Mercury Mariner owners have reported 37 problems related to steering wheel vibrate (under the steering category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Mercury Mariner based on all problems reported for the Mariner.
I too, have experienced a loss of power steering and an increasingly severe "shaking" of my steering wheel when it is working. I took the car to the mechanic and was told that I need to replace the entire steering column due to a failure of the electronic power steering. The garage told me after calling Ford dealer that it would cost me $1500 - $2000 with labor. . Read more...
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Power steering fails on start up and steering wheel vibrates while at stop.