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2013 NATEF Task Area A-4
Suspension, Steering, Alignment7-2013
• A. Steering System Diagnosis & Repair
• B. Suspension System Diagnosis & Repair
• C. Wheel Alignment Diagnosis & Adjustment
• D. Wheel & Tire Diagnosis & Repair
Typical Rubric for NATEF Competencies
1 = Demonstrated Exposure and has observed the competency
2 = Applies the competency but only mastered a few essential attributes
3 = Capable of the competency but needs further practice
4 = Performs the competency satisfactorily [Proficient]
5 = Mastered the competency [Exemplary]
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
A. General Suspension and Steering System Diagnosis
Research applicable vehicle and service information, vehicle service history,
service precautions, and technical service bulletins.
A4.A.1
P-1
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
A. General Suspension and Steering System Diagnosis
Identify and interpret suspension and steering system concerns; determine
necessary action.
A4.A.2
P-1
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
A. General Suspension and Steering System Diagnosis
Complete work order to include customer information, vehicle identifying
information, verify customer concern, related service history, cause, & correction.
“Oldie”
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
A. General Suspension and Steering System Diagnosis
Locate and interpret vehicle and major component identification numbers (VIN,
vehicle certification labels, & calibration decals).
“Oldie”
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
B. Steering Systems Diagnosis and Repair
Disable and enable supplemental restraint system (SRS). A4.B.1
P-1
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
B. Steering Systems Diagnosis and Repair
Remove and replace steering wheel; center/time supplemental restraint system
(SRS) coil (clock spring).
A4.B.2
P-1
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
B. Steering Systems Diagnosis and Repair
Diagnose steering column noises, looseness, and binding concerns (including tilt
mechanisms); determine necessary action.
A4.B.3
P-2
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
B. Steering Systems Diagnosis and Repair
Diagnose power steering gear (non-rack and pinion) binding, uneven turning
effort, looseness, hard steering, and noise concerns; determine necessary action.
A4.B.4
P-2
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
B. Steering Systems Diagnosis and Repair
Diagnose power steering gear (rack and pinion) binding, uneven turning effort,
looseness, hard steering, and noise concerns; determine necessary action.
A4.B.5
P-2
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
B. Steering Systems Diagnosis and Repair
Inspect steering shaft universal-joint(s), flexible coupling(s), collapsible column,
lock cylinder mechanism, and steering wheel; perform necessary action.
A4.B.6
P-2
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
B. Steering Systems Diagnosis and Repair
Adjust manual or power non-rack & pinion worm bearing preload & sector lash. “Oldie”
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
B. Steering Systems Diagnosis and Repair
Remove and replace rack and pinion steering gear; inspect mounting bushings
and brackets.
A4.B.7
P-2
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
B. Steering Systems Diagnosis and Repair
Inspect rack and pinion steering gear inner tie rod ends (sockets) and bellows
boots; replace as needed.
A4.B.8
P-2
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
B. Steering Systems Diagnosis and Repair
Determine proper power steering fluid type; inspect fluid level and condition. A4.B.9
P-1
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
B. Steering Systems Diagnosis and Repair
Flush, fill, and bleed power steering system. A4.B.10
P-2
http://www.bgams.com/steering-symptoms.html
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
B. Steering Systems Diagnosis and Repair
Inspect for power steering fluid leakage; determine necessary action. A4.B.11
P-1
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
B. Steering Systems Diagnosis and Repair
Remove, inspect, replace, and adjust power steering pump drive belt. A4.B.12
P-1
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
B. Steering Systems Diagnosis and Repair
Remove and reinstall power steering pump. A4.B.13
P-2
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
B. Steering Systems Diagnosis and Repair
Remove and reinstall press fit power steering pump pulley; check pulley and belt
alignment.
A4.B.14
P-1
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
B. Steering Systems Diagnosis and Repair
Inspect and replace power steering hoses and fittings. A4.B.15
P-2
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
B. Steering Systems Diagnosis and Repair
Replace power steering pump filter(s). “Oldie”
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
B. Steering Systems Diagnosis and Repair
Inspect and replace pitman arm, relay (center link/intermediate) rod, idler arm
and mountings, and steering linkage damper.
