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Jun 25, 2024
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ATF 324 - Ford Steering/Suspension Credits: 3 Lecture Hours: 1 Lab Hours: 4 Practicum Hours: 0 Work Experience: 0 Course Type: Voc/Tech Instruction in the theory of operational service procedures used in the maintenance and repair of Ford Motor Company’s steering and suspension systems. Prerequisite: ATF 317 Corequisite: ATF 328 Competencies
- Assess Ford steering systems
- Identify types of steering systems.
- Identify steering linkage component nomenclature.
- Discuss power steering hydraulic theory.
- Determine power steering systems component nomenclature.
- Examine electronic steering systems.
- Evaluate Ford steering systems
- Diagnose steering column noises, looseness, and binding concerns (including tilt mechanisms); determine necessary action.
- Diagnose power steering gear (rack and pinion/non-rack and pinion) binding, uneven turning effort, looseness, hard steering, and noise concerns; determine necessary action.
- Evaluate steering system linkage; determine necessary action.
- Evaluate power steering system operation; determine necessary action.
- Flush, fill, and bleed power steering system.
- Examine Ford suspension systems
- Identify front suspension system design and nomenclature.
- Identify rear suspension system design and nomenclature.
- Explain the importance of correct curb height.
- Discuss design and operation of shock absorbers.
- Determine diagnostic procedure used to evaluate shock absorber serviceability.
- Discuss Electronic Level and Ride Control Systems.
- Interpret Ford suspension systems.
- Research applicable vehicle and service information, vehicle service history, service precautions, and technical service bulletins.
- Identify and interpret suspension and steering system concerns; determine necessary action.
- Diagnose short and long arm suspension system noises, body sway, and uneven ride height concerns; determine necessary action.
- Diagnose strut suspension system noises, body sway, and uneven ride height concerns; determine necessary action.
- Inspect, remove and install front suspension system components using correct tools and procedures.
- Inspect, remove and install rear suspension system components using correct tools and procedures.
- Diagnose ELC system concerns; determine necessary action.
- Service tire and wheel assemblies
- 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.
- Diagnose wheel/tire vibration, shimmy, and noise; determine necessary action.
- Measure wheel, tire, axle flange, and hub runout; determine necessary action.
- Diagnose tire pull problems; determine necessary action.
- Differentiate steering and suspension angles.
- Explain operation and purpose of caster angle.
- Describe operation and purpose of camber angle.
- Explain operation and purpose of steering axis inclination angle.
- Describe operation and purpose of the turning radius angle.
- Describe operation and purpose of toe angle.
- Differentiate between alignment types.
- Describe typical alignment adjustment procedures.
- Discuss alignment related handling concerns.
- Discuss non-alignment related handling concerns.
- Distinguish 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.
- Perform pre-alignment inspection and measure vehicle ride height; perform necessary action.
- 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 necessary action.
- Check SAI (steering axis inclination) and included angle; determine necessary action.
- Check rear wheel thrust angle; determine necessary action.
- Check for front wheel setback; determine necessary action.
- Check front and/or rear cradle (sub-frame) alignment; determine necessary action.
- Reset steering angle sensor.
- Characterize Noise, Harshness, and Vibrations (NVH
- Explain terms related to NVH.
- Diagnose NVH concerns.
Competencies Revised Date: 2020
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