Return fuel line leaking at fuel rail discount o ring on 88 jeep Cherokee inline 6cy
Thread Starter
Junior Member
Joined: Apr 2021
Posts: 32
Likes: 3
From: Tennessee
Year: 1988
Model: Cherokee (XJ)
Engine: Inline 6cy
My 88 jeep Cherokee started leaking very bad at the o ring inside the fuel line. I need to know how many o rings should be inside it and my plastic insert doesn't go completely inside the metal connector on fuel line. Is it supposed to be visible like in this picture i have posted? I am trying to find out the correct repair kit for it and correct way to fix it.
Thread Starter
Junior Member
Joined: Apr 2021
Posts: 32
Likes: 3
From: Tennessee
Year: 1988
Model: Cherokee (XJ)
Engine: Inline 6cy
In process of trying to order the repair kit for it. Evidently at some point past owners or possibly past engine work is when the spacer and one o ring some how didn't get put back together correctly. Hence the reason I was asking you exactly what all parts are supposed to be inside the fuel line. There has only been one o ring in it sense I've owned it.
I do thank you very much sir for your help. This is the first Cherokee I've owned and I'm learning about it.
I do thank you very much sir for your help. This is the first Cherokee I've owned and I'm learning about it.
CF Veteran



Joined: Aug 2020
Posts: 2,109
Likes: 576
From: SoCal
Year: 1988
Model: Cherokee (XJ)
Engine: 4.0L
I recall when I took mine apart, it had 1 o-ring sandwiched between 2 spacers. However the new repair kits I have have 2 o-rings and 1 spacer between them. I haven't used the new kits yet.
Here's the repair kit
, also probably on the shelf at the local parts store.
Could be one or two o-rings on the original. I'm betting you have an o-ring torn or jammed sideways in there. Clean out the metal barrel too, as dirt under the lip will prevent the clip from snapping into place.
Could be one or two o-rings on the original. I'm betting you have an o-ring torn or jammed sideways in there. Clean out the metal barrel too, as dirt under the lip will prevent the clip from snapping into place.
Thread Starter
Junior Member
Joined: Apr 2021
Posts: 32
Likes: 3
From: Tennessee
Year: 1988
Model: Cherokee (XJ)
Engine: Inline 6cy
The correct way to install the kit is o ring, spacer,an o ring. Cruiser54 helped me out with that.
Thread Starter
Junior Member
Joined: Apr 2021
Posts: 32
Likes: 3
From: Tennessee
Year: 1988
Model: Cherokee (XJ)
Engine: Inline 6cy
Here's the repair kit https://www.amazon.com/Crown-Automot.../dp/B00B8X56RA, also probably on the shelf at the local parts store.
Could be one or two o-rings on the original. I'm betting you have an o-ring torn or jammed sideways in there. Clean out the metal barrel too, as dirt under the lip will prevent the clip from snapping into place.
Could be one or two o-rings on the original. I'm betting you have an o-ring torn or jammed sideways in there. Clean out the metal barrel too, as dirt under the lip will prevent the clip from snapping into place.
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Thread Starter
Junior Member
Joined: Apr 2021
Posts: 32
Likes: 3
From: Tennessee
Year: 1988
Model: Cherokee (XJ)
Engine: Inline 6cy
In process of trying to order the repair kit for it. Evidently at some point past owners or possibly past engine work is when the spacer and one o ring some how didn't get put back together correctly. Hence the reason I was asking you exactly what all parts are supposed to be inside the fuel line. There has only been one o ring in it sense I've owned it.
I do thank you very much sir for your help. This is the first Cherokee I've owned and I'm learning about it.
I do thank you very much sir for your help. This is the first Cherokee I've owned and I'm learning about it.
Thread Starter
Junior Member
Joined: Apr 2021
Posts: 32
Likes: 3
From: Tennessee
Year: 1988
Model: Cherokee (XJ)
Engine: Inline 6cy
In process of trying to order the repair kit for it. Evidently at some point past owners or possibly past engine work is when the spacer and one o ring some how didn't get put back together correctly. Hence the reason I was asking you exactly what all parts are supposed to be inside the fuel line. There has only been one o ring in it sense I've owned it.
I do thank you very much sir for your help. This is the first Cherokee I've owned and I'm learning about it.
I do thank you very much sir for your help. This is the first Cherokee I've owned and I'm learning about it.
I got fuel line leak fixed today, i ordered the fuel line repair kit, mine uses the 5/16" repair kit. That's probably the easiest repair I've ever done on anything I've ever owned and worked on! Thanks to everyone who had input on this repair.
CF Veteran


Joined: Dec 2017
Posts: 1,508
Likes: 409
From: San Mateo, CA
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0 Renix, stock.
all them little plastic parts are potential for failure. plastic in a hot engine bay? these jeeps were probably designed with a ten year service life, planned obselensence. rather than built to last, rather than built for easy repair, rather than built for inexpensive repair
Senior Member
Joined: Aug 2020
Posts: 614
Likes: 205
From: Prescott, AZ
Year: 1988
Model: Cherokee (XJ)
Engine: 4.0
The legacy of Motor City gives us more like a 6 year design life because historically any car in Michigan will have completely rusted away to nothing in 6 years on those heavily salted roads. Salt in the winter to melt the snow and ice, salt in the summer on the dirt roads to keep the dust down.
The other design problem is that after the warranty, repair problems are not their problems. They simply don't care after that. Don't like all the repairs? <Henry Hill voice>Screw you, buy a new one. </Henry Hill voice>
There is a reason that the big three went from 90% market share to 25% market share over the last few decades. If you can't think, you will be replaced by someone who can.
The other design problem is that after the warranty, repair problems are not their problems. They simply don't care after that. Don't like all the repairs? <Henry Hill voice>Screw you, buy a new one. </Henry Hill voice>
There is a reason that the big three went from 90% market share to 25% market share over the last few decades. If you can't think, you will be replaced by someone who can.
Thread Starter
Junior Member
Joined: Apr 2021
Posts: 32
Likes: 3
From: Tennessee
Year: 1988
Model: Cherokee (XJ)
Engine: Inline 6cy
Yes it is a crap failure prone design. But it allowed speedy assembly at the factory. you can slip a regular hose over the barb that serves as an oring stop, then use a proper fuel injection style hose clamp. much better, and much better for a trail side repair.
all them little plastic parts are potential for failure. plastic in a hot engine bay? these jeeps were probably designed with a ten year service life, planned obselensence. rather than built to last, rather than built for easy repair, rather than built for inexpensive repair
all them little plastic parts are potential for failure. plastic in a hot engine bay? these jeeps were probably designed with a ten year service life, planned obselensence. rather than built to last, rather than built for easy repair, rather than built for inexpensive repair
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