Transmission Case Cleaning and Inspection

WARNING: This page is about a different variant/trim than selected.

Fig 1: Identifying Transmission Case Areas For Cleaning And Inspection

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
CAUTION: Do not use abrasive pads or bristle devices to clean the sealing surfaces. Abrasive pads produce a fine grit that can effect transmission function. Abrasive pads can also remove enough metal to create oil leaks. CAUTION: After cleaning the transmission components, allow to air dry. Do not use cloth or paper towels in order to dry any transmission components. Lint from the towels can cause component failure. CAUTION: Do not reuse cleaning solvents. Previously used solvents may deposit sediment which may damage the component. Preliminary Procedures Thoroughly clean the transmission case assembly, including case threads, with clean solvent. Clean gasket sealing surfaces. Remove all residual gasket material. Inspect all threaded holes. If necessary, repair any thread damage.
1	Transmission Case Locating Pin Procedure Inspect the transmission case locating pins. NOTE: The locating pins installed height is 7.4 mm (0.29 in).
2	Torque Converter and Differential Housing Sealing Surface
3	Control Valve Body Cover Sealing Surface
4	Automatic Transmission Case Hole Plug [4x] CAUTION: Refer to Fastener Caution . Tighten 10.5 N.m (93 lb in)
5	Control Valve Body Locating Pin
6	Manual Shift Shaft Seal Surface
7	Transmission Fluid Filler Cap
8	Transmission Fluid Filler Cap Seal Procedure Remove and DISCARD the seal.
9	Transmission Fluid Filler Cap Sealing Surface
10	Automatic Transmission Intermediate Speed Sensor Sealing Surface
11	Automatic Transmission Case Cover Plug Tighten 10.5 N.m (93 lb in)
12	Automatic Transmission Case Cover Plug [2x] Tighten 16 N.m (12 lb ft)