Mechanics

PONTIAC GRAND AM GAS PROBLEM

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.
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March 18, 2013.



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