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275 Cards in this Set

  • Front
  • Back
Advantages of a large Positive scrub radius
The tire rolls while turned, resulting in reduced steering effort when parking.

More room in the engine bay
advantage of Negative Scrub radius
provides center point steering in the event of a tire deflation, which provides greater stability and steering control in this emergency situation.
Advantage of a small positive scrub radius
that the steering becomes less sensitive to braking inputs, in particular.
Disadvantage of a small positive scrub radius
the contact patch is spun in place when parking, which takes a lot more effort
Scrub radius is...
the distance in front view between the king pin axis and the center of the contact patch of the wheel, where both would theoretically touch the road
The steering axis inclination (SAI) is
the angle between the centerline of the steering axis and vertical line from center contact area of the tire (as viewed from the front).
Negative scrub radius
Positive scrub radius
zero scrub radus
T/F
Loose front wheel bearing adjustment may cause steering wander while driving straight ahead
True
T/F
Negative caster settings may cause steering wander while driving straight ahead
True
When performing a sector lash adjustment on a recirculating ball steering gear, the worm shaft is positioned (...)
in the center of its travel
T/F
A leaking rack piston seal may cause a power rack and pinion gear to have excessive steering effort in both directions
True
T/F
A leaking inner rack seel may cause a power rack and pinion gear to have excessive steering effort in both directions
False

This will increase steering effort in only one direction
T/F
A leaking outer rack bulkhead seal may cause a power rack and pinion gear to have excessive steering effort in both directions
False

This will increase steering effort in only one direction
T/F
A loose rack bearing adjustment may cause a power rack and pinion gear to have excessive steering effort in both directions
False
this will reduce steering effort
T/F
A faulty power steering gear may cause a PS pump to have less than specified pressure during a pressure test.
False

A valve in the tester closes the hose between the pump and the gear
T/F
A sticking pump pressure relief valve may cause a PS pump to have less than specified pressure during a pressure test.
True
T/F

A bent or damaged rack in the steering gear may cause a power rack an pinion steering system to have poor steering wheel returnability.
False
It will cause erratic steering effort
T/F
Excessive negative caster may cause a power rack an pinion steering system to have poor steering wheel returnability.
True
T/F
Worn steering gear mounting bushings may cause bump steer on a vehicle with power rack and pinion steering
True
worn steering gear mounting bushings may cause unequal tie rod height, the cause of bump steer
T/F
Worn upper strut mounts may cause bump steer on a vehicle with power rack and pinion steering
False
Worn upper strut mounts don't cause unequal tie rod height
The root cause of bump steer is (...)
Enequal tie rod height
T/F
An open compressor vent valve may cause the front suspension trim height on a computer controlled air suspension system to be less than spec
False
one or more of the air spring solenoids must also be open to vent air from the springs and cause low trim height
T/F
Misadjusted front height sensors may cause the front suspension trim height on a computer controlled air suspension system to be less than spec
True
While parking a car with four-wheel steering, the rear wheels...
steer about five degrees in the opposite direction of the front wheels
T/F
A loose powersteering belt may cause fluid foaming to occur in a power steering pump reservoir.
False
T/F
Fluid contamination may cause fluid foaming to occur in a power steering pump reservoir.
True
A variable assist power steering system provides...
Increased pump pressure at low speeds
T/F
Improper dynamic wheel balance may cause the customer to complain about front wheel shimmy
True
T/F

Excessive toe-in on the front wheels may cause the customer to complain about front wheel shimmy
False
T/F
Excessive poitive caster on the front wheels may cause the customer to complain about front wheel shimmy
True
T/F
Sagged springs in the rear suspension may cause the customer to complain about front wheel shimmy
True
T/F
More toe out on the right rear wheel than on the left rear wheel may cause the steering wheel to pull to the right while driving straight ahead
False
T/F
More positive camber on the left front wheel than on the right front wheel may cause the steering wheel to pull to the right while driving straight ahead
False
T/F
More toe out on turns on the left front wheel than on the right front wheel may cause the steering wheel to pull to the right while driving straight ahead
False
T/F
More positive caster on the left front wheel than on the right front wheel may cause the steering wheel to pull to the right while driving straight ahead
True
During a shock absorber bounce test, if the chassis completes one free upward bounce before the vertical chassis movement stos, the shock abosrber is...
good
T/F
Excessive difference between the left and right SAI may cause a vehicle with a macpherson strut front supsension to pull to the left while braking.
