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Home >> Cadillac >> 2018 >> Escalade Base, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 25 (Automatic Transmission - 8L90 (M5U) - Repair Instructions - Off Vehicle) >> Repair Instructions - Off Vehicle >> Control Valve Upper Body Assembly Cleaning And Inspection

Control Valve Upper Body Assembly Cleaning And Inspection

WARNING: This page is about a different car, the 2018 Chevrolet Suburban 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Control Valve Upper Body Assembly Exploded View
GM4311464Courtesy of GENERAL MOTORS COMPANY
Callout Component Name
WARNING:

Valve Springs can be tightly compressed. Use care when removing retainers and plugs. Personal injury could result.

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 Procedure Clean and inspect all valve components and the valve body. The control valve lower body is replaceable only as an assembly.Special Tools DT-50914  Solenoid Valve Retainer Remover/InstallerEquivalent regional tools: Special Tools .
1 Transmission Fluid Passage Plug
2 Pressure Regulator Valve Train
3 Pressure Relief Ball Valve Train
4 Actuator Feed Limit Valve Train
5 Default Override Valve Train
6 Control Valve Center Body Hole Plug
7 Clutch Piston Exhaust Blowoff Ball Valve Train
8 Torque Converter Clutch Valve Train
9 Lube Regulator Valve Train
10 Torque Converter Clutch Control Valve Train