Transmission Fluid Pump Cleaning and Inspection

Fig 1: Identifying Fluid Pump Components

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
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 The fluid pump assembly is not serviceable.
1	Filter Neck Seal NOTE: Install a NEW filter neck seal. Special Tools 28585 Snap ring Remover or equivalent For equivalent regional tools, refer to Special Tools .
2	A/Trans Fluid Filter Assembly NOTE: Install a NEW fluid filter assembly.
3	Fluid Pump Drive Shaft NOTE: Inspect the fluid pump drive shaft splines for damage or wear. Rotate the fluid pump drive shaft for free operation.