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Thread: Vacuum leak at power brake booster nipple

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  1. #1
    Join Date
    Dec 2008
    Location
    san antonio TX
    Posts
    1,365
    my truck is also throwing a lean bank1 code p0171is this caused by a vacum leak

  2. #2
    Quote Originally Posted by lechez71 View Post
    my truck is also throwing a lean bank1 code p0171is this caused by a vacum leak
    It could be

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