Oil Pressure Test Plug: Removal
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, 2004 Chevrolet Cab & Chassis Silverado, and 2003 GMC Sierra. However, it is still accessible from the selected car via links, so may be relevant.
Remove the pressure tap plug (2) and "O" ring (1) that is located on the bottom of the converter housing near the control main filter. See Fig 1 . Remove the "O" ring from the plug and discard it.