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How would you adjust a rack yoke bearing? - ANSWERSTighten, then look at OEM specifications and back off by the suggested amount of degrees. If a customer states that their steering wheel turns more to the left than to the right, what are some of the most likely causes? - ANSWERS- Incorrectly timed steering gear - Bent pitman arm - Bent tie rod A customer says that their vehicle is difficult to steer, but only in one direction. What is the most likely cause? - ANSWERSA faulty or leaking power steering gear. What could a shifted front cradle affect? - ANSWERS- Front camber - Front caster - Thrust angle What is one thing that spring eye bushings and worn strut bushings could cause? - ANSWERSA pull on acceleration and deceleration. Why is camber angle important? - ANSWERSIt is a tire wear angle and can cause a pull in the steering. What could happen if a composite leaf spring is scratched during installation? - ANSWERSIf the spring is dented or scratched it will be weakened and break more easily. Vehicles with high caster settings are most likely to use a ___________ ____________ to help control front-wheel shimmy - ANSWERSSteering damper A popping noise while turning the steering wheel is most likely caused by? - ANSWERSWorn front tie rods What is the most likely cause of a power steering hose leaking on a vehicle? - ANSWERSSeparated motor mounts What angle has the greatest affect on steering wheel return? - ANSWERSCaster At over 30 mph there is a vibration in the steering wheel, what is the most likely cause of this? - ANSWERSThe front wheels are out of balance What is the most likely result if the left front wheel is set at one degree negative caster, and the right front is set at one degree positive caster? - ANSWERSThe car will pull to the left, or the most negative caster setting. True or False: Camber and SAI make up the included angle? - ANSWERSTrue True or False: The purpose of the turning angle is to reduce tire scuffing during cornering - ANSWERSTrue True or False: Shims are sometimes used to adjust rear toe and camber - ANSWERSTrue True or False: Strut rods are sometimes used to adjust rear toe and camber - ANSWERSTrue If the back of the rear tires are closer together than the front, what is the cause? - ANSWERSToe-out The jounce bumpers on the rear of a vehicle are out, what are some of the more likely causes? - ANSWERS- Worn rear springs - Excessive cargo in the trunk - Worn rear shocks A customer is complaining about noise from the rear of the vehicle, what are some of the more likely causes? - ANSWERS- Worn rear wheel bearings - Missing spring separators - Worn spring eye bushings True or False: Torsion bars can be used on SLA suspensions - ANSWERSTrue What is one of the most likely causes for toe-out-on-turns to be out of specification? - ANSWERSBent steering arm How do you correctly adjust tapered roller bearings? - ANSWERSTorque the bearing while rotating the wheel, and then back off by the OEM indicated amount If a vehicle with an air ride suspension won't lower when necessary, what is the most likely cause? - ANSWERSThe sensor isn't sending the signal that the rear is too hight What alignment angle would cause dog-tracking? - ANSWERSRear toe If a steering wheel is installed incorrectly, and rear toe is out of adjustment, what would be one of the major symptoms seen? - ANSWERSCrooked steering wheel while driving When does a positive camber angle exist? - ANSWERSWhen the top of the tire leans outwards If the rear tires of a vehicle have a diagonal wear pattern, what is the most likely cause? - ANSWERSIncorrect rear toe If a customer complains that their car makes more noise on asphalt than on concrete, what is on of the likely causes of this? - ANSWERSThe tires have an aggressive tread pattern A customer is hearing a roaring noise while driving, and it gets louder as speed increases. What is one of the most likely causes? - ANSWERSWorn wheel bearing There is a car that requires a setback during an alignment, what is one major cause of this? - ANSWERSA worn spring eye bushing could have allowed the rear axle to shift What is the most common cause of a whining noise heard only while turning? - ANSWERSWorn power steering pump If you replace the front leaf springs of a vehicle, what other service must you do? - ANSWERSAlignment What is a primary cause of a worn jounce bumper? - ANSWERSLeaking shocks What alignment angle does a worn idler arm effect? - ANSWERSToe If the hole in the steering knuckle is out of round, what is the best way to repair it? - ANSWERSReplace the steering knuckle What is the most likely cause of a left front tire showing outside tread wear? - ANSWERSIncorrect camber adjustment