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Driveline Service

AGM 216

Driveline Service

AGM 216

Course Description

Prerequisite: AGM 143. Studies GM passenger car and light truck clutch, manual transmission, driveshaft, differential, transaxle, front driving axle, and transfer case terminology, operation, and diagnosis. Develops skills in diagnosis, adjustment, and repair of clutches, manual transmissions, driveshafts, differentials, transaxles, front driving axles, and transfer cases. Credit may be earned in AGM 216 or SKGM 216 or ACD 216 or AGM 231 but not in more than one. (60-60)

Outcomes and Objectives

Diagnose general drive train. Complete 95% of Priority 1, 80% of Priority 2, and 50% of Priority 3 NATEF tasks as listed below.

Objectives:

  • Research applicable vehicle and service information, such as drive train system operation, vehicle service history, service precautions, and technical service bulletins. P-1
  • Locate and interpret vehicle and major component identification numbers (VIN, vehicle certification labels, calibration decals). P-1
  • Diagnose fluid usage, level, and condition concerns; determine necessary action. P-1
  • Drain and fill manual transmission/transaxle and final drive unit. P-2

Diagnose and repair transmission/transaxle. Complete 95% of Priority 1, 80% of Priority 2, and 50% of Priority 3 NATEF tasks as listed below.

Objectives:

  • Disassemble, clean, and reassemble transmission/transaxle components. P-2
  • Inspect transmission/transaxle case, extension housing, case mating surfaces, bores, bushings, and vents; perform necessary action. P-3
  • Diagnose noise, hard shifting, jumping out of gear, and fluid leakage concerns; determine necessary action. P-2
  • Inspect, adjust, and reinstall shift linkages, brackets, bushings, cables, pivots, and levers. P-2
  • Inspect and reinstall powertrain mounts. P-3
  • Inspect and replace gaskets, seals, and sealants; inspect sealing surfaces. P-2
  • Inspect and reinstall synchronizer hub, sleeve, keys (inserts), springs, and blocking rings. P-2
  • Inspect and reinstall speedometer drive gear, driven gear, vehicle speed sensor (VSS), and retainers. P-2
  • Diagnose transaxle final drive assembly noise and vibration concerns; determine necessary action. P-3
  • Remove, inspect, measure, adjust, and reinstall transaxle final drive pinion gears (spiders), shaft, side gears, side bearings, thrust washers, and case assembly. P-2
  • Inspect lubrication devices (oil pump or slingers); perform necessary action. P-3

Diagnose and repair drive shaft and half shaft, universal and constant-velocity (CV) joint. Complete 95% of Priority 1, 80% of Priority 2, and 50% of Priority 3 NATEF tasks as listed below.

Objectives:

  • Diagnose constant-velocity (CV) joint noise and vibration concerns; determine necessary action. P-1
  • 2. Diagnose universal joint noise and vibration concerns; perform necessary action. P-1
  • Replace front wheel drive (FWD) front wheel bearing. P-2
  • Inspect, service, and replace shafts, yokes, boots, and CV joints. P-1
  • Inspect, service, and replace shaft center support bearings. P-3
  • Check shaft balance; measure shaft runout; measure and adjust driveline angles. P-2

Diagnose and repair rear axle--ring and pinion gears and differential case assembly. Complete 95% of Priority 1, 80% of Priority 2, and 50% of Priority 3 NATEF tasks as listed below.

Objectives:

  • Diagnose noise and vibration concerns; determine necessary action. P-2
  • Diagnose fluid leakage concerns; determine necessary action. P-2
  • Inspect and replace companion flange and pinion seal; measure companion flange runout. P-2
  • Inspect ring gear and measure runout; determine necessary action. P-2
  • Remove, inspect, and reinstall drive pinion and ring gear, spacers, sleeves, and bearings. P-2
  • Measure and adjust drive pinion depth. P-2
  • Measure and adjust drive pinion bearing preload. P-1
  • Measure and adjust side bearing preload and ring and pinion gear total backlash and backlash variation on a differential carrier assembly (threaded cup or shim types). P-2
  • Check ring and pinion tooth contact patterns; perform necessary action. P-1
  • Disassemble, inspect, measure, and adjust or replace differential pinion gears (spiders), shaft, side gears, side bearings, thrust washers, and case. P-2
  • Reassemble and reinstall differential case assembly; measure runout; determine necessary action. P-2

Diagnose and repair drive axle shaft. Complete 95% of Priority 1, 80% of Priority 2, and 50% of Priority 3 NATEF tasks as listed below.

Objectives:

  • Diagnose drive axle shafts, bearings, and seals for noise, vibration, and fluid leakage concerns; determine necessary action. P-2
  • Remove and replace drive axle shafts. P-1
  • Inspect and replace drive axle shaft seals, bearings, and retainers. P-2
  • Measure drive axle flange runout and shaft endplay; determine necessary action. P-2

Diagnose and repair four-wheel drive/all-wheel drive components. Complete 95% of Priority 1, 80% of Priority 2, and 50% of Priority 3 NATEF tasks as listed below.

Objectives:

  • Diagnose noise, vibration, and unusual steering concerns; determine necessary action. P-3
  • Disassemble, service, and reassemble transfer case and components. P-3
  • Inspect front-wheel bearings and locking hubs; perform necessary action. P-3
  • Check drive assembly seals and vents; check lube level. P-3
  • Diagnose test, adjust, and replace electrical/electronic components of four-wheel drive systems. P-3