True
T/F
Excessive positive camber on the left rear wheel may cause a vehicle with a macpherson strut front supsension to pull to the left while braking.
False
T/F
A worn flexible coupling may cause a steering wheel to have excessive freeplay with all linkages and column mounted and installed
True
T/F
Loose steering gear mounting bolts may cause a steering wheel to have excessive of freeplay with all linkages and column mounted and installed
True
Steering wheel free play should not exceed (...)
~1.2 in. (30 mm)
T/F
If the bolt head is touching the bracket on a collapsible steering column bracket, it should be replaced
True
T/F
If the bolt head is touching the bracket on a collapsible steering column bracket, the shear load is too small.
False
T/F
If the bolt head is touching the bracket on a collapsible steering column bracket, the shear load is too hight.
T/F
Some air bag systems are disarmed by disconnecting the battery cable and waiting for the specified amouont of time
True
T/F
Air bag system disarming on some vehicles includes disconnecting the air bag system fuse
True
T/F
The surface of deployed airbags may be coated with sodium bicarbonate
False
they may be coated with sodium hydroxide
T/F
After the air bag system has been disarmed and enabled the arbag system warning light operation indcates proper system function
True
T/F
a loose worm bearing preload adjustment may cause excessive steering effort on a manual steering gear (non rack and pinion)
False
A loose worm bearing preload adjustment will cause excessve steering wheel free play
T/F
an overfilled steering gear may cause excessive steering effort on a manual steering gear (non rack and pinion)
False
T/F
Less than spec positive caster may cause excessive steering effort on a manual steering gear (non rack and pinion)
False
reduced caster reduces steering effort
T/F
A tight sector lead lash adjustment may cause excessive steering effort on a manual steering gear (non rack and pinion)
True
A tight worm bearing on a manual steering gear (non rack and pinion)may result in...
excessive steering effort
T/F
A loose rack bearing adjustment may result in poor returnability on a manual rack and pinion steering gear
False
a loose rack bearing adjust ment results in excessive steering wheel freeplay
T/F
Insufficient or improper lubricant in the steering gear may result in poor returnability on a manual rack and pinion steering gear
True
T/F
loose steering gear mounting bolts may result in poor returnability on a manual rack and pinion steering gear
False
Loos steering gear mounting bolts may result in excessive steering wheel freeplay
T/F
Excessive positive camber on both front wheels may result in poor returnability on a manual rack and pinion steering gear
False
Excessive positive camber results in excessive wear on the outside edge of the tire treads
The normal operating temperature of power steering fluid is...
175 Deg F. (80 Deg C)
when checking PS pump belt tension, for every foot of free span, belt deflection should be...
1/2 inch
T/F
Reduced PS pump belt tension may result in increased or erratic steering effort
True
T/F
A loose PS belt may cause squealing during acceleration
True
T/F
A misaligned PS pump may cause premature belt wear
True
T/F
Pressed on PS pump pulleys may require the use of a special tool to remove and install
True
T/F
A faulty drive shaft seal may cause a fluid leak between the reservoir and the pump housing on a pump with integral reservoir.
False
T/F
A restricted vent in the pump cap may cause a fluid leak between the reservoir and the pump housing on a pump with integral reservoir.
False
T/F
A faluty housing O-ring may cause a fluid leak between the reservoir and the pump housing on a pump with integral reservoir.
True
During a power steering pump pressure test, the pressure gauge valve should be closed for a maximum of (...) seconds.
Ten
1.
2.
3.
1.
2.
3.
