Forward Servo (4L80-E): Removal
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.
- Raise and support the vehicle. Remove the oil pan and filter. See DRAINING & REFILLING under LUBRICATION.
- Remove the 6 forward servo cover bolts, cover and gasket.
- Remove the following parts:
- Forward servo piston pin (5).
- O-ring seal (4).
- Servo piston (3).
- Retainer (2).
- Piston spring (1).
See Figure.