Suspension and steering
All of these could cause tire wear if not within manufacturer's specs EXPECT:
Caster
All of these are types of power steering pumps EXPECT:
Crescent
Technician has just installed a replacement for a failed power steering gear . Which of the following should he do next ?
Flush the system Reason: if you don't flush system after components failure damage. The new part after you uncertain . Due to old matter left inside the system .
All of the following suspension components are always replaced as a unit EXPECT
Idler arm Reason : some idler arm can be re-build
All of the following could warrant replacement of a rack - and pinion inner tie-rod end EXCEPT:
Incorrect rack bearing preload
Which of the following four-wheel alignment inspection and measurements sequences is correct ?
Ride height, rear camber , rear toe, front caster Reason: ride height always be set for an alignment when performing a four wheel alignment the rear should be adjusted 1st.
The included angle is equal to
SAI plus camber
The rear thrust line reads to the left (driver's) side while the vehicle is at normal ride height. If the wheels were pointing straight ahead, which direction would the vehicle tend to wander ?
Veer to the right Reason: this happens because the rear wheels will travel to the left. Which will force the front of the vehicle to the right
A customer complains that a vehicle wanders on a bunny road and needs continual driver correction to stay straight . What could be wrong ?
•excessive negative from caster •insufficient front toe •rear on front bump steer
Tire cupping is MOST Likely caused by
•worn shock absorbers •wheel imbalance •loose tie-rod ends
Which of the following is MOST likely to be lubricated and sealed by the manufacturer?
Ball bearings
On 4-wheel drive vehicle with a drag link steering, after the alignment is complete and correct, the steering wheel is turned to the left when the car is driving straight ahead . Technician A suggest removing the steering wheel and replacing it in an orientation closer to straight-ahead. Technician B suggest the advising the driver that linkage does not include enough adjustable to center the steering wheel. Who is right ?
Both A & B Reason : On four wheel drive system. Without an air bag some of the steering wheels can be re-indexed (straight )
A vehicle equipped with a manual rack-and-pinion steering is having the front end inspected. Technician A says that the inner tie-rod ends should be inspected while in their normal running position. Technician B says that if movement is felt between the tie rod ball and the socket while the tire is moved in and out, the inner tie-rod should be replaced. Who is right ?
Both A & B Reason: checking ride height with a load will generally. Show maximum wear any movement in any the tie rod should be repained
Technician A says that setback is caused by collision damage. Technician B says that setback can be designed into a vehicle. Who is right ?
Both A & B Reason: set back features then another tire (any ford)
A driver says that the front end of his car vibrates up-and-down while traveling at most road speeds . Technician A says that too much runout of the front wheels could be the cause. Technician B says that static out-of-balance of the front wheels could be the cause. Who is right ?
Both A & B Reason: to much runout , or out of balance conditions can cause a vibration
A vehicle has a noise coming from the power steering pump. Technician A says that a loose belt could be the cause. Technician B says that air in the system could be the cause. Who is right ?
Both A &B Reason; Air in the power steering system would create a growling noise . A loose belt will create a squealing noise .
A vehicle pulls to the right during braking. Technician A says that the problem is in the brake system, and the pull is most likely due to brake fluid on the lining or seized caliper piston . Technician B says that the pull could be caused by worn right side strut rod bushing . Who is right ?
Both A and B
Technician A says an electric/electronic power steering system uses inputs from various sensors to deliver the proper amount of power assist . Technician B says the steering turning programmed into the system control module determines the degree of power assist . who is right ?
Both A and B
Technician A says the measurement shown above will be incorrect if the wheel bearings are loose. Technician B says if the measurements shown above is excessive, it could be due to a wheel hub. Who is right?
Both A and B
A vehicle with power steering has no assist in either direction. Technician A says that oil leaking past a worm shaft seal ring could be the cause . Technician B says a broken ring on the worm piston could be the cause. Who is right ?
Both A and B Reason : A worm shaft oil ring or worm piston would cause the power steering. To have assist in only one direction
Excessive steering wheel play is felt in the steering wheel on a manual steering system. Technician A says that a worn idler arm could be the cause. Technician B says that maladjusted mesh preload may be the cause. Technician B says that a maladjusted mesh preload may be the cause. Who is right ?
Both A and B Reason : Mesh preload in the steering gears is the amount that the gears are put into one another. Too far apart you have loosen in the steering wheel . Too close together you will have to binding
Technician A says that the wheel bearings shown above can be adjusted using a torque wrench . Technician B says the bearings shown are adjusted using a dial indicator. Who is right ?
Both A and B Reason : Taber wheel bearing needs to be adjusted properly. If the bearing is set to tight it will burn up.If it's set to loose the wheels can shimmy
Technician A says that caster is not a tire-wearing angle. Technician B says that toe-in or toe-out will cause tire wear . Who is right?
