Exam 49: Wheel Alignment

What is the difference between a two wheel alignment and a four wheel alignment?

Front wheel toe changes as a car goes around a corner.

What can be caused by excessive negative caster?

Identify six prealignment checks that should be made before performing a wheel alignment.

After a two wheel alignment, the steering wheel on the vehicle is not centered. Technician A recommends a four wheel alignment to determine whether the rear wheels are parallel to one another and perpendicular to a common centerline. Technician B says if the steering wheel is not centered after an alignment, it should be pulled off the column and correctly positioned. Who is correct?

A vehicle set at the factory specification of 1/16 inch toe-in will have zero toe when driven at highway speeds.

Four-wheel alignment concepts are being discussed. Technician A says the wheels are adjusted to be parallel to one another. Technician B says the wheels are adjusted to be perpendicular to a common centerline. Who is correct?

What is SAI?

Correct ____________________ results from having all suspension parts in their correct location, in good condition, and aligned so that the rear wheels follow directly behind the front wheels while moving in a straight line.

A vehicle that has excessive setback on the right front is being diagnosed. Technician A says the problem could be caused by a bent lower control arm. Technician B says the problem could be caused by a misaligned front cradle. Who is correct?

When should wheel alignment be checked?

Which of the following is not a problem caused by excessive positive caster?

The difference of the sum of the rear toe from the geometric centerline of the vehicle is called the ____________________ angle.

Caster adjustments are normally made at the top of the strut assembly.

Many vehicles are designed to use ____________________ of various thickness to adjust camber and caster settings.

Identify three locations where front wheel camber may be adjusted.

A toe adjustment of 1/8 inch outside of specifications will have little effect on tire life.

Incorrect caster angles cause tire wear problems.

Road crown is being discussed. Technician A adds slightly more negative caster on the left side to compensate. Technician B adds slightly more positive camber on the right side. Who is correct?

Some vehicles allow the upper ball joint to be rotated 180 degrees to change the camber angle approximately ____________________ degree(s).