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HOMESERVICE MANUALSBUICK2013REGAL TURBO PREMIUM, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 119 (AUTOMATIC TRANSMISSION - 6T45 - REPAIR INSTRUCTIONS - OFF VEHICLE)REPAIR INSTRUCTIONS - OFF VEHICLELOW AND REVERSE AND 1-2-3-4 CLUTCH HOUSING ASSEMBLELOW AND REVERSE CLUTCH PISTON INSTALLATION
2013 Buick Regal Turbo Premium, Standard Trans

Low and Reverse Clutch Piston Installation

2013 Buick Regal Turbo Premium, Standard TransSECTION Low and Reverse Clutch Piston Installation
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: Disassembled View Of Low & Reverse Clutch Piston
GM1891404Courtesy of GENERAL MOTORS CORP.
Low and Reverse Clutch Piston Installation

Callout Component Name
1 Low and Reverse Clutch Piston
Tip: DT-47807:  protector prevents the piston seal lip from damage during installation. Apply a thin coat of ATF to the ID of DT-47807:  protector to ease the installation of the piston.
Special Tools: 
DT-47807:  Clutch Piston Seal Protector
2 Low and Reverse Clutch Spring
3 Low and Reverse Clutch Spring Retainer
CAUTION: Regulate the air pressure to 40 psi maximum. High pressure could cause the piston to over travel and damage the piston seals.

Procedure

  1. Place the retainer onto DT-47794-1 which is part of DT-47794:  compressor. Compressing the spring using DT-47794-2 which is part of DT-47794:  compressor, will install the retainer into the retainer groove.
  2. Apply shop air to the clutch fluid feed hole in the clutch housing to verify proper piston operation.

Special Tools: 
DT-47794:  Spring Compressor
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:

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