1. power steering gearbox
2. power steering pump
3. power steering oil tank
manual steering system
power rack and pinion
Power steering gear
power steering pump
manual steering gear
T/F
A defective steering gear may cause excessive turning effort even though the pump pressure is satisfactory.
True
T/F
A restricted high pressure hose may cause excessive turning effort even though the pump pressure is satisfactory.
True
a restricted High Pressure hose may cause excessive turning effort, without causing the system to fail a pressure test
(non rack and pinion)
Rotating the steering wheel while the steering gear is disconnected from the shaft may result in...
an improperly centered clockspring
T/F
Rotating the steering wheel with the steering gear disconnected may damage the clockspring electrical connector
True
T/F
After the negative battery cable is disconnected, immediately begin the steering gear removal process
False
You may have to wait due to proper air bag procedures
T/F
During a powersteering gear adjustment (worm shaft bearing preload), after the adjuster plug is bottomed out, it should be tightened to 20 ft lb
True
after tightening to 20 ft lb, you may need to back of .050 in.
T/F
During a powersteering gear adjustment, the adjuster plug should be backed off 1/4 turn from the bottomed position
False
T/F
The worm shaft bearing preload must be adjusted after the bearing and seal installation in the adjuster plug
True
T/F
the part number on the needle bearing should face the driving tool when installing the adjuster plug bearing
True
T/F
a misaligned steering gear may cause poor steering wheel returnablity on power rack and pinion systems
false
T/F
an overtight rack bearing adjustment may cause poor steering wheel returnablity on power rack and pinion systems
True
due to increased steering effort as a result of the overtight rack bearing adjustment
T/F
Inner tie rod ends may be retained on the rack with a steel pin
True
T/F
Inner tie rod ends may be retained on the rack with with a claw washer
True
T/F
Inner tie rod ends may be retained on the rack by being threaded onto the rack
True
T/F
If foaming is present in the reservoir after bleeding air from the system, the procedure must be repeated
True
T/F
During PS bleding, each time the steering wheel is rotated fully to the right or left, it should be held for two or three seconds
True
A power steering system should be drained from...
The return hose
when bleeding the power steering system using the steering wheel, the engine should be held at (...) rpm
1,000
T/F
on variable assist power steering systems, the steering assist is increased at speeds above 50 mph
False
T/F
the power steering assist is increased when the steering wheel rotation exceeds 15 rpm
True
Bump steer may result if the steering arms and lower control arms are ...
not parallel
excessive idler arm movement may cause (...), (...), (...), and (...)
front wheel shimmy, steering looseness, improper tie rod alignment with the lower control arms, and bump steer.
variable assist power steering systems receive signals from the (...), and (...)
Vehicle Speed Sensor, and Steering wheel rotation sensor
T/F
A misadjusted steering gear may cause bump steer
False
T/F
A bent pitman arm may cause bump steer
True
T/F
A loose or misadjusted Idler arm may cause bump steer
True
other names for center link:
relay rod, drag link, intermidiate rod
T/F
A bent relay rod may change front wheel toe setting
True
T/F
A bent relay rod may cause front tire wear on the inside edges
False
Improper front wheel Toe may cause (...) tire wear
Feathered
T/F
Worn lower ball joints may cause excessive steering effort. on a PS system with a properly adjusted belt and fluid level.
False
T/F
Weak front springs may cause excessive steering effort. on a PS system with a properly adjusted belt and fluid level.
False
T/F
a seized idler arm may cause excessive steering effort. on a PS system with a properly adjusted belt and fluid level.
True
T/F
a weak stabilizer bar may cause excessive steering effort. on a PS system with a properly adjusted belt and fluid level.
False
T/F
Vise grips or a pipe wrench should be used to rotate tie rod sleeves
False
T/F
tie rod sleeve clamps must have the openings lined up with the openings in the tie rod sleeve.
False
T/F
a scored power steering gear cylinder may cause a 4wd vehicle to have excessive road shock on the steering wheel while driving on irregular road surfaces
False
T/F
a worn out steering damper may cause a 4wd vehicle to have excessive road shock on the steering wheel while driving on irregular road surfaces
True
T/F
A scored power steering gear cylinder will reduce steering effort
False
The steering damper is usually connected from the (...) to the (...)
