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Old 01-09-2017, 08:32 PM
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Gas Tank Hose Connections?

Got an '01 Sahara that cranks but won't start. Been running down all the possible causes before replacing the fuel pump. Checked fuses/relays, replaced CPS. Today I noticed a hose (see arrow) hanging loose near the gas tank. IT appears to be coming from the fuel return line. I have no idea how it would've come loose but could it be the culprit??? Thanks.

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Old 01-09-2017, 08:44 PM   #2
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that's a vent line

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Old 01-09-2017, 08:55 PM   #3
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It looks like the fuel system has been completly re-engineered as what you have is not a TJ fuel pump and plumbing. The TJ runs a submersible fuel pump as you can see in the picture.
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Old 01-10-2017, 08:49 AM   #4
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Those small black valves are "roll over valves" that run to your EVAP canister. Check connections under the Jeep. There should be an open line back there somewhere that hose attaches to.
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Old 01-10-2017, 09:40 AM   #5
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Quote:
Originally Posted by TJ4Jim View Post
It looks like the fuel system has been completly re-engineered as what you have is not a TJ fuel pump and plumbing. The TJ runs a submersible fuel pump as you can see in the picture.
Looks like they added an inline filter.
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Old 01-11-2017, 08:34 PM
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Guess I should've been clearer. (I knew what I meant!) That's not a picture of my Jeep, just one I found showing the hose connections on top of the tank. The part that still applies is the hose the arrow's pointing toward. It is a rubber hose connected to the engine fuel return line (not shown).

The end that's shown connected to the "T" fitting was hanging loose under the Jeep and I'm m trying to figure out whether:
> it just worked its way loose and I should reconnect it and try to start the engine
> or it might have been disconnected by some unknown person (prior owner?) for some unknown but legitimate reason.
> Don't want to reconnect it and blow something up!

Please comment if you know anything about that hose connection! Thanks again.
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Old 01-11-2017, 09:01 PM   #7
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Please comment if you know anything about that hose connection! Thanks again.
It's a vapor line. Do you have a DTC for an evap system leak?
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Old 01-12-2017, 12:41 PM   #8
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Quote:
Originally Posted by Daddycat View Post
Guess I should've been clearer. (I knew what I meant!) That's not a picture of my Jeep, just one I found showing the hose connections on top of the tank. The part that still applies is the hose the arrow's pointing toward. It is a rubber hose connected to the engine fuel return line (not shown).

The end that's shown connected to the "T" fitting was hanging loose under the Jeep and I'm m trying to figure out whether:
> it just worked its way loose and I should reconnect it and try to start the engine
> or it might have been disconnected by some unknown person (prior owner?) for some unknown but legitimate reason.
> Don't want to reconnect it and blow something up!

Please comment if you know anything about that hose connection! Thanks again.
Quote:
Originally Posted by CzerOne View Post
Those small black valves are "roll over valves" that run to your EVAP canister. Check connections under the Jeep. There should be an open line back there somewhere that hose attaches to.
I don't mean to be rude, but a few times it has been stated exactly what that line is. It runs to your evap canister.. Trace the lines from the canister.
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Old 10-26-2018, 08:18 AM   #9
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Red face

Great! Now where would one get that tee fitting! Of course I broke mine while removing the gas tank. Do I need to make sure I have the proper material? Polypropylene, polyethylene?
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Old 10-26-2018, 08:37 AM   #10
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nevermind I found out that Nylon will do the trick.

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