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Thread: f-fish bite, but,..

  1. #1
    Join Date
    Dec 2009
    Location
    In the North
    Posts
    700

    Default f-fish bite, but,..

    under a hard pull the truck sometimes has had 2 quick hard fish bites in a row,. has happened 2-3 times in 3 months? starts great,. never misses a beat and doesn't always do the fish bite,..
    of course i,m carrying a spare pmd like all good 6.5 owners,.
    In the past,anytime i,ve had a pmd fail, its usually a few fishbites with a stall then game over,. this time it isn't dying?

    can a fuel problem exhibit the same symptoms? Truck has plenty of power,.

    thanks
    1999 chev suburban C2500
    300,000 mi

  2. #2
    Join Date
    Jan 2019
    Location
    Hodges, SC
    Posts
    7

    Default

    Could be air intrusion under load. Put a clear hose on the IP return and look for bubbles while running
    2000 6.5 Chevrolet K3500 Longbed 4 Door, 4L80E, Turbo Master, Gooseneck Hitch, 300,000 miles original engine

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