Both A and B Reason: Caster is not tire wearing angle. Toe is the greatest tire wearing angle. Camber is the next wearing angle .
at the beggining of power steering system pressure test. With the shutoff valve open, the pressure reading is above specification with the fluid at normal operating temperature and the front wheel in the straight-ahead position. Technician A says there could be a restriction in the power steering pressure hose. Technician B says that the popper valve in steering gear could be the cause. Who is right
Both A and B Reason: Restriction in the power steering pressure hose & poppet valve in the steering gear
Technician A says that vehicle ride height is measured between the ground and the rocker panel. Technician B says that ride height is measured between suspension components. Who is right?
Both A and B Reason: allows consult manufacturers specifications
A vehicle equipped with a power steering exhibits excessive steering effort. All hydraulic system specification are correct and the alignment is within specifications. Technician A says that this condition may be caused by corrosion in the steering linkage ball studs. Technician B says that the intermediate shaft U-joints could be binding. Who is right ?
Both A and B Reason: any binding steering components can cause excessive steering effort. Which means steering shaft, bolt joints and tie rods .
A vehicle with power steering has no assist in either direction. Technician A says that a loose power steering belt could be cause . Technician B says that a faulty flow control valve could be the cause. Who is right ?
Both A and B Reason: either a loose belt or bad control valve will cause the steering to have no assist in either direction
Technician A says that the bearing preload must be set when overhauling a manual steering gear. Technician B says that the sector lash must be set when overhauling a manual steering gear. Who is right ?
Both A and B Reason: when rebuilding a steering box. Bearing preload and sector lash is very important. It the lash is too tight the steering gear will bind. If too loose their would be a lot of play in the steering wheel .
A vehicle with a manual rack-and pinion steering gear has a shimmy. Technician A says that worn rack-to-frame mounting bushings could be the cause. Technician B says that loose inner or outer tie-rod ends (sockets) could be the cause. Who is right ?
Both A and B Reason:Any looseness in the front end can cause a shimmy
While aligning a front end, a technician finds the toe-out on turns ( turning radius) to be greater than manufacturers spec and its has 2.0 degrees difference from the left side to the right side. Which, if any , of the following could be the cause ?
Both B& C •bent pitman arm •bent tie-rod Reason: toe-out on turns or SAI. If their out of spec means their something bent in front end . In this case , it might be bent pit-man arm or tie rod
Which of the following causes for ball joints replacements could also require steering knuckle replacement?
Broken ballstud Reason: Broken ballstud could damage the whole in the steering knuckle
If you readjust camber on the left front strut, which, if any, of of these specification might change?
Left toe and total toe Reason : when your readjust camber or caster it affects toe
All alignments measurements on a vehicle are within specification, expect for SAI and toe-out on turns. Technician A says that these alignment angles are not adjustable, so there is nothing more to do . Technician B says neither of these angles can cause tire wear. Who is right ?
Neither A or B
All four tires on a vehicle and indirect TPMS below inflation specification by equal amount and the TPMS warning light did not illuminate. Technician A the wheel speed sensors should be checked. Technician B says that all four sensors could be bad and that the problem is with the TPMS control module. Who is right?
Neither A or B
Technician A says that a power steering pump pulley should be pressed onto the pump shaft until it stops, to ensure proper pulley alignment. Technician B says that pulley replacement requires that the power steering pump replacement requires that the power steering pump be removed from the vehicle . Who is right ?
Neither A or B Reason: Pulley power steering can be removed in the vehicle it must be flush with the end of pump shaft . For proper alignment never put a pulley on until it stops bc you can damage the pump
Technician A says that dynamic wheel balancing can be accomplished with a bubble balancer. Technician B says that static wheel balancing requires a spin balancer. Who is right?
Neither A or B Reason: Static wheel balance can be done with a bubble balancer and Dynamic balancer is done with a spin balancer
All of the following will cause a tire to wear at the edge EXPECT:
Overinflation Reason: Overinflation like a big ballon it will swollen and inflate like a big balloon
All of the following could be caused by a misaligned subframe EXCEPT:
Poor ride quality
The above alignment setting would results in which of following conditions
Right tire wear on the inside, vehicle pulls to the left Reason: the vehcile will always pill to the side with (+) camber
A customer complains of excessive body roll. Which of the following components is used to control body roll.
Stabilizer bar Reason: Stabilizer bar controls body roll
When replacing an integral hub/bearing assembly on a front wheel drive vehicle, all of the following must be removed EXPECT.
Steering Knuckle
An upper control arm is being f removed from a late model vehicle with SLA suspension. Technician A says that lower arm should be supported with a jack stand close to the ball joint. Technician B says that the coil springs must be compressed with a springs compressed. Who is right
Technician A one
Shock absorbers are being installed in the rear of a rear wheel drive solid axle vehicle with a coil spring s. Technician A says the axle must be supported before the shock are removed . Technician B says that the coil spring must be compressed with a coil spring compressor. Who is right ?
