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#1
05-17-2007, 12:56 AM
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Po442
My 2003 Tundra has check engine light on. They say it is code #PO442.
I replaced the gas cap about a year ago and the light went off. Same story, new cap again but the light is still on. I'm traveling out of state this weekend. Is a small Evaporation Emission Leak something to worry about. Will it create a bigger problem if ignored. Thanks. 
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#3
06-21-2007, 09:58 AM
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Re: Po442
It could be the sensor going bad if you already replaced the cap.
__________________
  2000 Silverado Z71, 5.3L, K&N GenII Air Intake, Y-pipe Exhaust (no muffler), Bosch Platnium +4 plugs, 242k miles and still running.
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#4
07-07-2007, 09:14 PM
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Re: Po442
There is a TSB regarding a P0442... it involved replacing the fuel filler neck.
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