A4.B.16
P-1
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
B. Steering Systems Diagnosis and Repair
Inspect, replace, and adjust tie rod ends (sockets), tie rod sleeves, and clamps. A4.B.17
P-2
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
B. Steering Systems Diagnosis and Repair
Test and diagnose components of electronically-controlled steering systems using
a scan tool; determine necessary action.
A4.B.18
P-1
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
B. Steering Systems Diagnosis and Repair
Identify hybrid vehicle power steering system electrical circuits and safety
precautions.
A4.B.19
P-3
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
B. Steering Systems Diagnosis and Repair
Inspect electric power assist steering. A4.B.19
P-2
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
C. Suspension Systems Diagnosis and Repair
Diagnose short and long arm suspension system noises, body sway, and uneven
ride height concerns; determine necessary action.
A4.C.1
P-1
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
C. Suspension Systems Diagnosis and Repair
Diagnose strut suspension system noises, body sway, and uneven ride height
concerns; determine necessary action.
A4.C.2
P-1
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
C. Suspension Systems Diagnosis and Repair
Inspect, remove and install upper and lower control arms, bushings, shafts, and
rebound bumpers.
A4.C.3
P-3
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
C. Suspension Systems Diagnosis and Repair
Inspect, remove and install strut rods and bushings. A4.C.4
P-3
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
C. Suspension Systems Diagnosis and Repair
Inspect, remove and install upper and/or lower ball joints (with or without wear indicators). A4.C.5
P-2
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
C. Suspension Systems Diagnosis and Repair
Inspect, remove and install steering knuckle assemblies. A4.C.6
P-3
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
C. Suspension Systems Diagnosis and Repair
Inspect, remove and install short and long arm suspension system coil springs and
spring insulators.
A4.C.7
P-3
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
C. Suspension Systems Diagnosis and Repair
Inspect, remove and install torsion bars and mounts. A4.C.8
P-3
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
C. Suspension Systems Diagnosis and Repair
Inspect, remove and install stabilizer bar (sway bar) bushings, brackets, and links. A4.C.9
P-3
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
C. Suspension Systems Diagnosis and Repair
Inspect, remove and install strut cartridge or assembly, strut coil spring,
insulators (silencers), and upper strut bearing mount.
A4.C.10
P-3
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
C. Suspension Systems Diagnosis and Repair
Lubricate suspension and steering system pivot points. (Grease Job) “Oldie”
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
C. Suspension Systems Diagnosis and Repair
Remove, inspect, and install coil springs and spring insulators. “Oldie”
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
C. Suspension Systems Diagnosis and Repair
Inspect, remove and install track bar, strut rods/radius arms, and related mounts
and bushings.
A4.C.11
P-3
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
C. Suspension Systems Diagnosis and Repair
Inspect rear suspension system leaf spring(s), bushings, center pins/bolts, and
mounts.
A4.C.12
P-1
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
C. Suspension Systems Diagnosis and Repair
Inspect electric power-assisted steering. (suspension?) “Oldie”
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
C. Suspension Systems Diagnosis and Repair
Diagnose, inspect, adjust, repair or replace components of electronically controlled
suspension systems using a scan tool; determine necessary action.
“Oldie”
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
C. Suspension Systems Diagnosis and Repair
Remove, inspect, and install strut cartridge or assembly, strut coil spring and
insulators (silencers).
“Oldie”
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
D. Related Suspension and Steering Service
Inspect, remove, and replace shock absorbers; inspect mounts and bushings. A4.D.1
P-1
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
D. Related Suspension and Steering Service
Remove, inspect, and service or replace front and rear wheel bearings. A4.D.2
P-1
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
D. Related Suspension and Steering Service
Describe the function of the power steering pressure switch. A4.D.3
P-3
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
E. Wheel Alignment Diagnosis, Adjustment, and Repair
Diagnose vehicle wander, drift, pull, hard steering, bump steer, memory steer,
torque steer, and steering return concerns; determine necessary action.
A4.E.1
P-1
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
E. Wheel Alignment Diagnosis, Adjustment, and Repair
Perform pre-alignment inspection and measure vehicle ride height; perform
necessary action.