Relay rod (drag link) to the chassis
T/F
Worn out struts may cause the front suspension height to be less than specified on a macpherson strut system.
False
T/F
worn upper strut mounts may cause the front suspension height to be less than specified on a macpherson strut system.
False
T/F
worn steering gear mounting bushings may cause the front suspension height to be less than specified on a macpherson strut system.
False
T/F
worn lower control arm bushings may cause the front suspension height to be less than specified on a macpherson strut system.
True
macphearson strut
double wishbone suspension
(upper and lower A-arm)
SLA is a type of...
double wishbone independent suspension
Short Long Arm
T/F
worn upper and lower ball joints may result in severely damaged rebound bumpers
False
T/F
Defective front shocks may result in severely damaged rebound bumpers
True
T/F
a worn right fron strut rod bushing may cuse a vehicle with satsifactory brake equipment to pull to the right while braking,
True
T/F
Excessive negative camber on the right front wheel may cuse a vehicle with satsifactory brake equipment to pull to the right while braking,
False
T/F
Excessive negative camber on one front wheel will casue steering pull to the opposite side
True
T/F
a worn right front strut rod bushing may result in the lower control arm moving rearward while braking
True
T/F
Ride height should always be one of the first checks when performing wheel alignment
True
Strut rods are connected from (...) to the (...).
Lower control arrm to the chassis
Stut rods prevent (...) and (...) movement of the lower control arm
Fore and Aft
Steering pulls to the side with the (...) positive caster
Least
In order to measure ball joint wear, the vehicle weight must be...
unloaded from the ball joints
when the coil spring is betwen the lower control arm and the chassis on a SLA suspension, unloading the vehicle weight from the ball joints may requre...
jacking the vehicle up from the lower control arm
when the coil spring is betwen the upper control arm and the chassis , unloading the vehicle weight from the ball joints may requre...
lifting from the chassis with a steel spacer between the upper control arm and the chasis
T/F
Installing a different shim between the front axle and the leaf spring may correct right front tire tread wear on the inside edge
False
T/F
replacing the rear spring shackle may correct right front tire tread wear on the inside edge
False
T/F
The shims between the front axle and the leaf spring are used to adjust camber
False
the are used to adjust caster
T/F
Wear on the inside edge of the tire is caused by excessive ...
Negative camber
Tire Wear:
Feathering
Toe adjustment
inner/outer wear
Camber
excessive wear on the center of tire
over inflation
Excessive wear on the outer edges of tire
Under inflation
T/F
a bent steering arm may cause excessive tire squeal while cornering
True
T/F
excessive negative caster may cause excessive tire squeal while cornering
false
T/F
worn stabilizer bushings may cause excessive tire squeal while cornering
false
T/F
worn out front struts may cause excessive tire squeal while cornering
false
Excessive tire squeal while cornering is caused by incorrect (...) angle
Toe angle
T/F
Bent steering arms and knuckles must be replaced, never repaired.
True
(...) spring
(...) spring
linear rate
(...) spring
(...) spring
Variable rate
T/F
When using a spring compressor to remove a coil spring from a strut, the spring should be taped in the areas where the compressor contacts the spring
True
T/F
When using a spring compressor to remove a coil spring from a strut, all the spring tension must be removed from the upper strut mount before loosening the strut or rod nut
True
T/F
coil springs may be replaced individually
False
T/F
steering pull to the right with a SLA front and leaf spring rear may be caused by a broken center bolt in the rear spring
True
T/F
steering pull to the right with a SLA front and leaf spring rear may be caused by more positive caster on the left front wheel than the right front wheel
True
T/F
steering pull to the right with a SLA front and leaf spring rear may be caused by more positive camber on the right front wheel than the left front wheel
True
T/F
steering pull to the right with a SLA front and leaf spring rear may be caused by excessive toe in on front wheels
False
The steering may pull to the side with (...) positive camber
More
T/F
Broken center pins on rear leaf springs may affect vehicle tracking and cause steering pull
True
T/F
lower than specified suspension height on the right front of a torsion bar suspension with satisfactory height on the left front may be caused by worn lower control arm bushings
True
T/F
lower than specified suspension height on the right front of a torsion bar suspension with satisfactory height on the left front may be caused by the right front torsion bar anchor bolt being out of adjustment
True
T/F
Worn lower control arm bushings may cause reduced ride height
True
T/F
excessive body sway while cornering may be caused by worn strut rod bushings
false
T/F
excessive body sway while cornering may be caused by a weak stabilizer bar
true
T/F
excessive body sway while cornering may be caused by worn stabilizer bar bushings
true
T/F
excessive body sway while cornering may be caused by a broken stabilizer link
true
Worn strut rod bushing may cause...
