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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1829 (Automatic Transmission - 5AT - Introduction (2 Of 2)) >> Description and Operation >> Automatic Transmission Hydraulic Diagrams >> Drive or Intermediate - First Gear >> D or I Position: Driving in 1st gear

D or I Position: Driving in 1st gear

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The PCM turns SS valve A and C ON, and SS valve B stays ON. SH A pressure (SA) in the right side of shift valve A and E is released, and shift valve A and E are moved to the right side. SH C pressure (SC) in the right side of shift valve C is released, and modulator pressure (6) is applied to the left side of shift valve C. Shift valve C is moved to the right side. These valve movements release CPC C pressure (4C) from the back of the 1st accumulator and the 3rd clutch, and the 1st clutch is engaged securely.

When used, "left" or "right" indicates direction on the hydraulic circuit.

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