Technician A only
Technician A says that , when on-vehicle balancing a drive axle tire, the opposite wheel must also be supported off the ground if the vehicle is equipped with a limited-slip differential. Technician B says that rotating on-vehicle balanced tired presents no special problems. Who is right?
Technician A only
Technician A says that lubricant can be used to help seat a tie on a wheel rim. Technician B says that if necessary, it's OK to exceed the maximum tire pressure rating to seat the bead, as long as pressure is reduced immediately afterward. Who is right
Technician A only
Technician A says that if steering axis inclination is out of specification, a bent control-arm may be the cause. Technician B says that if steering axis inclination is out of specification, the spindle can be shimmed to correct the problem. Who is right ?
Technician A only Reason : if you have SAI or Toe our on turns problem it's a bend component that should be replaced a spindle can't be spind
A vehicle with SLA-type suspension is being aligned. Caster and camber are adjusted using shims between the frame and upper control arm shaft . Technician A says that arranging shins to move the upper control arm toward the rear of the vehicle will increase caster. Technician B says that shimming the control arm out the frame will decrease camber. who is right?
Technician A only Reason: SAI camber (Caster , camber , toe-in )
A pressure test is being performed on a car with power steering. The pressure readings taken when the wheels are at the right and left stops are below specs. The tester readings readings are normal when the tester shutoff valve is closed. The tester reading are normal when the tester shutoff valve is closed . Technician A says that these readings could be caused by bad steering gear. Technician B says that a bad pump could cause these readings. Who is right ?
Technician A only Reason: The electronic assist gives more assist at low speeds & less assist in night speeds . Including, a bad steering gear will cause low readings at both steering stops but readings would be normal with the shut off valve closed
A vehicle suspension system is being checked for radial and axial tolerances. Technician A says the ball joints should be checked. Technician B says that the idler arm should be checked. Who is right ?
Technician A only Reason: when checking ratio and axial tolerance a experience of the ball joints should be torque. The idler arm would not affect either of those tolerances
A 1-ton pick-up trucks is in for an alignment. The pick-up truck usually carries some pipes and ladders on a rack attachment on the pick-ups bed. These items need to be removed in order to raise the truck on the alignment rack.After removing the items, the alignment technician realizes that the frame angle has increased by 1.5 degrees. The caster specification for the vehicle is 3.0 degrees. Technician A says that the caster should be adjusted to 1.5 degree in order to provide the best handling when the vehicle is loaded. Technician B says that the caster should be adjusted to 4.5 degree in order to provide the best handling when the vehicle is loaded. Who is right ?
Technician A only Reason: when compensating for weight should be subtracted the (+) fram angle
A vehicle with variable assist power steering has a lack of power assist in both directions. Technician A says that the problem is in the electronic control system. Technician B says that there could be a problem in the steering gear or a bad power steering pump. Who is right?
Technician B
A vehicle has front wheel shimmy at low speed and requires increased steering effort. Technician A says that too much (+) camber could be the cause. Technician B says that too much (+) caster could be the cause. Who is right ?
Technician B only
The K diameter shown above is below specification. Technician A says the rear shock absorbers should be replaced . Technician B says the rear springs should be replaced . Who is right ?
Technician B only
A car is raised on a lift with the wheels pointed straight ahead and when the engine is started, the wheels slowly turn to the right . Technician A says that a binding upper bearing on a McPherson struts or an improperly installed RBS tie-rod end could cause this condition. Technician B says the power steering valve is out of adjustment. Who is right?
Technician B only Reason : a binding upper bearing plate or incorrect installed tie rod. Will pull the steering wheel to a specific point. Then stop. Regardless, of weather the engine was or not . Since it this is only happen when engine is running the problem is the power steering valve is out of adjustment
A tire on an alloy wheel is being balanced. Technician A says that clip-on weight should be used. Technician B says that tape on weight should be used. Who is right ?
Technician B only Reason : don't use clip-on wheel weights on aluminum or alloy wheels because it can damage the finish even more. In the winter with road stall
The ball joints on McPherson strut-type suspension shown above are being replaced. Technician A says that a coil springs compressor should be installed before separating the control arm and the spindle. Technician B says that the wheel alignment should be checked after the ball joints have been replaced . Who is right ?
Technician B only Reason: On a MacPherson strut. You should only have to worry if you take off the top, big , nut . Including , on SLA system the springs should be chained before removing the ball joints. The alignment should always be checked after changing any steering or suspension part.
A customer complains that his vehicle stalls repeatedly while parallel parking. Technician A says that the AC valve is most likely cause. Technician B says that the power steering pressure sensor is at fault. Who is right ?
