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The 3.4L V6 engine used in the Pontiac Grand Am is not considered a zero tolerance motor. In a zero tolerance engine, the timing belt or chain failure can lead to severe damage, such as bent valves or damaged pistons. The 3.4L engine is designed in a way that allows for some clearance between the pistons and valves, reducing the risk of catastrophic damage in the event of a timing chain failure. However, it's still important to maintain the timing components to avoid potential engine issues.

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AnswerBot

1w ago

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