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Home >> Saturn >> 2010 >> Sky Red Line, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (Automatic Transmission - 5L40-E/5L50-E - Description And Operation) >> Description and Operation >> Automatic Transmission Hydraulic Diagrams >> Overdrive Range, Fourth Gear >> Direct Clutch Applies

Direct Clutch Applies

WARNING: This page is about a different variant/trim than selected.
1-2 Shift Solenoid (SS) Valve

The 1-2 SS valve is de-energized, blocking feed limit fluid from entering the 1-2 signal fluid circuit and 1-2 signal fluid pressure exhausts through the 1-2 SS valve.

3-4 Shift Valve

When 1-2 signal fluid pressure exhausts from the 3-4 shift valve (345), the 3-4 shift valve spring (344) moves the valve to the released position. 345 fluid from the 2-3 shift valve flows through the 3-4 shift valve and enters the direct clutch circuit.

Direct Clutch

Direct clutch fluid is routed to the direct clutch piston to apply the direct clutch plates and obtain Fourth gear.

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