Valve Body & Pressure Switch (4L80-E): Installation
WARNING: This page does not describe the selected car, but rather 13 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, and 2002 GMC C3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
- Install the 8 checkballs (9 checkballs for some transmissions) into the control valve body. The checkball marked as number 2, is used on RCP, RDP, ZJP and ZLP models only. See Fig 4.
- To hold the checkballs in place, use assembly lubricant. Install the PWM screen into the control valve body.
- Install the manual valve (16) into the control valve body. Install the control valve body gasket. Install the control valve body assembly. See Fig 3.
- Attach the manual valve to the detent lever while installing the control valve body assembly. Install the transmission fluid pressure manual valve position switch.
- Install the transmission fluid pressure manual valve position switch bolts finger tight. Torque the bolts sequentially to specification. See Fig 2 and TORQUE SPECIFICATIONS .
- Install the manual shaft detent roller and spring assembly (3) and bolts (2 and 4). Install the 2 wiring harness clips (1) and bolts (2). Install the wiring harness clip (1) and bolts (2). Install the lube oil pipe (5) with the short end into the control valve body. Install the lube oil pipe retainer (7) and the bolt (6). See Figure.
- Install the remaining control valve body bolts and tighten in the order shown. See Fig 1. Tighten to specification. See TORQUE SPECIFICATIONS .