steering wander while driving and rattling or
clunking while driving or braking on rough roads
T/F
on some vehicles the strut cartridge can be installed with the strut still installed in the vehicle
True
T/F
A damaged upper strut mount may result in strut chatter while cornering on a macphearson strut system
True
T/F
A worn lower ball joint may cause steering chatter while cornering on a macphearson strut system
False
T/F
A damaged upper strut mount may result in improper camber or caster angles on the front suspsension
True
T/F
Faulty rear struts may cause harsh riding and bottoming out of the rear suspension
True
T/F
less than specified rear ride height may cause harsh riding and bottoming out of the rear suspension
True
A worn track bar or bushings may cause (...) in the rear suspension
Excessive lateral movement
Many ball joints use the (...) as a wear indicator
Grease fitting
T/F
A worn ball joint may cause improper wheel camber
True
T/F
A bent rear spindle may cause feathered tread wear similar to a toe-in situation
True
During a rear wheel hub bearing adjustment :
Step 1.
tighten the bearing adjustment nut to 17-25 ft lbs
During a rear wheel hub bearing adjustment :
Step 2.
back of the adjustment nut 1/2 turn
During a rear wheel hub bearing adjustment :
Step 3.
tighten the adjustment nut to 10-15 in lbs
During a rear wheel hub bearing adjustment :
Step 4.
install the nut retainer and cotter key
T/F
the on/off switch of an electronically controlled suspension should be switched off when towing
true
T/F
the on/off switch of an electronically controlled suspension should be switched off when jacking up the vehicle
true
T/F
the on/off switch of an electronically controlled suspension should be switched off when hoisting the vehicle on a lift
true
T/F
the on/off switch of an electronically controlled suspension should be switched off when diagnosing the system with a scanner
False
T/F
the subframe (cradle) may be measured at various locations to determine if it is bent
True
T/F
some subframes (cradles) have an alignment hole that must be aligned with a hole in the chassis
True
T/F
In an electronic power steering system the electric motor that proiveds steering assist is mounted seperately from the steering gear
False
T/F
In an electronic power steering system the Vehicle speed sensor voltage signals are sent directly from the vss to the eps control unit
false
T/F
In an electronic power steering system the steering sensor is mounted in the steering gear housing so it senses rack movement
False
T/F
In an electronic power steering system, if the car has a manual transaxle a differential speed sensor is used in place of the vss
True
T/F
In an electronic power steering system the steering sensor is mounted in the ...
pinion shaft assembly
On some systems, when the power steering pressure exceeds the specified value, the PCM may shut off the ... to prevent stalling
A/C compressor
On some systems, when the power steering pressure exceeds the specified value, the PCM may operate the... to prevent stalling.
Idle Air Control motor
Steering pulls to the side with the most (...) camber
Positive
Torque steer may be caused by (...) on FWD vehicles
enequal length drive axles
T/F
Increased steering effort and rapid steering wheel return after cornering may be a result of both front wheels having a negative camber seting
False
T/F
Increased steering effort and rapid steering wheel return after cornering may be a result of reduced rear suspension cur riding height.
