Maricopa Community Colleges  APT121   19966-20086 
Official Course Description: MCCCD Approval: 07/22/08
APT121 19966-20086 LEC 3 Credit(s) 3 Period(s)
Auto Transmission (General Motors)
The fundamentals and principles of automatic transmissions presently in use by General Motors Corporation automobiles. Diagnosis, service, and reconditioning procedures necessary to maintain these units.
Prerequisites: None.
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MCCCD Official Course Competencies:
 
APT121   19966-20086 Auto Transmission (General Motors)
1. Describe the operation of the torque converter, pressure regulator, manual valve, throttle valve, governor, shift valves, and the bands and clutches. (I)
2. Remove and replace an automatic transmission and perform proper external adjustments. (II-VI)
3. Disassemble and reassemble a T-125, T-200, T-350, T-440, or T- 700 transmission, maintaining specified end play where called for. (II-VI)
4. Perform routine in-car service on a transmission. (II-VI)
5. Check a torque converter for proper end play. (II-VI)
6. Make appropriate pressure checks on a transmission. (II-VI)
7. Test torque converter clutch control circuit for electrical faults. (II-VI)
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MCCCD Official Course Outline:
 
APT121   19966-20086 Auto Transmission (General Motors)
    I. Introduction
        A. Torque converters
          1. Torque multiplication
          2. Components
          3. Vortex flow
          4. Heat
          5. Locking converters
        B. Oil pump
        C. Power flow
          1. Planetary gearsets
          2. Bands and clutches
        D. Valve body
          1. Hydraulics
          2. Spool valves
          3. Pressure regulator
          4. Manual valve
          5. Shift valves
          6. Throttle valve
          7. Other valves
        E. Governor
        F. Accumulators
        G. Electronic controls
      II. T-125
          A. Operation
          B. Overhaul
          C. Diagnosis
        III. T-200
            A. Operation
            B. Overhaul
            C. Diagnosis
          IV. T-350
              A. Operation
              B. Overhaul
              C. Diagnosis
            V. T-440
                A. Operation
                B. Overhaul
                C. Diagnosis
              VI. T-700
                  A. Operation
                  B. Overhaul
                  C. Diagnosis
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