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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 >> Manual Third Gear (With Touch Activated Power) >> Notes

Manual Third Gear (With Touch Activated Power): Notes

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A manual 4-3 downshift is accomplished by moving the gear selector lever to the Manual position. In Manual the transmission is hydraulically prevented from upshifting into Fourth gear under any conditions. Also, the input clutch is applied in Manual range to provide engine compression braking in 3rd gear. The following information explains the additional changes during a manual 4-3 downshift as compared to a forced 4-3 downshift. Refer to Overdrive Range: 4-3 Downshift for a complete description of a 4-3 downshift.

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