 09:30 AM | #1 |
Scooby Specialist
Member#: 46399
Join Date: Oct 2003
Chapter/Region:
MWSOC
Location: Grand Rapids, MI
Vehicle:0000 Knows nothing, about nothing. |
Checked for boost leaks, purge valve leaks, any ideas?
Part 42084G in the diagram squeels/vibrates when I manually apply pressure from an air compressor, begins around 4psi and gets worse/better as it goes up... is this normal behavior or does this valve need replaced?
* Registered users of the site do not see these ads.
|
05-17-2004, 11:35 AM | #2 |
Scooby Specialist
Member#: 46399
Join Date: Oct 2003
Chapter/Region:
MWSOC
Location: Grand Rapids, MI
Vehicle:0000 Knows nothing, about nothing. |
well i ordered a new valve, but nobody pressure tests their intake systems here for boost leaks?
if you do, any notes about how well it holds for you or any odd noises even though it's not leaking to atmosphere? |
05-17-2004, 11:43 AM | #3 |
Scooby Guru
Member#: 35081
Join Date: Apr 2003
Chapter/Region:
NESIC
Location: CT
Vehicle:2012 WRX WRB |
IIRC isnt that a check valve for the FPR, and fuel system?
|
05-17-2004, 01:04 PM | #4 | |
Scooby Specialist
Member#: 21980
Join Date: Jul 2002
Chapter/Region:
NESIC
Location: Central MA
Vehicle:2002 PSM WRX (Sold) 2017 BMW X5 |
Quote:
|
|
05-17-2004, 01:09 PM | #5 |
Scooby Specialist
Member#: 46399
Join Date: Oct 2003
Chapter/Region:
MWSOC
Location: Grand Rapids, MI
Vehicle:0000 Knows nothing, about nothing. |
so this is NOT supposed to happen right?
what other affects is this having on the running condition of my car? |
05-17-2004, 04:10 PM | #6 |
Scooby Guru
Member#: 32792
Join Date: Feb 2003
Chapter/Region:
NESIC
Location: lincoln, ri
Vehicle:2003 GGA MBP 12.9 / 105+ |
probably needs to be replaced. when you think about the function of that part, you have three ports... fuel in, fuel out, and manifold pressure. the manifold pressure should have no flow other than that required to deflect the internal diaphragm. vibrating/squeeling indicates to me an internal leak.
jm2c ken |
05-17-2004, 04:20 PM | #7 |
Scooby Guru
Member#: 35081
Join Date: Apr 2003
Chapter/Region:
NESIC
Location: CT
Vehicle:2012 WRX WRB |
Also...
Whats your fuel pressure at idle? Under boost? And WHY are you testing for boost leaks? Is boost bleeding off on you...? |
05-17-2004, 04:58 PM | #8 | |
Scooby Specialist
Member#: 46399
Join Date: Oct 2003
Chapter/Region:
MWSOC
Location: Grand Rapids, MI
Vehicle:0000 Knows nothing, about nothing. |
Quote:
|
|
05-17-2004, 05:00 PM | #9 | |
Scooby Guru
Member#: 35081
Join Date: Apr 2003
Chapter/Region:
NESIC
Location: CT
Vehicle:2012 WRX WRB |
Quote:
The purge vavle may be ok, but I dont think anyones ever had it go bad so we dont know how to diagnose it... What turbo are you running now?! -Dave |
|
05-17-2004, 05:37 PM | #10 |
Scooby Specialist
Member#: 46399
Join Date: Oct 2003
Chapter/Region:
MWSOC
Location: Grand Rapids, MI
Vehicle:0000 Knows nothing, about nothing. |
stock turbo
i understand it vents vapors, but it can affect fuel pressure too? i thought the line running to the fpr was independant |
05-17-2004, 05:40 PM | #11 | |
Scooby Guru
Member#: 35081
Join Date: Apr 2003
Chapter/Region:
NESIC
Location: CT
Vehicle:2012 WRX WRB |
Quote:
|
|
05-17-2004, 05:42 PM | #12 | |
Scooby Specialist
Member#: 46399
Join Date: Oct 2003
Chapter/Region:
MWSOC
Location: Grand Rapids, MI
Vehicle:0000 Knows nothing, about nothing. |
Quote:
yeah everything's attached and operating perfectly except this valve, no check engine light and good vacuum @ idle, runs/drives fine... i was just trying to gauge how important this little valve was and what it affects negatively except emissions if it fails |
|
05-17-2004, 06:34 PM | #13 |
Scooby Guru
Member#: 32792
Join Date: Feb 2003
Chapter/Region:
NESIC
Location: lincoln, ri
Vehicle:2003 GGA MBP 12.9 / 105+ |
ahh, here i was thinking that's your fpr... damn. disregard my previous comments please!
those exploded parts diagrams can be confusing when you don't have the real thing in front of you! ken |
09-08-2004, 09:51 PM | #14 |
Scooby Guru
Member#: 28408
Join Date: Oct 2002
Chapter/Region:
TXIC
Location: San Antonio, Tx
Vehicle:2002 vf48ed WRX OBP |
do you have a loud squeal? if so i have the same problem... did you ever find a solution?
|
07-05-2005, 01:29 PM | #15 |
Scooby Newbie
Member#: 36983
Join Date: May 2003
Chapter/Region:
MWSOC
Location: wi
Vehicle:2002 wrx black |
I know this is old but I am replacing the purge valve. Which way does the to e/g connect to?
|
07-05-2005, 01:59 PM | #16 |
Top Scoob 002
Member#: 32771
Join Date: Feb 2003
Chapter/Region:
BAIC
Location: Danville, CA
Vehicle:03 Black WRX 04 White M3 |
That sound is normal, whenever I pressurize a system on my car or a friends it will make that noise once the system is completly full of air. This valve just releases some of the air because it has no where else to escape. If i recall the valve has an arror showing which way it connects.
|
07-05-2005, 03:55 PM | #17 |
Scooby Newbie
Member#: 36983
Join Date: May 2003
Chapter/Region:
MWSOC
Location: wi
Vehicle:2002 wrx black |
The arrow has the letters e/g, I need to know if it goes toward the intake or the other direction. I am thinking it points away from the intake.
|
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Purge Valve Leak ? | AndrewMC | Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) | 6 | 09-11-2008 11:52 PM |
AP boost gauge to check for boost creep? | sperry7 | AccessPort | 3 | 07-24-2006 05:20 PM |
Best way to check for boost leaks | Natoe | Newbies & FAQs | 3 | 06-30-2006 12:59 PM |
I'm this close to selling the bastard. Boost control issues > me. Any ideas? | Noizemaker | Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) | 50 | 03-13-2006 04:34 PM |
Looking for NJ shop 4 Spring Install! Any ideas?? | SoLiDbReAkZ | Tri-State Area Forum | 19 | 02-07-2002 01:16 PM |