Research vehicle service information such as fluid type, vehicle service history, service precautions, technical service bulletins, and recalls including vehicles equipped with advanced driver assistance systems (ADAS).

Vehicle Service History

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VIN Code

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Identify suspension and steering system components and configurations.

Suspension and Steering System Information

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Retrieve and record DTCs, OBD monitor status, and freeze frame data; clear codes and data when directed.

Retrieve DTCs, Monitor Status & Freeze Frames

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Disable and enable supplemental restraint system (SRS); verify indicator lamp operation.

Identify and interpret suspension and steering system concerns; determine needed action.

Steering Problem Diagnosis

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Suspension Problem Diagnosis

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Inspect rack and pinion steering gear inner tie rod ends (sockets) and bellows boots; repair or replace as needed.

Inspect power steering fluid level and condition.

Drain and replace power steering system fluid; use proper fluid type per manufacturer specification.

Inspect for power steering fluid leakage; determine needed action.

Remove, inspect, replace, and/or adjust power steering pump drive belt.

Inspect, remove and/or replace power steering hoses and fittings.

Inspect, remove and/or replace pitman arm, relay (centerlink/intermediate) rod, idler arm and mountings, and steering linkage damper.

Inspect, replace, and/or adjust tie rod ends (sockets), tie rod sleeves, and clamps (non-rack and pinion).

Inspect and test electric power steering system; determine needed action.

Remove and replace steering wheel; center/time supplemental restraint system (SRS) coil (clock spring).

Diagnose steering column noises, looseness, and binding concerns (including tilt/telescoping mechanisms); determine needed action.

Diagnose power steering gear (non-rack and pinion) binding, uneven turning effort, looseness, hard steering, and noise concerns; determine needed action.

Diagnose power steering gear (rack and pinion) binding, uneven turning effort, looseness, hard steering, and noise concerns; determine needed action.

Inspect steering shaft universal-joint(s), flexible coupling(s), collapsible column, lock cylinder mechanism, and steering wheel; perform needed action.

Remove and replace rack and pinion steering gear; inspect mounting bushings and brackets.

Remove and reinstall power steering pump.

Remove and reinstall press fit power steering pump pulley; check pulley and belt alignment.

Test power steering system pressure; determine needed action.

Inspect, remove, and/or replace upper and/or lower control arms, bushings, and shafts.

Inspect and replace rebound/jounce bumpers.

Inspect, remove, and/or replace track bar, strut rods/radius arms, and related mounts and bushings.

Inspect, remove, and/or replace upper and/or lower ball joints (with or without wear indicators).

Inspect, remove, and/or replace suspension system coil springs and spring insulators.

Inspect, remove and/or replace torsion bars and mounts.

Inspect, remove and/or replace front/rear stabilizer bar (sway bar) bushings, brackets, and links.

Inspect, remove, and/or replace strut assembly, strut coil spring, insulators, and upper strut bearing mount.

Shock Absorber/Strut Cartridge Replacement

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Inspect, remove, and/or replace components of suspension systems (Coil, Leaf, and Torsion).

Strut Rod and Stabilizer Bushings

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Suspension Inspection/Component Replacement

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Torsion Bar

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Inspect, remove, and/or replace components of electronically controlled suspension systems.

Inspect, remove and/or replace steering knuckle assemblies.

Suspension Inspection/Component Replacement

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Diagnose suspension system noises, body sway, and uneven ride height concerns; determine needed action.

Inspect, remove, and/or replace shock absorbers; inspect mounts and bushings.

Inspect, service, and/or replace front and rear wheel bearings.

Wheel Bearing Diagnosis

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Wheel Bearing Service

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Describe the function of electronically controlled suspension and steering systems and components, (i.e., active suspension and stability control).

Perform pre-alignment inspection, measure vehicle ride height; determine needed action.

Pre-Alignment Inspection

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Describe four-wheel alignment angles (camber, caster, and toe) and effects on vehicle handling\tire wear.

Four-Wheel Alignment

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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.

Check toe-out-on-turns (turning radius); determine needed action.

Check steering axis inclination (SAI) and included angle; determine needed action.

Check rear wheel thrust angle; determine needed action.

Check for front wheel setback; determine needed action.

Identify front and/or rear cradle (subframe) misalignment; determine needed action.

Reset steering angle sensor

Diagnose vehicle wander, drift, pull, hard steering, bump steer, memory steer, torque steer, and steering return concerns; determine needed action.

Inspect tire condition; identify tire wear patterns; check for correct tire size, application (load and speed ratings) and air pressure as listed on the tire information placard/label.

Tire Inspection and Air Loss

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Rotate tires according to manufacturer’s recommendations including vehicles equipped with tire pressure monitoring systems (TPMS).

Dismount, inspect, and remount tire on wheel (with/without TPMS); balance wheel and tire assembly.

Inspect tire and wheel assembly for air loss; perform needed action.

Repair tire following vehicle manufacturer approved procedure.

Identify indirect and direct tire pressure monitoring systems (TPMS); calibrate/relearn system; verify operation of instrument panel lamps.

Demonstrate knowledge of steps required to remove and replace sensors (per OEM/sensor manufacturer) in a tire pressure monitoring system (TPMS).

Perform Road Force balance/match mounting.

Diagnose wheel/tire vibration, shimmy, and noise; determine needed action.

Measure wheel, tire, axle flange, and hub runout; determine needed action.

Diagnose tire pull problems; determine needed action.