LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2022 >> Tahoe PPV, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Transfer Case - Mp 3025 (NQH)) >> Description and Operation >> Transfer Case Description and Operation >> Auto 4WD Mode Power Flow

Auto 4WD Mode Power Flow

WARNING: This page is about a different variant/trim than selected.
Fig 1: Identifying Auto 4WD Mode Power Flow Components
GM4994668Courtesy of GENERAL MOTORS COMPANY
Callout Component Name
1 Transfer Case Input Shaft
2 Transfer Case Scissor Mechanism Lever
3 Transfer Case Four Wheel Drive Clutch
4 Transfer Case Front Output Shaft Drive Chain Assembly
5 Transfer Case Rear Output Shaft
6 Transfer Case Two/Four Wheel Drive Actuator Shaft Gear
7 Transfer Case Two/Four Wheel Drive Actuator Cam
8 Transfer Case Front Output Shaft


Fig 1: Identifying AUTO 4WD Mode Power Flow Components
GM4996995Courtesy of GENERAL MOTORS COMPANY

During the Auto 4WD mode, the power flow is the same as it is in the 4HI mode. Except, during the Auto 4WD mode, the 2/4 wheel drive actuator assembly (13) rotates the control actuator shaft to the correct torque level positions. Rotating the control actuator shaft to the various positions changes the clutch torque level. When a difference of front wheel speed to rear wheel speed is recognized, the transfer case control module commands for more or less clutch torque.