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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 134 (Automatic Transmission - 6L50/6L80/6L90 - Introduction (2 Of 2)) >> Repair Instructions >> Repair Instructions - Off Vehicle >> Fluid Pump Cover Cleaning and Inspection

Fluid Pump Cover Cleaning and Inspection

WARNING: This page is about a different car, the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Cadillac Escalade EXT, 2007 Cadillac Escalade ESV, and 2007 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: View Of Fluid Pump Cover & Components
GM1566319Courtesy of GENERAL MOTORS CORP.
Fluid Pump Cover Cleaning and Inspection

Callout Component Name
CAUTION: Valve springs can be tightly compressed. Use care when removing retainers and plugs. Personal injury could result.
Tip:  Clean and inspect all components and machined surfaces.
1 Pressure Regulator Valve Train
2 Converter Feed Limit Valve Train
3 Pressure Relief Ball Valve and Spring
4 TCC Control Valve and Spring
5 1-2-3-4 and 3-5 Reverse Clutch Fluid Seal Rings (Quantity: 3)
NOTE: Do not use old seal rings. Install NEW seal rings. Reusing old seal rings may cause internal transmission leaks and transmission damage.
6 A/Trans Fluid Pump Locator Pin