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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 246 (Automatic Transaxle - 4T65-E - Overhaul) >> Description and Operation >> Automatic Transmission Hydraulic Diagrams >> Overdrive Range, Third Gear - Torque Converter Clutch Not Applied (With Touch Activated Power) >> Number 9 Ball Check Valve (372)

Number 9 Ball Check Valve (372)

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Located in the control valve body (300), forces 3rd fluid through a feed orifice and into the 3rd clutch passage.