When the gear selector lever is placed in the Neutral (N) position, the mechanical power flow through the transmission is similar to Park gear range. The primary difference is that the park pawl (715) is not engaged with the park gear (232), which allows the drive sprocket (234) to rotate freely in either direction. Assuming that the vehicle is on level ground, the weight of the vehicle (transferred through the drive axles) holds the front differential carrier (238), thus power flow does not travel to the drive sprocket (234). Under these conditions, power flow through the transmission is the same as in Park. The manual shift detent lever (709) and manual valve (452) are moved into the Neutral (N) range position.
1. Power From The Engine
Torque from the engine is transferred to the transmission through the engine flywheel which is bolted to the torque converter assembly (14).
2. Turbine Shaft Driven
As the torque converter turbine rotates, the 5-7-reverse and 6-7-8-9 clutch housing (530) and the turbine shaft (547) which is splined to the torque converter turbine, is also forced to rotate at turbine speed.
3. Input Sun Gear Dri
The input sun gear (551), which is splined to the turbine shaft (547), drives the input carrier assembly (552) pinion gears.
4. Input Carrier Assembly Driven
The input carrier assembly drives the output carrier assembly (555) pinions.
5. Output Carrier Assembly Held
The output carrier assembly (555) is splined to, and held by, the output carrier transfer drive gear hub (502). The output internal gear (input carrier assembly) (552) drives the output carrier assembly (555) pinions, which then drives the output sun gear (522).
6. Power Flow Terminated At The Output Sun Gear
Without the 1-2-3-4-5-6 clutch applied, torque cannot be transferred from the output sun gear (522), thus power flow is terminated.
7. 1- Reverse and 1-2-3-4-5-6 Clutch Piston Applied
The 1- reverse and 1-2-3-4-5-6 clutch piston is applied but not carrying a load.
8. Torque from Wheels to Front Differential Carrier Assembly Pinions
Torque from the vehicle travels through the wheels to the front differential carrier assembly (238), and is transferred to the driven sprocket (241) and connected components.
9. Power Flow Terminated at the drive sprocket
The front differential carrier (238) transfers torque to the drive sprocket (234), which is now free to rotate in either direction, and power flow is terminated. With the shift select lever in neutral, the vehicle is capable of forward or reverse motion, due to an incline or direct force (pushing).