F 350 2WD Super Duty V10-6.8L (2009)
Poor Return/Sticky Steering
Poor return and sticky steering is used to described the poor return of the steering wheel to center after a turn or a steering correction.
Drift/Pull
Wheel Alignment Angles
F-Super Duty vehicle caster and camber correction requirements are factory determined. Adjusters are available to correct a caster/camber measurement
that does not meet specification. Before changing the production caster/camber adjuster, thoroughly inspect the suspension system to locate worn or
damaged components that may have caused the setting to change.
Drift/Pull
Pull is a tugging sensation, felt by the hands on the steering wheel, that must be overcome to keep the vehicle going straight.
Drift describes what a vehicle with this condition does with hands off the steering wheel.
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A vehicle-related drift/pull, on a flat road, will cause a consistent deviation from the straight-ahead path and require constant steering input in the
opposite direction to counteract the effect.
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Drift/pull may be induced by conditions external to the vehicle (for example, wind or road camber).
Nibble
Wheel Alignment Angles
F-Super Duty vehicle caster and camber correction requirements are factory determined. Adjusters are available to correct a caster/camber measurement
that does not meet specification. Before changing the production caster/camber adjuster, thoroughly inspect the suspension system to locate worn or
damaged components that may have caused the setting to change.
Nibble
Sometimes confused with shimmy, nibble is a condition resulting from tire interaction with various road surfaces and observed by the driver as small
rotational oscillations of the steering wheel.
Poor Groove Feel
Wheel Alignment Angles
F-Super Duty vehicle caster and camber correction requirements are factory determined. Adjusters are available to correct a caster/camber measurement
that does not meet specification. Before changing the production caster/camber adjuster, thoroughly inspect the suspension system to locate worn or
damaged components that may have caused the setting to change.
Poor Groove Feel
Poor groove feel is characterized by little or no buildup of turning effort felt in the steering wheel as the wheel is rocked slowly left and right within very
small turns around center or straight-ahead (under 20 degrees of steering wheel turn). Efforts may be said to be "flat on center".
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In the diagnosis of a driveability problem, it is important to understand the difference between wander and poor groove feel.
Shimmy
Wheel Alignment Angles
F-Super Duty vehicle caster and camber correction requirements are factory determined. Adjusters are available to correct a caster/camber measurement
that does not meet specification. Before changing the production caster/camber adjuster, thoroughly inspect the suspension system to locate worn or
damaged components that may have caused the setting to change.
Shimmy
Shimmy, as observed by the driver, is large, consistent, rotational oscillations of the steering wheel resulting from large, side-to-side (lateral) tire/wheel
movements.
