Milan FWD V6-3.0L (2010)
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, road crown).
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A drift or pull condition may exist even if the front alignment is within specifications. To aid in correcting this condition, there are 4 additional
upper control arms available with off-set bushings (2 for LH, 2 for RH). These upper control arms will allow the caster to be adjusted ±0.4
degrees. Refer to Caster Adjustment - Front See: Service and Repair/Caster Adjustment - Front.
Nibble
Wheel Alignment Angles
Front toe is adjusted through the use of adjustable tie-rod ends. Front caster is adjusted by installing new upper control arms with offset bushings. The
upper arms can adjust caster angles ± 0.4 degrees and have separate part numbers. Front camber is not adjustable on the vehicle. Rear toe is adjusted
through the use of adjustable toe links. Rear caster is not adjustable on the vehicle. Rear camber is adjusted through the use of a cam bolt that attaches
the rear lower control arm to the rear subframe.
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. For wheel and tire diagnosis, refer to Wheels and Tires.
Poor Groove Feel
Wheel Alignment Angles
Front toe is adjusted through the use of adjustable tie-rod ends. Front caster is adjusted by installing new upper control arms with offset bushings. The
upper arms can adjust caster angles ± 0.4 degrees and have separate part numbers. Front camber is not adjustable on the vehicle. Rear toe is adjusted
through the use of adjustable toe links. Rear caster is not adjustable on the vehicle. Rear camber is adjusted through the use of a cam bolt that attaches
the rear lower control arm to the rear subframe.
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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Under 20 degrees of turn, most of the turning effort that builds up comes from the mesh of gear teeth 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 roadability problem, it is important to understand the difference between wander and poor groove feel.
Poor Returnability/Sticky Steering
Wheel Alignment Angles
Front toe is adjusted through the use of adjustable tie-rod ends. Front caster is adjusted by installing new upper control arms with offset bushings. The
upper arms can adjust caster angles ± 0.4 degrees and have separate part numbers. Front camber is not adjustable on the vehicle. Rear toe is adjusted
through the use of adjustable toe links. Rear caster is not adjustable on the vehicle. Rear camber is adjusted through the use of a cam bolt that attaches
the rear lower control arm to the rear subframe.
Poor Returnability/Sticky Steering
Poor returnability and sticky steering is used to describe poor return of the steering wheel to center after a turn or steering correction.
Shimmy
Wheel Alignment Angles
Front toe is adjusted through the use of adjustable tie-rod ends. Front caster is adjusted by installing new upper control arms with offset bushings. The
upper arms can adjust caster angles ± 0.4 degrees and have separate part numbers. Front camber is not adjustable on the vehicle. Rear toe is adjusted
through the use of adjustable toe links. Rear caster is not adjustable on the vehicle. Rear camber is adjusted through the use of a cam bolt that attaches
the rear lower control arm to the rear subframe.
