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Home >> GMC >> 2024 >> Acadia AT4 >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 8T65 (MF8) - Description And Operation >> Description and Operation >> Drive Range, Fifth Gear (Hydraulic Circuit) >> 5-7 Reverse Clutch Releases

5-7 Reverse Clutch Releases

5-7 Reverse Solenoid E 

The 5-7 reverse solenoid E de-energizes releasing pressure against the 5-7 reverse regulator valve spring force. This blocks 57R CLUTCH FEED fluid from entering the DRIVE 2 fluid circuit. DRIVE 2 fluid is exhausted thru orifice #25 into the EX BACKFILL fluid circuit and thru orifice #21 into the EXHAUST fluid circuit.

5-7 Reverse Clutch Assembly 

The 5-7 reverse clutch is released allowing 57R CLUTCH fluid to exhaust thru orifice #45 into the 57R CLUTCH FEED fluid circuit. 57R CLUTCH FEED fluid continues thru orifice #22 into the EXHAUST fluid circuit.