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  1. C

    5.7 vortec valve adjustment

    ok so I followed the manual to the letter on setting the valve lash and when I was finished about half of the rockers were loose. What am I doing wrong? I have spent way too much money on repairing this thing and I really don't want to bend a rod or pinch a hole through a piston lol
  2. C

    99 Yukon cylinder 4 missfire

    i know there are a ton of posts on misfires but I thought I would start my own thread for my specific case. Ok so here is what I have done already. New maf new o2's new plugs wires cap and rotor new pcm new valve cover gaskets. I have always had the cylinder 4 misfire and had a bunch of codes...

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