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Old 10-25-2011, 09:40 AM   #1
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Gas smell

Hey everyone,

Starting yesterday I began to smell gas inside the cab of the jeep. Went to fill up and it got the usual MPG (17.5). I have not noticed any loss of power or sluggishness from the engine. Softtop was on with back window off....not sure of what it could be. I used about a quarter tank since yesterday morning and filled up again and 16.9 mpg.....

Thanks
Danny

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Old 10-25-2011, 10:07 AM   #2
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Could be one of your EVAP lines have come loose, or a broken connection. Is your check engine light on? What year is the Jeep? Newer TJ's have the cannister in the rear. I started smelling fumes and it was a broken EVAP line connector near the gas tank. But, when it happened it threw the code.

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Old 10-25-2011, 10:14 AM   #3
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No codes as of yet....just a light smell of gas. Started Sunday afternoon. It is a 98 2.5 TJ...where would I look for a free line or loose line?

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Old 10-25-2011, 10:30 AM   #4
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Now you got me! I know nothing about the 4 cylinder TJ engines. Fill out your Jeep Profile with what is on your Jeep. You may get more help from people if they know what your rig is equiped with.

As far as my Jeep problem, It was an EVAP connector that just outside of the top front driver's side corner of the gas tank. I was lucky. I did not have to drop the tank. There are some more connections on top of it. I had just put it back in after installing a new gas tank skid.

On my '04, the EVAP canister is in the back pass. corner of the tub. Older TJ's have them up front in the engine compartment somewhere. On yours? IDK.

Your problem may have nothing to do with EVAP. Do you have any kind of body lift? Check all your fuel line connects too. Is your fill nozzle connections nice and tight? Just throwing out some more ideas.
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Old 10-25-2011, 10:34 AM   #5
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Check the big lock ring that connects the fuel pump to the tank. There is a big rubber gasket on between the two that may be bad or the ring could have loosened up. Also when I run with the back window up I always smell exhaust.
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Old 10-25-2011, 10:44 AM   #6
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It may be the exhaust but I will check the ring as well....took out the windows today and will see if that works....thanks for the information and assistance. Have a great day.

Danny
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Old 10-25-2011, 11:18 AM   #7
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TJDave....thanks for the suggestions. I thought I had everything filled out already. But here goes:

98 TJ with the 2.5. Everything else is stock except the 31x10.5 BFG's. Approximately 110k miles.

Seems to running with no problems. Just the smell.

Thanks everyone
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Old 10-25-2011, 11:23 AM   #8
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Had this happen recently. Trace your fuel lines from the tank, to the EVAP canister and all they way to the engine looking for cracked or disconnected lines. Everything looked good but still smelled fuel so I had a smoke test run for $60 and sure enough, the only part of the fuel lines I couldn't see was the problem. The seal on top of the gas tank was loose. Had to drop the tank and reinstall the lines correctly.
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Old 10-25-2011, 11:54 AM   #9
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thanks...I will try when I get home...any advice on dropping the tank if necessary.

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