Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here XJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.

Blowing my fuel line off! HELP!

Thread Tools
 
Search this Thread
 
Old Jan 23, 2010 | 11:05 AM
  #1  
Kevin Emary's Avatar
Thread Starter
Newbie
 
Joined: Jan 2010
Posts: 8
Likes: 0
Model: Cherokee
Default Blowing my fuel line off! HELP!

Well I had been having hard start issues so I installed a check valve. Now my fuel line is holding pressure but the pressure is blowing the fuel line apart. Here is a picture of where this is happening. The line connects back on with a 'snap'. The jeep runs fine after reconnecting the line but after I shut the Jeep off the line pops off again within a minute or two. Should I disconnect the check valve? Or is this another problem?





Reply
Old Jan 23, 2010 | 11:20 AM
  #2  
spahr69's Avatar
Senior Member
 
Joined: Jun 2009
Posts: 562
Likes: 0
From: pennsylvania
Year: 1995
Model: Cherokee
Engine: 4.0 liter
Default

sounds to me like something stuck inside the fuel line. maybe replace the whole line? install the check valve on the new line, then if it works. take the check valve off. or keep it on if you wish.
Reply
Old Jan 23, 2010 | 01:33 PM
  #3  
Kevin Emary's Avatar
Thread Starter
Newbie
 
Joined: Jan 2010
Posts: 8
Likes: 0
Model: Cherokee
Default

I don't think anything is stuck because the jeep runs fine when it's connected. No fuel delivery problems at all. The fuel line pops off a couple of minutes after I shut it off. After I reconnect it I just have to re pressurize the lines (key on-off-on) then it will run and start fine. It's just when I shut it off it pops off again.

Help......me......
Reply
Old Jan 23, 2010 | 01:56 PM
  #4  
ZachsXJ's Avatar
CF Veteran
 
Joined: Sep 2009
Posts: 4,145
Likes: 0
Default

Originally Posted by Kevin Emary
I don't think anything is stuck because the jeep runs fine when it's connected. No fuel delivery problems at all. The fuel line pops off a couple of minutes after I shut it off. After I reconnect it I just have to re pressurize the lines (key on-off-on) then it will run and start fine. It's just when I shut it off it pops off again.

Help......me......
Try making sure the inside of the hose is try and clean where the connection is made, along with making sure the metal hardline is clean on the outside...if that doesn't fix it make sure the hose is in good condition and get a new hose clamp and hose if it needs replacing
Reply
Old Feb 13, 2010 | 10:32 PM
  #5  
98Zeejay's Avatar
Newbie
 
Joined: Feb 2010
Posts: 2
Likes: 0
From: Roswell, Ga
Year: 1998
Model: Grand Cherokee
Engine: 4.0L
Default

Originally Posted by Kevin Emary
Well I had been having hard start issues so I installed a check valve. Now my fuel line is holding pressure but the pressure is blowing the fuel line apart. Here is a picture of where this is happening. The line connects back on with a 'snap'. The jeep runs fine after reconnecting the line but after I shut the Jeep off the line pops off again within a minute or two. Should I disconnect the check valve? Or is this another problem?





Here's the issue. You installed a check valve that has no calibrated pressure relief like the stock unit does. You drive the car for a while and get it up to operating temp. Your fuel line sits 6 or 8 inches above your exhaust manifold allowing your non-compressible fuel to get hot and force it's way out of the weakest point. In this case it is your fuel line. Take out that check valve immediately. Read the box it came in. These check valves ARE NOT DESIGNED FOR RETURNLESS FUEL SYSTEMS.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
NM-XJ
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
18
Oct 23, 2018 04:21 PM
Ye Ol' Cherokee
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
8
Oct 9, 2015 10:29 PM
Ella15
Cherokee Chat
0
Sep 4, 2015 05:18 PM
Ricardo Siqueiros
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
2
Sep 3, 2015 09:17 PM
Jicki Rough
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
1
Sep 2, 2015 09:36 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 



All times are GMT -5. The time now is 04:13 AM.