For 1990-2009 cars

When the gear selector lever is moved to the Neutral position (N) from the Reverse position, the following changes occur to the transmission hydraulic and electrical systems.

### Manual Valve

In the Neutral position, the manual valve blocks the line pressure from entering any other fluid circuits. Reverse and PR fluids exhaust past the manual valve.

### Lo and Reverse Clutch Releases

#### Lo and Reverse Clutch Piston

PR and Lo/reverse fluids exhaust from the piston, thereby releasing the lo and reverse clutch plates. Exhausting PR fluid unseats the lo and reverse clutch checkball (#10) for a quick exhaust.

### Lo Overrun Valve

Spring force closes the valve when the PR fluid pressure exhausts. Lo/reverse fluid exhausts through the valve, into the Lo/1st fluid circuit, past the 1-2 shift valve, into the Lo fluid circuit and through an exhaust port at the manual valve.

### Reverse Input Cutch Releases

#### Reverse Input Clutch Piston

Reverse input fluid pressure exhausts from the piston, through the boost valve, past the #3 checkball and to the manual valve. With the reverse input fluid exhausted, the reverse input clutch plates are released and the transmission is in Neutral.

### Reverse Abuse Valve

Reverse fluid pressure exhausts and spring force closes the valve.

### Boost Valve

Reverse input fluid pressure exhausts and line pressure returns to the normal operating range as in the Park and Overdrive positions.

### Reverse Input Checkball (#3)

Exhausting reverse input fluid unseats the ball for a quick exhaust through the reverse fluid circuit and past the manual valve.

#### Neutral - Engine Running

3-2 Control Solenoid
Reverse Input Clutch-hydraulic schematic
Input Housing-hydraulic schematic
Lo/Reverse Clutch
Pressure Switch Assembly
1-2 and 2-3 Solenoid
1-2 and 2-3 Solenoid
TCC Solenoid
TCC PWM Solenoid
Pressure Control Solenoid
Forward Clutch Accumulator
3-4 and 1-2 Accumulator