Major vacume in fuel tank causing fuel to spill out - JeepForum.com

 
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post #1 of 3 Old 09-28-2008, 02:27 PM Thread Starter
bigredcherokee
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1992 YJ Wrangler 
 
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Major vacume in fuel tank causing fuel to spill out

What would cause the fuel tank to have sever vacume? If I drive it for a mile or so and twist the fuel cap you can hear the tank sucking air and alot of stuff poping as it goes back to regular shape.

Kinda like a coke bottle when the air is taken out and it pops back into place.


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post #2 of 3 Old 09-28-2008, 02:28 PM
Burnerman
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Bad gas cap? Crushed vent line to charcoal canister?

96 ZJ.
05' Grand Cherokee Limited, 2"OME lift
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post #3 of 3 Old 09-28-2008, 02:35 PM Thread Starter
bigredcherokee
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new locking gas cap still going to check it with a spare I have. How would I know if the charcoal canister is bad?

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Last edited by bigredcherokee; 09-28-2008 at 07:46 PM.
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