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evap. problems in '99 5.4?

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Old Aug 22, 2007 | 05:44 PM
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evap. problems in '99 5.4?

the gas tank is collapsing in. could this be some sort of evap. problem with a valve being stuck or bad? i have tried different gas caps with no success. thanks ahead for input.
 
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Old Aug 23, 2007 | 07:47 AM
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I'd be looking at a clogged canister vent solenoid, canister, or vent hose. Spiders or mud can be the cause.

Steve
 
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