AUT 112 - Intro to AutoTech II

1. Identify Vehicle Manufacturer’s Recommended Service Procedures.
   1. Research applicable vehicle and service information, vehicle service history, service precautions, and technical service bulletins.
   2. Perform diagnosis and repair as needed.
2. Analyze Engine Repair.
   1. Verify operation of the instrument panel engine warning indicators.
   2. Inspect engine assembly for fuel, oil, coolant, and other leaks; determine necessary action.
   3. Perform cylinder cranking and running compression tests; determine necessary action.
   4. Perform cylinder leakage test; determine necessary action.
   5. Identify hybrid vehicle internal combustion engine service precautions.
   6. Perform cooling system pressure and dye tests to identify leaks; check coolant condition and level; inspect and test radiator, pressure cap, coolant recovery tank, and heater core and galley plugs; determine necessary action.
   7. Inspect, replace, and adjust drive belts, tensioners, and pulleys; check pulley and belt alignment.
   8. Remove, inspect, and replace thermostat and gasket/seal.
   9. Inspect and test coolant; drain and recover coolant; flush and refill cooling system with recommended coolant; bleed air as required.
   10. Perform engine oil and filter change.
3. Evaluate Fuel, Air Induction, and Exhaust Systems.
   1. Replace fuel filter.
   2. Inspect, service, or replace air filters, filter housings, and intake duct work.
   3. Inspect integrity of the exhaust manifold, exhaust pipes, muffler(s), catalytic converter(s), resonator(s), tail pipe(s), and heat shields; determine necessary action.
   4. Inspect condition of exhaust system hangers, brackets, clamps, and heat shields; repair or replace as needed.
   5. Check and refill diesel exhaust fluid (DEF).
4. Examine Automatic Transmission and Transaxle.
   1. Check fluid level in a transmission or a transaxle equipped with a dip-stick.
   2. Check fluid level in a transmission or a transaxle not equipped with a dip-stick.
   3. Check transmission fluid condition; check for leaks.
   4. Inspect, adjust, and replace external manual valve shift linkage, transmission range sensor/switch, and park/neutral position switch.
   5. Inspect for leakage at external seals, gaskets, and bushings.
   6. Inspect replace and align power train mounts.
   7. Drain and replace fluid and filter(s).
   8. Describe the operational characteristics of a continuously variable transmission (CVT).
   9. Describe the operational characteristics of a hybrid vehicle drive train.
5. Examine Manual Transmission and Transaxle.
   1. Drain and refill manual transmission/transaxle and final drive unit.
   2. Check fluid condition; check for leaks.
   3. Check and adjust clutch master cylinder fluid level; check for system leaks.
   4. Describe the operational characteristics of an electronically-controlled manual transmission/transaxle.
   5. Inspect, remove, and replace front wheel drive (FWD) bearings, hubs, and seals.
   6. Inspect, service, and replace shafts, yokes, boots, and universal/CV joints.
   7. Clean and inspect differential housing; check for leaks; inspect housing vent.
   8. Drain and refill differential housing; Check and adjust differential housing fluid level.
   9. Inspect and replace drive axle wheel studs.
   10. Inspect front-wheel bearings and locking hubs.
   11. Check for leaks at drive assembly seals; check vents; check lube level.
6. Evaluate Steering Systems.
   1. Inspect rack and pinion steering gear inner tie rod ends (sockets) and bellows boots.
   2. Determine proper power steering fluid type; inspect fluid level and condition.
   3. Flush, fill, and bleed power steering system.
   4. Inspect for power steering fluid leakage; determine necessary action.
   5. Remove, inspect, replace, and adjust power steering pump drive belt.
   6. Inspect and replace power steering hoses and fittings.
   7. Inspect pitman arm, relay (centerlink/intermediate) rod, idler arm and mountings, and steering linkage damper.
   8. Inspect tie rod ends (sockets), tie rod sleeves, and clamps.
   9. Inspect electric power-assisted steering.
   10. Identify hybrid vehicle power steering system electrical circuits and safety precautions.
   11. Describe the function of the power steering pressure switch.
7. Analyze Suspension Systems.
   1. Inspect upper and lower control arms, bushings, and shafts.
   2. Inspect and replace rebound and jounce bumpers.
   3. Inspect track bar, strut rods/radius arms, and related mounts and bushings.
   4. Inspect upper and lower ball joints (with or without wear indicators).
   5. Inspect suspension system coil springs and spring insulators (silencers).
   6. Inspect suspension system torsion bars and mounts.
   7. Inspect and replace front stabilizer bar (sway bar) bushings, brackets, and links.
   8. Inspect strut cartridge or assembly.
   9. Inspect front strut bearing and mount.
   10. Inspect rear suspension system lateral links/arms (track bars), control (trailing) arms.
   11. Inspect rear suspension system leaf spring(s), spring insulators (silencers), shackles, brackets, bushings, center pins/bolts, and mounts.
