5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

purge valve?

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Old 01-07-2009, 07:02 PM
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Shelty
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Default purge valve?

where is the purge valve on a 5.0 fox? every time I open my gas cap alot of pressure is released, its been very cold out as well... how do you know also when you need to replace the charcol canister?
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Old 01-07-2009, 07:07 PM
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mjr46
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follow the vaccum lines from the charcoal canister up to the intake and inline will be the purge valve
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Old 01-07-2009, 07:11 PM
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thanks. mjr, something is telling me its not working right..
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Old 01-07-2009, 07:50 PM
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could be the check valve on the canister
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Old 01-07-2009, 08:09 PM
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how do I tell if the check valve is working right?

do they even sell the canisters anymore?
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Old 01-07-2009, 09:06 PM
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pull the line loose that goes from tank to canister and let it vent to atmosphere and see if that stops the pressure build up....not sure if they sell the canisters anymore???
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Old 01-07-2009, 09:45 PM
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thanks, I'll have to play with it when I get a chance
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