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Home >> Chevrolet >> 2010 >> Cobalt LS, 4D Sedan, Automatic >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 4T45-E - Description And Operation >> Description and Operation >> Automatic Transmission Hydraulic Diagrams >> Overdrive Range, First Gear (With Electronic Range Select Mode) >> Forward Clutch Applies >> 1-2 Shift Valve

1-2 Shift Valve

The 1-2 signal fluid pressure keeps the 1-2 shift valve in the downshifted position against a spring force. Drive fluid is routed through the 1-2 shift valve.

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