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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 110 (Automatic Transmission - 6L90 (MYD) - Repair Instructions - Off Vehicle) >> Repair Instructions - Off Vehicle >> Control Valve Lower Body Assembly Cleaning and Inspection

Control Valve Lower Body Assembly 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.
GM1566324Courtesy 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.
1 Clutch Piston Dam Feed Regulator Valve Train
2 Clutch Selector Solenoid Number 3 Valve Train
3 Clutch Selector Solenoid Number 2 Valve Train
4 Manual Valve
5 Torque Converter Clutch Regulator Apply Valve Train