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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 874 (Automatic Transaxle Diagnosis, Service & Repair - 4T65-E) >> Repair Instructions >> Control Valve Body Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the case side cover. Refer to CASE SIDE COVER REPLACEMENT  .
  2. Remove the oil pump. Refer to OIL PUMP REPLACEMENT  .
  3. Remove the valve body bolts (374-381, 384).
    Fig 1: Removing Control Valve Body (1 Of 6)
    G01502006Courtesy of GENERAL MOTORS CORP.
  4. Remove the valve body (300) while keeping the spacer plate (370) with the transaxle.
    Fig 2: Removing Control Valve Body (2 Of 6)
    G01502007Courtesy of GENERAL MOTORS CORP.
  5. Remove the ball check valves (372, 373) from the valve body.
    Fig 3: Removing Control Valve Body (3 Of 6)
    G01502008Courtesy of GENERAL MOTORS CORP.
  6. Remove the spacer plate (370) and gasket.
    Fig 4: Removing Control Valve Body (4 Of 6)
    G01502009Courtesy of GENERAL MOTORS CORP.
  7. Remove the ball check valves (372) from the case cover.
    Fig 5: Removing Control Valve Body (5 Of 6)
    G01502010Courtesy of GENERAL MOTORS CORP.
  8. Inspect each check valve seat in the spacer plate (370) for excessive peening. Place a ball check valve (372) on each seat and use a flashlight in order to look for visible light between the valve and the seat.
  9. Inspect all components removed from the transaxle. Refer to the Transmission/Transaxle/Transfer Case Unit Repair Manual.
    Fig 6: Removing Control Valve Body (6 Of 6)
    G01502011Courtesy of GENERAL MOTORS CORP.
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