Jumat, 12 Juli 2013

How to Tighten the Steering on a Ford Crown Vic

How to Tighten the Steering on a Ford Crown Vic

Ford Motor Company has been producing cars bearing this nameplate from 1956 to the present day. A reputation for strength and reliability has made this model a favorite of law enforcement agencies and motorists for generations. Design changes have taken place over the years but the Crown Vic remains a full-framed rear-wheel drive vehicle. Steering looseness can greatly detract from the superior ride quality this model is known to afford. Accurate steering response delivers safe and precise handling while adding to the overall smooth operation of your Ford Crown Victoria.

Instructions

Front Suspension Checks

    1
    Size and brand of tire is imprinted on the sidewall.
    Size and brand of tire is imprinted on the sidewall.

    Inspect the car tires for abnormal wear or visible defects. Extreme uneven wear of front tire tread may indicate suspension component failure. Replace worn or defective tires because they will adversely affect handling characteristics. Check the size of all four tires. All should be the exact same size as specified by the manufacturer. Tires should be the same brand, since slight variations in dimension can exist between brands having the same size. Set tire pressure to specification for your Crown Vic model year.

    2
    Worn out shock absorbers can contribute to premature tire wear.
    Worn out shock absorbers can contribute to premature tire wear.

    Test the shock absorbers by pushing down repeatedly on the front bumper. Stop pushing and monitor the reaction of the car body. Continued bouncing after you stop pushing indicates weak shocks which should be replaced by a qualified professional. Perform this test on the rear shocks as well. Rear shock performance will affect steering on bumpy or uneven road surfaces. Drive the car slowly over a speed bump to test the shocks should you lack ability to bounce the car by hand. More than one bounce after a bump also signifies poor shock performance and indicates need for replacement.

    3
    Follow the owner's manual instructions and recommendations closely.
    Follow the owner's manual instructions and recommendations closely.

    Raise the front of the car with a jack until the front wheels are three inches off the ground. Place jack stands according to the owner's manual recommendation. Check wheel bearing run-out on the front tires one at a time. Grasp the tire with your hands at the 12 o'clock and 6 o'clock positions. Push with one hand while pulling with the other, alternating action in attempt to "wiggle" the tire. Acceptable limits in this plane are less than .010-inch and barely detectable. Easily detected movement requires wheel bearing service or replacement by a qualified professional.

    4

    Unlock the steering wheel by turning the ignition key to the run position without cranking the starter. Check steering components by grasping the passenger side front tire at the 3 o'clock and 9 o'clock positions and attempt to steer the tires back and forth. The tire movement should be uniform and smooth. Looseness felt at this time may indicate steering or suspension component failure and should be corrected by a qualified professional.

    5

    Remaining looseness at the steering wheel may be eliminated by steering gear sector shaft adjustment on Crown Vic models so equipped. Rack-and-pinion equipped models require replacement of the steering rack if looseness persists. Front-end alignment can also tighten steering response by calibrating tire movement and angle. Any of these services should be done by a qualified professional as incorrect procedure could result in loss of vehicle control and subsequent personal injury and property damage.

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