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    LBZ: Black Smoke while crusing with new fuel demand

    I had to change my brakes on that side so I pulled off the wheel well cover and looked at the pipe coupleing and all looks ok and snug.
  2. P

    LBZ: Black Smoke while crusing with new fuel demand

    Howdy I am new to the forum but see there is a wealth of experience. I had a 2003 Yukon conversion a couple of years ago. A 2006 3/4 ton was the donor for engine and transmission. All was good until I had to replace leaking transmission lines where I had to disconnect the air filter and intake...
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