Torque Converter Housing Cleaning And Inspection

WARNING: This page is about a different car, the 2018 GMC Yukon XL, 2018 GMC Yukon, 2018 Chevrolet Tahoe, 2018 Chevrolet Suburban 3500 HD, and 2018 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Torque Converter Housing Components

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
Preliminary Procedures Thoroughly clean the torque converter housing assembly, including threads, with clean solvent. Clean sealing surfaces. Inspect all threaded holes. If necessary, repair any thread damage.
1	Line Pressure Test Hole Plug CAUTION: Use care when tightening the line pressure test hole plug. Do not use a socket extension, which could cause side-loading and potentially crack the transmission case assembly. CAUTION: Refer to Fastener Caution . Tighten 11 N.m (97 lb in)
2	Automatic Transmission Vent Pipe
3	Automatic Transmission Vent Seal CAUTION: Refer to Seal Reuse Caution . Procedure Refer to Transmission Fluid Cooler Pipe Seal Replacement
4	Torque Converter Bushing