2004 Taurus Gross Air Leak

2004 FORD FIVE HUNDRED
140,000 MILES • 6 CYL • FWD • AUTOMATIC
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GATEDAD61
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2004 Taurus gets a P0455 code with Check Engine light. Periodially also get a gas cap light. I have replaced gas cap twice and checked filler neck for leaks. Any ideas on where the "ECS Gross Leak" could be?
Jun 6, 2011 at 4:59 PM
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CARADIODOC
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Could be anywhere along the frame up to the front and back to the gas tank. If you don't find a hose clamp rusted off the hose to the charcoal canister, the best tool to use is a smoke machine to inject white smoke at 2 psi and watch where it seeps out.
Jun 6, 2011 at 5:49 PM