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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 56 (Automatic Transmission - 6L90 (MYD) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0751 or P0752 >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. 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
Q8 Control Solenoid Valve Assembly P0751 or P0752
  • Q32A Shift Solenoid Valve 1 - Binding or Sticking/Stuck
  • Control Solenoid Valve Assembly Filter Plate - Restricted or Cracked
  • O-Ring - Leaking
Control Valve Body P0751
  • Clutch Selector Valve Bore Plug - Incorrect - Small
  • Check ball #1 missing or damaged.
P0751 or P0752
  • 1-R and 4-5-6 Clutch Regulator Valve - Binding or Sticking/Stuck
  • Clutch Selector Valve - Binding or Sticking/Stuck
Control Valve Channel Plate P0751 or P0752 Oil Channels or Orifices - Restricted
Control Valve Channel Plate Spacer Plate P0751 or P0752 Oil Channels or Orifices - Restricted
Output Carrier Assembly P052 Pinion Pins - Incorrect installation
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