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Trouble codes need help

This is a discussion on Trouble codes need help within the External Engine forums, part of the LSx Technical Help Section category; The check engine light came on in my 99 T/A. I bought an OBDII code reader and the code PO442 ...

  1. #1
    Member wicked1's Avatar
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    1999 Trans Am

    Trouble codes need help

    The check engine light came on in my 99 T/A. I bought an OBDII code reader and the code PO442 came up. The book says that this is Evaporitive EmissionControl system leak. I also noticed the car makes a whining noise kind of like a small vacume cleaner from the drivers side while at idle. As you rev it up the noise goes away, at idle it comes back. Does anyone know exactly what this code is? Thanks

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    Member ultra_badass's Avatar
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    navy blue matallic
    2000 WS6 trans am M6

    when mine did that the fuel tank lid wasnt all the way down so if you just got gas it might be that ....not saying thats it but somthing to look at

    thomas

  3. #3
    Senior Member ss~zoso~ss's Avatar
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    SS: NBM, tan top
    1998-SS, 2010 Jetta TDI

    that whine might be the AIR pump

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