Allison - Automatic Transmission

Automatic Transmission Fluid Pressure Test Hole Plug Replacement

Removal Procedure




1. Remove the pressure tap plug (2) and O-ring (1) on the bottom of the converter housing near the transmission external oil filter.
2. Remove the O-ring from the plug and discard it.

Installation Procedure




1. Install a new O-ring (1) on the pressure tap plug (2).

Caution: Refer to Fastener Caution (Fastener Caution).

2. Install the plug and O-ring into the converter housing.

Tighten the plug to 12 Nm (108 lb in).