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Home >> GMC >> 1991 >> Value Van 7.4 N >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Transmission Hydraulic Diagrams - 4L80-E. >> Automatic Transmission System Hydraulic Diagrams

Automatic Transmission System Hydraulic Diagrams

Fig 1: "P" Or "N" Range - Park Or Neutral
G97D02736
Fig 2: "R" Range - Reverse
G97E02746
Fig 3: "OD" Range - 1st Gear
G97F02737
Fig 4: "OD" Range - 2nd Gear
G97H02738
Fig 5: "OD" Range - 3rd Gear
G97J02739
Fig 6: "OD" Range - 4th Gear (TCC ON)
G97B02740
Fig 7: 4-3 Downshift (Valves In 3rd Gear Position)
G97D02741
Fig 8: 3-2 Downshift (Valves In 2nd Gear Position)
G97F02742
Fig 9: "3" Range - 3rd Gear (Manual Select)
G97H02743
Fig 10: "2" Range - 2nd Gear (Manual Select)
G97J02744
Fig 11: "1" Range - 1st Gear (Manual Select)
G97C02745