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Unread 08-14-2012, 11:25 PM   #1
calemasters
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2010 JK Fuel odor after 1 -2 hours on trail at low speeds

I have noticed a fuel odor at the back of the Jeep after being on a trail for 1 to 2 hours at low speeds. I assume this due to evaporative system not being able to purge the charcoal canister due to low vehicle speeds.

I do not have a check engine light, no codes and no known problems. As soon as I leave the trail and return to highway speeds the order stops. The fuel cap is good and seals properly to the filler neck. The canister is well protected by a skidplate. I do not top off the fuel tank. Fuel level is about 1/2 to 3/4 when I am on the trail and have noticed the gasoline odor.

Does this seem normal? Anyone else noticed this condition?

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Unread 08-15-2012, 03:31 AM   #2
OH9JK
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Is it a raw fuel smell or exhaust smell?
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Unread 08-15-2012, 07:40 AM   #3
calemasters
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Gasoline odor, not exhaust.
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Unread 08-15-2012, 11:45 AM   #4
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I had the same problem with my 08 a lot and once so far on my 12. I have also heard of others with the same problem so I think its not that uncommon. I do believe that it has to be a very hot day for that to happen too. Sometimes it can become pretty bad to where youd think that you have fuel leaking but of course it isnt.
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Unread 08-15-2012, 11:51 AM   #5
1AAdam
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interesting maybe the evap system is where it's coming out?
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Unread 08-15-2012, 01:17 PM   #6
paul84043
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Never had that problem, but I do know that if you can smell it that strong..the concentration has become enough to potentially be dangerous.. Probably worth a second look at least...
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Unread 08-15-2012, 01:55 PM   #7
Wavedatya
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^^^. Yeah. That's not good. You shouldn't smell fuel like that. Unless when you filled up you got gas on the outside.

I have honestly never heard o that. I know a few people have had issues with these gas tanks. Maybe a busted line?

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Unread 08-15-2012, 03:08 PM   #8
calemasters
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Quote:
Originally Posted by 1222 View Post
I had the same problem with my ’08 a lot and once so far on my ‘12. I have also heard of others with the same problem so I think it’s not that uncommon. I do believe that it has to be a very hot day for that to happen too. Sometimes it can become pretty bad to where you’d think that you have fuel leaking but of course it isn’t.
Yes, we have had high ambient temperatures when this occurs.



Quote:
Originally Posted by 1AAdam View Post
interesting maybe the evap system is where it's coming out?
It seems to be coming from the charcoal canister.
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