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Home >> Buick >> 2007 >> Allure CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 33 (Automatic Transaxle - 4T65-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Description And Operation >> Automatic Transmission Hydraulic Diagrams >> Drive Range, Manual First (from Drive, Manual Second) (Without Touch Activated Power) >> Number 4 Ball Check Valve (372)

Number 4 Ball Check Valve (372)

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

Located in the case cover (400), it seats against 3rd clutch fluid allowing Lo-1st fluid to enter the 3rd clutch fluid passage and apply the 3rd clutch.