Knock Noise from Steering When Turning, Going Over Bumps on Mercury Mariner
Problem overview
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.
10 people reported this problem
1 commentMercury Mariner vehicles with this problem
Average mileage: 90,333 miles
(36,000 - 120,000)
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