   12. Inspect, remove, and replace shock absorbers; inspect mounts and bushings.
   13. Perform pre-alignment inspection and measure vehicle ride height; determine necessary action.
8. Evaluate Hydraulic Brake Systems.
   1. Describe procedure for performing a road test to check brake system operation, including an anti-lock brake system (ABS).
   2. Check operation of brake stop light system.
   3. Identify components of brake warning light system.
   4. Measure brake pedal height, travel, and free play (as applicable); determine necessary action.
   5. Check master cylinder for external leaks and proper operation.
   6. Inspect brake lines, flexible hoses, and fittings for leaks, dents, kinks, rust, cracks, bulging, wear, loose fittings and supports; determine necessary action.
   7. Select, handle, store, and fill brake fluids to proper level.
   8. Test brake fluid for contamination; Bleed and/or flush brake system as needed.
   9. Check brake pedal travel with, and without, engine running to verify proper power booster operation.
   10. Check vacuum supply (manifold or auxiliary pump) to vacuum-type power booster.
   11. Remove, clean, inspect, repack, and install wheel bearings; replace seals; install hub and adjust bearings; Replace wheel bearing and race as needed.
   12. Inspect and replace wheel studs.
9. Analyze Disc Brake Systems.
   1. Remove and clean caliper assembly; inspect for leaks and damage/wear to caliper housing; determine necessary action.
   2. Clean and inspect caliper mounting and slides/pins for proper operation, wear, and damage; determine necessary action.
   3. Remove, inspect, and replace pads and retaining hardware; determine necessary action.
   4. Lubricate and reinstall caliper, pads, and related hardware; seat pads and inspect for leaks.
   5. Clean and inspect rotor, measure rotor thickness, thickness variation, and lateral runout; determine necessary action.
   6. Remove and reinstall rotor.
   7. Refinish rotor on vehicle; measure final rotor thickness and compare with specifications.
   8. Refinish rotor off vehicle; measure final rotor thickness and compare with specifications.
   9. Retract and re-adjust caliper piston on an integral parking brake system.
   10. Check parking brake cables and components for wear, binding, and corrosion; clean, lubricate, adjust or replace as needed; Check parking brake and parking brake indicator light system operation; determine necessary action.
   11. Check brake pad wear indicator; determine necessary action.
   12. Describe importance of operating vehicle to burnish/break-in replacement brake pads according to manufacturer’s recommendations.
10. Evaluate Drum Brake Systems.
    1. Remove, clean, inspect, and measure brake drum diameter; determine necessary action.
    2. Refinish brake drum and measure final drum diameter; compare with specifications.
    3. Remove, clean, and inspect brake shoes, springs, pins, clips, levers, adjusters/self-adjusters, other related brake hardware, and backing support plates; lubricate and reassemble.
    4. Inspect wheel cylinders for leaks and proper operation; remove and replace as needed.
    5. Check parking brake cables and components for wear, binding, and corrosion; clean, lubricate, adjust or replace as needed.
    6. Pre-adjust brake shoes and parking brake; install brake drums or drum/hub assemblies and wheel bearings; make final checks and adjustments.
    7. Check parking brake and parking brake indicator light system operation; determine necessary action.
11. Examine Electronic Braking Systems.
    1. Identify traction control/vehicle stability control system components.
    2. Describe the operation of a regenerative braking system.
12. Analyze Heating and Air Conditioning Systems.
    1. Inspect and replace A/C compressor drive belts, pulleys, and tensioners; determine necessary action.
    2. Identify hybrid vehicle A/C system electrical circuits and the service/safety precautions.
    3. Inspect A/C condenser for airflow restrictions; determine necessary action.
    4. Inspect engine cooling and heater systems hoses; perform necessary action.
    5. Inspect A/C-heater ducts, doors, hoses, cabin filters, and outlets; perform necessary action.
    6. Identify the source of A/C system odors.