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Home >> Pontiac >> 2009 >> Vibe Base, 2.4 0, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 54 (Automatic Transmission - 4T80-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis) >> Description And Operation >> Automatic Transmission Hydraulic Diagrams >> Reverse >> Reverse Clutch Applies >> The #7 Checkball (Reverse/Reverse Clutch)

The #7 Checkball (Reverse/Reverse Clutch)

WARNING: This page is about a different car, the 2009 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.

The #7 checkball is located in the valve body. The checkball is seated against the spacer plate in order to force reverse fluid through orifice #12 before the fluid enters the reverse clutch circuit.