Strong gas odor, where should I start looking? - JeepForum.com

 
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post #1 of 9 Old 07-09-2010, 06:45 AM Thread Starter
BarryBum
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Strong gas odor, where should I start looking?

My 95 YJ Sahara, 4.0, 5 speed has started recently having a strong fuel odor. It seems to be worse around the passenger door and rear qtr area. I have not seen any fuel drippings on the ground, forcing me to believe it could be a vent or something. Have any of you guys ran across this before or is this a common problem on YJ's? Any ideas or suggestions are appreciated.

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post #2 of 9 Old 07-09-2010, 07:07 AM
Louie4
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I would check the charcoal canister on the drivers side firewall and also the filler neck and hoses on the drivers rear quarter panel. I know I had some pinched vent lines on my gas tank that caused some gas odors. The original hoses have a tendency to crack as well.

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post #3 of 9 Old 07-09-2010, 07:19 AM
Que89YJ
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Right rear quarter is where the rollover valve is connected to the vent lines for the gas tank. Pull back the flap on the right rear corner and you will see 2 lines coming into the valve.
http://www.jeepforum.com/forum/f12/p...iagram-800007/
Parts 19-25 in the diagram
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post #4 of 9 Old 07-09-2010, 07:41 AM
MDonovan8
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If you are still getting the strong smell after checking what Que89 suggested, drop the fuel tank and check connections there. That is where I found my leak.

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post #5 of 9 Old 07-09-2010, 07:55 AM
clinkous
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Same Problem

1994 Wrangler 4.0l

I am having the same problem with fuel/gas smell.

I have droped the tank, there are two vent ports, one on each side of my tank. The left or drivers side goes to the canaster under the hood. I repaired the hose all the way up.

The one on the right had no hose on it, there was a tee in the hose going to the canister so I connected it to the tee.

I have replaced all the hoses to include the fuel filter hose and filter, filler neck.

I looked on the passanger side under the plastic and there is no role over valve nor anything for that matter.

I am still getting the smell.....Any other ideas?
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post #6 of 9 Old 07-09-2010, 08:37 AM
Que89YJ
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Clinkous, you hopped someone elses thread and you havent finished filling out your profile. If you want help fill it out. Your system is not setup properly. The 2 vents should go to a T, then a single line from the T on the right side should connect to the rollover valve. That should go forward to the canister by the steering column. If you are not drawing down the vacuum from the Evap canister then you will get fumes. Check to make sure your vacuum lines are correct at the EVAP canister. If your rear body mounts are deteriorated enough it will allow the tank to get too close to the body and pinch the vent lines with the tank in place.
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post #7 of 9 Old 07-09-2010, 09:11 AM
clinkous
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Okay....sorry about the thread hopping, im new and not sure what you even mean. As for the lines, as I stated I connected the two lines to the tee and sent them forward to the canister. I looked on the right side and there is absolutly nothing up in there. I even looked for some place to mount a roll over valve and there's nothing. I will fix my profile, are you sure the 1994 wrangler had a roll over valve on the passanger side or could it be somewhere else?
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post #8 of 9 Old 07-09-2010, 09:28 AM
Que89YJ
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Thread hopping is riding in on someones post with your issue. You usually should try and post up on your own thread. Yes, it did have a rollover valve , but that isnt what is causing the smell. You put the 2 T lines together and ran them forward which should be good enough to get rid of the evap gas. You are either not venting correctly out of the gas tank (Pinched lines) or not drawing a vacuum (Evap not setup correctly) or maybe the 3rd possibility is a leaking gas line out of the tank or fuel filter.
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post #9 of 9 Old 07-09-2010, 09:42 AM
Que89YJ
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