WJ leaking fuel from injector rail - JeepForum.com

Reply
 
LinkBack Thread Tools
post #1 of 34 Old 06-15-2009, 10:47 PM Thread Starter
darinr
Registered User
2002 WJ 
 
Join Date: Jun 2009
Location: washougal
Posts: 3
WJ leaking fuel from injector rail

Just wondering if anyone could help me figure out what to call this part, it's leaking fuel off the fuel injector rail. I wasn't able to find it in the service manual and the dealer had no idea what I was talking about, but was more than eager to sell me a new rail . I can twist it and it seems to be loose like it once was pressure fitted. Any insight is much appreciated.

thanks,
-darinr



darinr is offline  
Sponsored Links
Advertisement
 
post #2 of 34 Old 06-15-2009, 10:51 PM
MEinSoCal
Registered User
2001 WJ 
 
Join Date: Sep 2007
Location: Los Angeles
Posts: 1,515
MEinSoCal is offline  
post #3 of 34 Old 06-15-2009, 10:57 PM
QuadraTokn
Registered User
 
QuadraTokn's Avatar
1930 WJ 
 
Join Date: Dec 2006
Location: Chicago, IL
Posts: 4,955
Too small of a picture to see whats going on.

The fuel line IS pressure fitted to the rail.

You're supposed to be able to just push it on with your hand, and since I assume you've tried that, maybe you need a new line or something.

If it turns out you need a rail or something I have used WJ parts for sale.

LIKE US ON FACEBOOK: Valhalla Fabrication

NEW Dana 44a Axle Truss and Skid !
WJ Grand Cherokee Tube Doors For Sale !
ZJ Grand Cherokee Tube Doors For Sale !
PARTS FOR SALE from 10 WJ Grand Cherokees ! !
QuadraTokn is offline  
post #4 of 34 Old 06-15-2009, 10:59 PM
Kruzin
Web Wheeler
 
Kruzin's Avatar
2009 JK Wrangler 
 
Join Date: Aug 2007
Location: Lakewood
Posts: 3,456
New o-rings on the injector(s).

'09 Rubicon
Kruzin is offline  
post #5 of 34 Old 06-15-2009, 11:05 PM
Bojeepus
Registered User
1995 YJ Wrangler 
 
Join Date: Jan 2009
Location: Chattanooga Tn
Posts: 498
can't realy tell from the picture but isnt that the fuel presure regulator
Bojeepus is offline  
post #6 of 34 Old 06-15-2009, 11:12 PM
MEinSoCal
Registered User
2001 WJ 
 
Join Date: Sep 2007
Location: Los Angeles
Posts: 1,515
Quote:
Originally Posted by Kruzin View Post
New o-rings on the injector(s).
can o-rings be bought from auto parts stores separately?
MEinSoCal is offline  
post #7 of 34 Old 06-15-2009, 11:19 PM Thread Starter
darinr
Registered User
2002 WJ 
 
Join Date: Jun 2009
Location: washougal
Posts: 3
I'm new to the forum and still trying to figure out how to embed images but in the meantime here are a couple different angles.

http://lh3.ggpht.com/_7BjSzK0MuWY/Sj...s800/IMG_3.jpg

http://lh6.ggpht.com/_7BjSzK0MuWY/Sj...s800/IMG_2.jpg

It's not one of the injectors, may be a regulator or pressure valve of some sort.
darinr is offline  
post #8 of 34 Old 06-15-2009, 11:23 PM
xJoshxx
Web Wheeler
 
xJoshxx's Avatar
2012 WK 
 
Join Date: Sep 2008
Location: Burlington, Kentucky
Posts: 5,533
Quote:
Originally Posted by darinr View Post
I'm new to the forum and still trying to figure out how to embed images but in the meantime here are a couple different angles.

http://lh3.ggpht.com/_7BjSzK0MuWY/Sj...s800/IMG_3.jpg

http://lh6.ggpht.com/_7BjSzK0MuWY/Sj...s800/IMG_2.jpg

It's not one of the injectors, may be a regulator or pressure valve of some sort.
you think you can get closer? so far all your pictures have been far away hard to see anything. and your a new user u dont have 50 tech post's yet.

