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pcv valve?

Discussion in 'Chevy Suburban Forum (GMC Yukon XL)' started by chazawazzle, Jan 13, 2009.

  1. chazawazzle

    chazawazzle New Member

    hey guys, could the pcv valve make my suburban run rough if it has a bad hose or is broken?
  2. retired

    retired New Member 100 Posts

    Yes, it will create a vacuum leak.
  3. chazawazzle

    chazawazzle New Member

    i tried to fix it but that wasnt it.
    could it be the paper gasket on the air cleaner extention?

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