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Home >> GMC >> 2017 >> Acadia SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 93 (Automatic Transmission - 8L45 (M5N M5T) Or 8L90 (M5U) - Description And Operation) >> Description and Operation >> Drive Range, Sixth Gear >> 2-3-4-6-8 Clutch Applies

2-3-4-6-8 Clutch Applies

WARNING: This page is about a different car, the 2016 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

2-3-4-6-8 Control Solenoid 

The 2-3-4-6-8 control solenoid energizes allowing line fluid to enter the S4 VFS SIG fluid circuit which applies pressure against the S4 vfs accum spring force and against the 23468 control valve spring force. This allows 13567 CL/23468 CL FD fluid to enter the 23468 CLU fluid circuit. 13567 CL/23468 CL FD fluid also passes thru the 23468 control valve orifice #39 into FDBK. 23468 CLUTCH fluid is directed to the #10 ball check valve and thru orifice #44 to the 23468 clutch assembly housing.

2-3-4-6-8 Clutch Assembly 

The 23468 CLU fluid passes thru orifice #44 continuing to the 2-3-4-6-8 clutch assembly housing. 23468 CLUTCH fluid applies pressure against the 23468 clutch piston which applies holding pressure to the 2-3-4-6-8 clutch plates.