Torque Converter Housing Cleaning and Inspection

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.

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	Transmission Fluid Cooler Pipe Fitting Seal CAUTION: Refer to Seal Reuse Caution . Procedure Transmission Fluid Cooler Pipe Seal Replacement
4	Torque Converter Bushing