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Thread: Check Engine light on

  1. #1
    Join Date
    Jan 2017
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    felton, de
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    Check Engine light on

    I have a 2009 Lincoln MKS 3.7. My check engine light is on, and I pulled a code PO442. What code is this, and what part do I need to correct it.

  2. #2
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    Aug 2011
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    Washington State
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  3. #3
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  4. #4
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    That Lincoln should be cap less, most normal cause... leaving the car running while filling up


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  5. #5
    Join Date
    Oct 2014
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    Cunningham, Kansas
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    Shut it off when fueling. Get the code erased to see if it comes back.
    2004 SB #2150 of 3214 Moonroof, Heated Seats and 6 CD Changer. Non OEM Mufflers and 32,XXX miles and counting.

  6. #6
    Join Date
    Sep 2005
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    APPLE VALLEY,CA
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    1,366
    Since this is an emissions items, it has a 6 year 100,000
    warranty at the dealer. I'm assume you had the gas lid closed
    when this code popped up?

  7. #7
    Join Date
    Mar 2006
    Location
    Maple Valley, WA
    Age
    65
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    362
    I recently got the same code for a 2008 vehicle. Every time I got gas I had to disconnect the battery afterwards to clear the code. A new gas cap and I've been good for the last 6 months.
    Former owner of a 2004 DTR MM

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