• Tiny
  • Anonymous
  • 1999 Pontiac Grand Am
  • 176,000 miles

3.4 liter v6: There is a knocking sound coming from under the hood on the top end of the engine. I have replaced intake manifold gasket, valve cover gaskets, and rod bearings before. I need help because nothing is seeming to fix the problem.

Monday, March 18th, 2013 AT 2:55 PM

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