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Thread: Is this a cracked intake plenum? (see attached pics)

  1. #16
    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
    Automobile(s): 2002.5 F55 STS - 67,500 miles, 2014 Explorer XLT FWD
    Join Date
    Feb 2006
    MD Eastern Shore, Kent Island

    Re: Is this a cracked intake plenum? (see attached pics)

    Quote Originally Posted by gbrown2934 View Post
    I am having some idle issues when cold, had 2 codes po171 and po174, bank 1 lean bank 2 lean, I was told it was the plenum, or is it just the coupler, I am a little confused,thanks
    Post #13, last sentence - or click my username, open the profile. left column, lower part. 2 albums, 6 pages of parts and service pictures and diagrams for the 2000 and later Northstar and cars.

  2. #17
    gbrown2934 is offline Cadillac Owners Member
    Automobile(s): Seville SLS
    Join Date
    Dec 2012

    Re: Is this a cracked intake plenum? (see attached pics)

    Thanks for the info, found the rubber plenum with a big crack. Had a friend replace it for me, I read a few of the replacment procedures, my friend didnt have to remove the fuek rail save some time. Thanks again for the help.

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