Mark LT 2WD V8-5.4L VIN 5 (2007)
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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 (i.e., wind, road camber).
Poor Groove Feel
Poor groove feel is characterized by little or no buildup of turning effort felt in the steering gear as the steering 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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Under 20 degrees of turn, most of the turning effort that builds up originates from gear teeth meshing in the steering gear. In this range, the
steering wheel is not yet turned enough to feel the effort from the self-aligning forces at the road wheel or tire patch.
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In the diagnosis of a driveability problem, it is critical to understand the difference between wander and poor groove feel.