A4.E.2
P-1
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
E. Wheel Alignment Diagnosis, Adjustment, and Repair
Measure vehicle riding height; determine necessary action. “Oldie”
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
E. Wheel Alignment Diagnosis, Adjustment, and Repair
Prepare vehicle for wheel alignment on alignment machine; perform four-wheel
alignment by checking and adjusting front and rear wheel caster, camber; and toe
as required; center steering wheel.
A4.E.3
P-1
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
E. Wheel Alignment Diagnosis, Adjustment, and Repair
Check and adjust front and rear wheel camber; perform necessary action. “Oldie”
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
E. Wheel Alignment Diagnosis, Adjustment, and Repair
Check and adjust caster; perform necessary action. “Oldie”
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
E. Wheel Alignment Diagnosis, Adjustment, and Repair
Check and adjust front wheel toe and center steering wheel. “Oldie”
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
E. Wheel Alignment Diagnosis, Adjustment, and Repair
Check toe-out-on-turns (turning radius); determine necessary action. A4.E.4
P-2
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
E. Wheel Alignment Diagnosis, Adjustment, and Repair
Check SAI (steering axis inclination) & included angle; determine necessary action. A4.E.5
P-2
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
E. Wheel Alignment Diagnosis, Adjustment, and Repair
Check and adjust rear wheel camber & toe. “Oldie”
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
E. Wheel Alignment Diagnosis, Adjustment, and Repair
Check rear wheel thrust angle; determine necessary action. A4.E.6
P-1
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
E. Wheel Alignment Diagnosis, Adjustment, and Repair
Check for front wheel setback; determine necessary action. A4.E.7
P-2
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
E. Wheel Alignment Diagnosis, Adjustment, and Repair
Check front and/or rear cradle (subframe) alignment; determine necessary action. A4.E.8
P-3
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
E. Wheel Alignment Diagnosis, Adjustment, and Repair
Reset steering angle sensor. A4.E.9
P-2
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
F. Wheel and Tire Diagnosis & Repair
Inspect tire condition; identify tire wear patterns; check for correct tire size and
application (load and speed ratings) and adjust air pressure; determine necessary
action.
A4.F.1
P-1
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
F. Wheel and Tire Diagnosis & Repair
Diagnose tire wear patterns; determine necessary action. “Oldie”
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
F. Wheel and Tire Diagnosis & Repair
Diagnose wheel/tire vibration, shimmy, and noise; determine necessary action. A4.F.2
P-2
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
F. Wheel and Tire Diagnosis & Repair
Rotate tires according to manufacturer’s recommendations. A4.F.3
P-1
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
F. Wheel and Tire Diagnosis & Repair
Inspect tires; check and adjust air pressure. “Oldie”
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
F. Wheel and Tire Diagnosis & Repair
Measure wheel, tire, axle flange, and hub runout; determine necessary action. A4.F.4
P-2
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
F. Wheel and Tire Diagnosis & Repair
Diagnose tire pull problems; determine necessary action. A4.F.5
P-2
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
F. Wheel and Tire Diagnosis & Repair
Dismount, inspect, and remount tire on wheel; balance wheel and tire assembly
(static and dynamic).
A4.F.6
P-1
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
F. Wheel and Tire Diagnosis & Repair
Dismount, inspect, and remount tire on wheel equipped with tire pressure
monitoring system sensor.
A4.F.7
P-2
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
F. Wheel and Tire Diagnosis & Repair
Inspect tire and wheel assembly for air loss; perform necessary action. A4.E.8
P-1
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
F. Wheel and Tire Diagnosis & Repair
Repair tire using internal patch. A4.E.9
P-1
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
F. Wheel and Tire Diagnosis & Repair
Identify and test tire pressure monitoring system (indirect and direct) for
operation; calibrate system; verify operation of instrument panel lamps.
A4.E.10
P-2
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
F. Wheel and Tire Diagnosis & Repair
Demonstrate knowledge of steps required to remove and replace sensors in a tire
pressure monitoring system.
A4.E.11
P-1
NATEF Task Area A-4 Suspension, Steering, Alignment, and Tires
F. Wheel and Tire Diagnosis & Repair
Reinstall wheel; torque lug nuts using correct specification & sequence. “Oldie”