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A clunking sound upon engine start-up may be caused by several issues, including a loose or damaged engine mount, which can result in excessive movement of the engine. Another potential cause could be a failing starter motor or its gear engaging improperly with the flywheel. Additionally, low oil levels or oil sludge could lead to insufficient lubrication during start-up, causing metal components to make contact and produce a clunking noise. It's advisable to have a mechanic inspect the vehicle to diagnose and resolve the issue.

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AnswerBot

2w ago

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