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rod knock

  1. Identify this noise - Rod Bearings or Tappet?

    9000 Workshop
    This is a 1997 SAAB Aero just rolled over to 130,000 miles. Noise came on in about 3 miles of driving. I can't figure out if this noise is from rod bearings or a stuck tappet. http://www.youtube.com/watch?v=RaqCkFAMxSY#t=1m38s The whole two-minute video is here...
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