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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 246 (Automatic Transaxle - 4T65-E - Overhaul) >> Description and Operation >> Automatic Transmission Hydraulic Diagrams >> Park or Neutral - Engine Running (Park - With Touch Activated Power) >> 2-3 Shift Solenoid Valve (315B)

2-3 Shift Solenoid Valve (315B)

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Controlled by the powertrain control module (PCM), the 2-3 shift solenoid (SS) valve is energized (On) in PARK range and directs line pressure into the 2-3 signal passage. 2-3 signal fluid directed to the 4-3 manual downshift valve (360) and moves the valve against spring pressure and also the 3-2 manual downshift valve (356).

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