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Mercury Mariner

Report: Knock Noise from Steering When Turning, Going Over Bumps

Mercury Mariner Problem
5 Reports
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Model Years Affected: 2005, 2006, 2007

Average Mileage: 75,500 mi (36,000 mi - 115,000 mi)

Verified

A defective power steering return line can cause a knocking noise when turning or going over bumps, especially when the engine has reached normal operating temperature. The power steering return line should be replaced.

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