GM Service Manual Online
For 1990-2009 cars only

Checks

Action

Control valve body cover (67)

Inspect for damage. Replace the control valve body cover. Refer to Control Valve Body Cover Replacement .

Control valve body cover (67) bolts/screws (60)

Inspect for loose, cross - threaded, or missing bolts. Tighten or replace the bolts/screws (60). Refer to Control Valve Body Cover Replacement .

Control valve body cover gasket (68)

Inspect gasket for damage or misalignment. Replace the control valve body cover gasket (68). Refer to Control Valve Body Cover Replacement .

Control valve body assembly (72)

Inspect for porosity or damage. Replace the control valve body assembly (72). Refer to Control Valve Body Replacement .

Spacer with gasket plate (73)

Inspect for damage or improper sealing. Replace the spacer with gasket plate (73). Refer to Control Valve Body Replacement .

Control valve body bolts/screws (71, 79)

Inspect for loose, cross-threaded or missing bolts/screws. Tighten or replace the bolts/screws (71, 79). Refer to Control Valve Body Replacement .

Case assembly (50)

Inspect for porosity or damage. Refer to Transmission Case Inspection . Replace the case assembly (50).

Anaerobic seal between the case assembly (50) and the torque converter and differential housing (4)

Inspect for inadequate or too narrow seal. Apply a NEW bead of anaerobic sealant. Refer to Torque Converter and Differential Housing Installation .

Fluid cooler pipe fitting seal (54)

Inspect for loose, damaged or worn seal. Replace the fluid cooler pipe fitting seal (54). Refer to Fluid Cooler Pipe Seal Replacement .

Fluid pressure test hole plug (55)

Inspect for loose, cross-threaded, or damaged plug. Replace the fluid pressure test hole plug (55). Refer to Automatic Transmission Fluid Pressure Test Hole Plug Replacement .

Torque converter and differential housing assembly (4)

Inspect for porosity or damage. Replace the torque converter and differential housing assembly (4). Refer to Torque Converter and Differential Housing Installation .

Torque converter and differential housing seal assembly (2)

Inspect for loose or damaged seal. Replace the torque converter and differential housing seal assembly (2). Refer to Torque Converter and Differential Housing Seal Replacement .

Front wheel drive shaft oil seal (3, 3A)

Inspect for loose or damaged seal. Replace the front wheel drive shaft oil seal (3, 3A). Refer to Front Axle Shaft Seal Replacement .

Case cover assembly (97)

Inspect for porosity or damage. Replace the case cover assembly (97). Refer to Case Cover and 3-5-Reverse and 4-5-6 Clutch Housing Removal .

Case cover bolts/screws (108)

Inspect for loose, cross-threaded, or stripped bolts/screws. Tighten or replace the required bolts. Refer to Case Cover and 3-5-Reverse and 4-5-6 Clutch Housing Removal .

Anaerobic seal between the case cover assembly (97) and the case assembly (50)

Inspect for inadequate or narrow seal. Apply a NEW bead of anaerobic sealant. Refer to Case Cover Assembly Installation .

Drive/driven pulley opening covers (104, 114)

Inspect for porosity or damage. Replace the drive/driven pulley opening covers (104, 114). Refer to Variable Drive Cover Replacement .

Drive/driven pulley opening cover seals (98, 102, 109, 113)

Inspect for cut, damaged or leaking seals. Replace the drive/driven pulley opening cover seals (98, 102, 109, 113). Refer to Variable Drive Cover Replacement .

Manual shift shaft seal assembly (41)

Inspect for loose, cocked or damaged seal. Replace the manual shift shaft seal assembly (41). Refer to Manual Shift Shaft and Parking System Components Removal .

Torque converter (1)

Inspect for damage. Replace the torque converter (1). Refer to Torque Converter Assembly Removal .