Technician B only Reason: Parallel repeatedly which parallel parking . If bad , IAC valve it will stall all the time
Technician A says that all vehicles with strut -type from suspension requires that the strut be removed to replace the front could springs. Technician B says that the coil springs should be compressed before removal from an SLA-type front suspension. Who is right ?
Technician B only Reason: Reason A is incorrect because if you remove strut in a modernfied MacPherson system springs can fly out .
Technician A says that the ride height of a vehicle is always adjustable. Technician B says that the ride height of a vehicle can only be adjusted on certain models. Who is right?
Technician B only Reason: Ride height is only to be set on air suspension & torqusion bar . Ride height must be set before alignment . If off side to side you must change the springs on both sides.
Technician A says an indirect measurement TIRE PRESSURE MONITORING SYSTEM (TPMS) use wheel speed sensors to measure tire pressure. Technician B says a direct measurement TPMS uses tire pressure sensors to measure tire pressure. Who is right ?
Technician B only Reason: indirect in TPMS tire system monitor the ABS sensor for wheel speed to see if any of the tire are low. The tire that is low would spin slower than the rest
A medium-duty light truck is on the alignment rack. Technician A points out that there is no arch at all in the rear leaf springs and says this indicates that the springs are either worn out or broken. Technician B says that this is a normal on newer trucks and is not a cause for concern. Who is right ?
Technician B only Reason: leaf springs in modern vehicles can be arched in either directions.
A customer is purchasing new front tire for her front wheel drive vehicle. Technician A says that the best way to balance the tire is to mount them in the vehicle and use an on-axle spin balancer. Technician B says the best way to balance the tire is to balance them on a spin balancing machine prior to installing. Who is right ?
Technician B only Reason: on car spin balancer proven to be dangerous and aren't used anymore
A vehicle just had new sway bar links and bushings installed. Technician A says that the wheels need to be straight-ahead with the front end supported before tightening the link's fasterners. Technician B says the vehicle should be resting level on its wheel at its normal ride height before the links fasteners are tightened. Who is right?
Technician B only Reason: should tighten all bushing with the vehicle sitting at ride height with the weight on it. Before, tightening the bushing for the longest possible life.
When checking a tire, a technician finds it to have too much radial (up-and-down) runout. Technician A says to rotate the tire and wheel assembly on the mounting studs to correct the problem. Technician B says to rotate the tire on the wheel assembly to attempt to bring the runout within specifications. Who is right?
Technician B only Reason: to fix tire runout. It's possible to rotate the tire on the rim to compensate for high & low spots
The suspension shown above is being checked for ball joint wear. Technician A says that the inspection can be made with the front end supported a point X. Technician B says that the inspection can be performed with the front end supported at point Y. Who is right?
Technician B only Reason: when the spring goes to the lower control arm you have to unload the spring to check the bolt joints for wear.
A vehicle with power steering is parked with the engine running. A hissing noise is heard when the steering wheel is turned back and fourth. Technician A says that the power steering pump could be bad. Technician B says that this sound is part of normal operation. Who is right?
Technician B only Reason: whining power steering pump should be replaced for air to be blend out of the system
When the suspension is worked up-and-down on a vehicle equipped with MacPherson strut-type suspension, the camber specification change more on one side than the other . Technician A says that camber can't be adjusted on a MacPherson strut. Technician B says that the strut on the side that camber change the most may be bent.
Technician B only Reason: the side that camber changes the most may be bent some MacPherson structs are adjustable but they have to be slide plates or cam bolts
A vehicle equipped with a MacPherson strut-type suspension is in the shop for new tires and an alignment. The tire installer noticed that the vehicle has some play in the left-side inner tie-rod end and informs the alignment technician. The alignment technician should tell the customer?
The inner tie-rod end needs to be replaced before an alignment can be performed Reason: never perform an alignment with loose suspension parts or it will not be Excelerator
All of the following are true of torsion bars EXPECT:
They are interchangeable from side-to-side
All of the following are true statement regarding tapered wheel bearing Expect:
They are mostly used on drive axles Reason : that would be correct would expect on a full flooded rear end assembly
On a vehicle with conventional steering gear and parallelogram steering linkage , an incorrect toe setting can be caused by all of the following EXPECT:
Too little worm bearing preload
Too much caster on the left wheel will cause the ?
Vehicle to drift to the right Reason: vehicle will steer or drift to the side with the least amount of camber
All of the following are methods used by manufacturers to attach ball joints to control arm EXPECT :
Welded on
All of the following are sensors in a electronically controlled suspension system Expect:
Wheel speed sensors Reason: some performance model they do modern the speed to lower the car on high speeds .
All of the following can cause incorrect vehicle ride height EXPECT :
Worn shock absorbers Reason: shock absorbers will NEVER affect ride height