ALSO make your pictures with the [img ] [/ img] tags so we can no clicky them

Sold4" Hybrid lift TeraFlex coils IRO Adjustable LA's Jks tracbar 1.25spidertrax spacers 265/75/16 Dura-tracs
Quote:
Originally Posted by moPowered View Post
The SRt-8's are a liberty design.
2011 WK2 ORA2 sold
2012 WK2 SRT8 - Current
99 WJ Limited Lifted.
2001 WJ stock 4.0 304k miles
xJoshxx is offline  
post #9 of 34 Old 06-16-2009, 06:28 AM
Marcos
Registered User
1993 ZJ 
 
Join Date: Mar 2005
Location: Germantown
Posts: 939
The pressure regulator is in the pump assembly int he tank. That's probably a fuel pressure dampener. It looks like it should be a separate piece, but I didn't see it listed separately on the parts websites, so it may only be available as part of a fuel rail assembly.
Marcos is offline  
post #10 of 34 Old 06-16-2009, 10:06 AM Thread Starter
darinr
Registered User
2002 WJ 
 
Join Date: Jun 2009
Location: washougal
Posts: 3
Thanks a bunch everyone for all your input! Turns out it is the fuel pressure damper, #8 on diagram below.

Darin

darinr is offline  
post #11 of 34 Old 11-17-2009, 12:29 PM
WJJIM02
Registered User
2002 WJ 
 
Join Date: Nov 2009
Location: Parkville MD
Posts: 36
WJ Fuel Rail Damper Leak

What was the fix for this problem? My 02 WJ 4.0 seems to be developing the same leak at 90K.
WJJIM02 is offline  
post #12 of 34 Old 11-19-2009, 06:34 PM
quikturbo
Registered User
 
Join Date: Mar 2005
Posts: 12
Quote:
Originally Posted by WJJIM02 View Post
What was the fix for this problem? My 02 WJ 4.0 seems to be developing the same leak at 90K.
Same here I started smelling fuel while outside vents were on. Thought it was the injector o-rings as I felt some fuel by the number 4 inj, so I replaced all of the o-rings. Turns out it was trickling down to the #4 injector from the fuel pulse dampener in the above.

Nobody shows this as a part, so is it safe to assume it's sold along with a new rail assembly? It looks to have metal tabs holding it on a ridge, I've thought about trying to pop it off and see if I could replace an o-ring there.

Like WJJIM02, any suggestions on fixes?

2002 4.0 JGC
1968 Mustang Convertible (Resto Project)
quikturbo is offline  
post #13 of 34 Old 11-19-2009, 07:28 PM
Kramer H
Built and Supercharged 47
 
Kramer H's Avatar
2001 WJ 
 
Join Date: Feb 2008
Location: Everett, Washington.
Posts: 1,952
looks like some kind of pressure relief valve maybe? where are you located? in washington? what part, if i see it in person i could probably (maybe) figure it out?

oops, i should probably read the thread first. dangit.

Built Beater 01 WJ MY BUILD THREAD
Swapped, SUPERCHARGED Locked, Lifted and Long Armed.
02 Cummins. It has a smoking problem, And it wont quit.
K8 GSXR 1000- Racefit,Comp Werks,Puig,Woodcraft,B2 Industries,55W HID'S, R&G Engineering, Two brothers, ASV, DDM, "The pantie dropper"
Kramer H is offline  
post #14 of 34 Old 05-01-2010, 05:24 AM
u.p.jeeper
Registered User
 
Join Date: Jan 2008
Location: manistique,mi
Posts: 2
Has anyone ever figured out how to fix this my daughters 02 is leaking in the same spot.
u.p.jeeper is offline  
post #15 of 34 Old 05-01-2010, 06:35 AM
quikturbo
Registered User
 
Join Date: Mar 2005
Posts: 12
I ended up just buying a new fuel rail and that regulator is mounted already. After i took the old one off I inspected and while you may be able replace the o-rings under the top cap I wasn't confident it would seal up again. The rail was just under 200 if I recall.
Good luck.
Chris

2002 4.0 JGC
1968 Mustang Convertible (Resto Project)
quikturbo is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
Help fuel leak on fuel rail 2002 4.0 jzhawk ZJ Grand Cherokee Forum 2 11-17-2009 12:56 PM
4.0 possible fuel injector problem or fuel sending unit metroman ZJ Grand Cherokee Forum 2 08-15-2009 02:37 PM
Fuel rail dirtdogg ZJ Grand Cherokee Forum 1 11-21-2008 10:53 AM
Leaking fuel injector grand cherokee sooty521 ZJ Grand Cherokee Forum 4 02-11-2008 12:42 AM
Fuel Rail DEGRANDCHEROKEE ZJ Grand Cherokee Forum 8 03-19-2006 07:41 AM

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 On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome