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dy conner
dy conner 4/9/2010
1996 Chevrolet S10 Base 6Cyl4.3L - Engine
knocking sounds front top of motor
changed heads, pushrods, timing assembly.wristpin or balancing shaft
1 Answer
  • yboy82
    yboy82 9/7/2010
    Did you already check the condition of your main connecting rod bearing and its oil supply? It is possible that insufficient oil supply in your connecting rod bearing causes the knocking sound.

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