True
Reduced rear suspension curb riding height may cause (...) (...) caster on the front wheels.
excessive positive
T/F
Rear wheel camber may be adjusted by elongating the strut to knuckle bolt hole with a file on macphearson strut systems.
True
T/F
Rear wheel camber may be adjusted by moving the upper strut mount in elongated slots on macphearson strut systems
False
T/F
When equal shims are installed on both front control arms of a SLA front supsension, Camber is reduced
True
T/F
When equal shims are installed on both front control arms of a SLA front supsension, caster is increased
False
T/F
When equal shims are installed on both front control arms of a SLA front supsension, caster is reduced
False
T/F
When equal shims are installed on both front control arms of a SLA front supsension, SAI angle decreases
False
On an SLA suspension, the upper control arm length is (...) compared to the lower control arm.
Shorter
T/F
Excessive positive caster on the front suspension may cause harsh riding on the front suspension, excessive steering effort and rapid wheel return
True
T/F
A more than specified included angle on the front suspension may cause harsh riding on the front suspension, excessive steering effort and rapid wheel return
False
included angle is the sum of...
Camber and SAI angles
Camber and SAI angles
Less than specified caster may cause (...) while driving straight ahead
Reduced directional stability
T/F
Caster is measured with the front wheels straight ahead
False
T/F
the front wheels are turned 20 deg outward and then 20 deg inward to read the caster angle
true
T/F
The brakes must be applied with a brake pedal jack before reading the caster angle
True
T/F
The front suspenion should be jounced several times before reading the caster angle
true
T/F
The front wheels must be in the straight ahead position when meausring front wheel toe
True
T/F
the front wheel toe whould be adjusted before the caster angle on the front suspension
False
T/F
after the toe adjustment, the steering wheel must be centered with the front wheels straight ahead
True
T/F
While adjusting front wheel toe, a tie rod sleeve rotating tool must be used to turn the tie rod sleeves.
true
Front wheel toe should be measured (...) the caster is adjusted.

(before/after)
after
T/F
The steering wheel is slightly rotated left after the toe is set to spec, legnthening the left and shortening the right tie rod will correct this.
false
T/F
The steering wheel is slightly rotated left after the toes is set to spec, rotating each tie rod sleeve 2 turns will correct this.
False
Shortenging the left tie rod and legnthening the right will turn the wheel toward the...
right
Rotating both tie rod sleeves will (...) turn will move the steering wheel 1 inch
1/4
The turning radius is usually (...) degrees more than the turning radius on the wheel on the outside of the turn
2
If the steering radius is not within spec, the (...) may be bent.
steering arms
If the steering radius is not within spec, the (...) may be worn
Tie rod ends
on a macphearson strut suspension, SAI is the angle between the true verticle centerline of the (...) and a line through the center of the (...) and (...)
tire, lower ball joint, upper strut mount
on SLA suspensions, the SAI is a line through...
the upper and lower ball joints
SAI is always viewed from...
the front of the vehicle.
inproper king pin inclination on an I-beam front suspension may be caused by...
a bent front axle or worn king pin bushings
The max variance between left and right SAI angles is usually...
1.5 deg
excessive included angle variance on front wheels is brobably caused by (...) on one of the wheels.
improper SAI
Improper SAI is most often caused by improper (...) position, or bent (...)
improper strut tower or subframe (cradle) position,
or bent crossmember or lower control arms
Excessive toe out on the left rear may cause steering pull to the...
right
A thust line positioned right of the geometric centerline may be caused by excessive...
A thust line positioned right of the geometric centerline may be caused by excessive...
Toe out on the right rear wheel.
