Control Valve Channel Plate Cleaning and Inspection (6T40/45)

2013 Buick Regal Turbo Premium, Standard TransSECTION Control Valve Channel Plate Cleaning and Inspection (6T40/45)
WARNING: This page is about a different car, the 2011 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Locating Control Valve Channel Plate Inspection Areas
GM1902424Courtesy of GENERAL MOTORS CORP.
Callout Component Name
1 Channel Plate to Valve Body Spacer Plate Assembly
2 Valve Channel Plate
Tip:Β  Inspect the channel plate bolt pass through holes for damage or brinelling. Any damage will cause incorrect pressure switch operation. Replace as necessary.
3 Control Valve Body Guide Pins
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.