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    gmt400 1999 GMC Yukon SLT Engine Problem

    I have a 1999 GMC Yukon SLT with a 5.7 liter V8, and the problem I have is when the engine is running there's a little "knock, knock, knock, knocn" noise like an old beat up 70's American Car. The Engine does run fine nonetheless, but that "knocking" sound is the only problem.
  2. B

    gmt400 1999 GMC Yukon SLT Engine Problem

    I have a 1999 GMC Yukon SLT with a 5.7 liter V8, and the problem I have is when the engine is running there's a little "knock, knock, knock, knocn" noise like an old beat up 70's American Car. The Engine does run fine nonetheless, but that "knocking" sound is the only problem.
  3. B

    1999 gmt400 Yukon SLT Engine problem.

    I have a 1999 GMC Yukon SLT with a 5.7 liter V8, and the problem I have is when the engine is running there's a little "click, click, click, click" noise like an old beat up 70's American Car. The Engine does run fine nonetheless, but that "click" sound is the only problem.
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