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Home >> Buick >> 2019 >> Regal TourX Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 140 (Automatic Transmission - 9T50 (M3D) And 9T60 (M3T) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0796 or P0797 >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2020 Buick Regal and 2019 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

The components are listed from the least to the most intrusive to service.

Component DTC Condition
Q77C Transmission Control Solenoid Valve 3 P0796, P0797
  • Binding, sticking or stuck component: Solenoid Valve
  • Damaged or missing component:
    • Retaining Clip
    • Solenoid Valve
  • 3-8 Clutch Regulator Valve
  • Valve Spring
  • Valve Body Bore
 P0796, P0797
  • Binding, sticking or stuck component: Valve
  • Debris on the component.
  • Damaged component:
    • Valve or Bore - Scored
    • Spring
3-8 Clutch Assembly - Oil Feed Circuit P0796, P0797
  • Blocked or restricted component: - Fluid/oil passage
  • Leaking component:
    • Gasket
    • O-Ring
    • Seal
3-8 Clutch Assembly P0796, P0797
  • Blocked or restricted component: Fluid/oil passage
  • Leaking component:
    • Clutch Piston
    • Clutch Housing
    • Gasket
    • O-Ring
    • Seal
  • Binding, sticking or stuck component: Clutch Plates
  • Damaged or worn component:
    • Clutch Plates
    • Clutch Piston
    • Clutch Housing
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