The vehicle pulls to the (...) side of the thrust angle
The vehicle pulls to the (...) side of the thrust angle
Opposite
on a non independant rear axle assembly, the entire rear axle assembly may be turned slightly in one direction. this is called...
rear axle offset
T/F
Front wheel setback is usually caused by worn suspension parts
false
T/F
a slight front wheel setback causes steering wheel pull
False
Front wheel setback is usually caused by...
collision damage
Only (...) front wheel setback may cause steering pull.
excessive
T/F
A FWD vehicle has excessive positive camber on the left front, and excessive negative camber on the right front wheel, this may be caused by the cradle (subframe) shifting to the right
True
T/F
A FWD vehicle has excessive positive camber on the left front, and excessive negative camber on the right front wheel, this may be caused by a bent left front lower control arm
False
Cupped tire tread wear is most often caused by...
wheel imbalance
T/F
Replacing only the rear tires with considerably larger than OEM specs, may cause reduced front wheel positive caster and directional stability
True
T/F
Replacing only the rear tires with considerably larger than OEM specs, may cause increased positive camber on the front wheels and increased front tire tread wear
False
T/F
Replacing only the rear tires with considerably larger than OEM specs, may cause increased steering effort
False
T/F
Replacing only the rear tires with ones considerably larger than OEM specs, may cause rapid steering wheel return.
False
T/F
Front wheel shimmy may be caused by excessive toe out
False
T/F
Front wheel shimmy may be caused by inproper wheel balance
True
T/F
Front wheel shimmy may be caused by excessive front wheel setback
false
T/F
Front wheel shimmy may be caused by excessive positive camber
False
T/F
Front wheel shimmy may be caused by excessive positive caster
True
T/F
Front wheel shimmy may be caused by loose steering wheel components
True
tire radial runout describes...
...describes the deviation of the tire’s roundness from a perfect circle
Tire lateral runout
describes the deviation of the tire’s sidewall from a perfect plane
this rotation pattern can be used on (...) vehicles
this rotation pattern can be used on (...) vehicles
Rwd and 4wd
this rotation pattern can be used on (...) vehicles
this rotation pattern can be used on (...) vehicles
FWD
T/F
Rear chassis waddle may be caused by a steel belt in a tire that is not straight
true
T/F
Rear chassis waddle may be caused by a bent rear hub flange
True
T/F
Steering pull to the left may be due to the front tires having two different tread designs
True
T/F
Steering pull to the left may be due to one of the front tires having a conicity problem
True
Tire Conicity is ...
the characteristic that describes the tire’s tendency to roll like a cone
Tire Conicity is caused during...
the manufacturing process
tires should be placed on the tire changer with the narrow bead ledge facing...
upward
when performing sector lash adjustment on a recirculating ball steering gear, the steering gear is in the center position and the steering shaft is rotated through a 45 degree arc with an inch pound torque wrench. the sector lash adjustment should be rotated in...
a clock wise direction
If the worm shaft bearings are too loose...
the worm shaft can move sideways and up and down during operation
OVER CENTER CLEARANCE...
Controls the amount of play between the pitman arm shaft gear (sector) and the teeth on the ball nut. It is the most critical adjustment affecting steering wheel play.
Disconnect the pitman arm from the pitman arm shaft. Loosen the pitman arm shaft overcenter adjusting locknut and screw out the adjusting screw a couple of turns. Then turn the steering wheel from side to side slowly
worm-bearing preload step one
Using a torque wrench or spring scale, measure the amount of force required to turn the steering wheel to the CENTER position. Note the reading on the torque wrench or the spring scale and compare it to the manufacturers specifications
worm-bearing preload step two
If readings are out of specifications. loosen the worm-bearing locknut. Then tighten the worm bearing adjustment nut to increase the preload. Loosen it to decrease preload and turning effort. With the preload set to specifications. tighten the locknut. Make sure the steering wheel turns freely from stop to stop
worm-bearing preload step three
Most rack-and-pinion systems have a rack guide adjustment screw. This screw is adjusted when...
there is excessive play in the steering
Basic procedure for adjusting rack-and-pinion steering system step one
Loosen the locknut on the adjusting screw
Basic procedure for adjusting rack-and-pinion steering system step two
turn the rack guide screw until it bottoms slightly
Basic procedure for adjusting rack-and-pinion steering system step three
Back off the rack guide screw the recommended amount (approximately 45 degrees or until the prescribed turning effort is achieved)