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Discussion Starter · #1 ·
88 2.5 5 speed...just to introduce the jeep. I have been noticing a fuel smell lately and when is looked at the tank one of the lines looked rotten. Well, tonight after filling up I noticed it started dripping. I tried tightening the screw on the clasp, drove around the block, still dripping.

My question is what line is this? Return line? Fuel line? It's the first hose you see when you look between the tub and fender. My Haynes manual doesn't offer much help...at least that I can find.

Any advice or help is appreciated!



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Go to Quadratec.com and look at the parts pictures for fuel system. There you can identify which is what.

If one is leaking and rotten so are the others. It's time replace all if them.
 

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The 2 that are in that area are the filler neck tube and the vent tube. Those both go from the tank up to the gas cap on the rear of the Jeep.
 

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As 0III0forlife said it
one is filler and one is vent.

Here are the part numbers if you need them, i just replaced mine.
Filler - CRO52040079
Vent - CRO52040081
 

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As recommended above, if one is bad, you should replace them all.

Drop the tank, and replace all the rubber lines. Also replace the rubber lines at the fuel filter - including the custom rubber elbow that is way too expensive.
 

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Discussion Starter · #6 ·
As 0III0forlife said it one is filler and one is vent. Here are the part numbers if you need them, i just replaced mine. Filler - CRO52040079 Vent - CRO52040081
Thanks for the part numbers! I was looking at them today. I believe the stock tank size is 15.... Right?
 

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Discussion Starter · #7 ·
I've actually read contradicting tank sizes. I've read there is a stopper they put in there to make a 20 into a 15 gallon size. All the websites only show hoses for a 20..,should I just assume I have a 20? I've never put in anywhere close to 20 gallons when filling up. Also, is there anything else I will need to get besides hoses? Seals for tank?
 

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The stock tank is a 20 gallon tank with an extended fill tube that goes into the tank deeper, thus not allowing you to use the top 5 gallons. If you are replacing the lines, you will have to drop the tank. If you drop the tank, you might as well remove the extended fill tube and get access to the extra 5 gallons. There are plenty of articles that explain what to do to remove the extended fill tube.
 

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Discussion Starter · #10 ·
Finally got around to replacing the vent hose today. Didn't need to drop the tank, but I did have to cut the hose in half and use the extender the PO put on when he replaced the hose. So far so good!
 
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