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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1626 (Automatic Transmission - 4L80-E - Service & Replacement) >> Repair Instructions >> Accumulator Housing Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Install J 25025  into the valve body bolt hole where the manual shaft detent roller and spring is mounted.
  2. Install the valve body gasket (2) onto the accumulator housing (1).
  3. Install the valve body spacer plate (3) onto the valve body gasket (2).
    Fig 1: Installing Valve Body Gasket & Valve Body Spacer Plate
    G01952388Courtesy of GENERAL MOTORS CORP.
  4. Install the third and fourth clutch accumulator housing gasket (3).
  5. Install the third clutch accumulator piston spring (1). This spring is the longer of the two springs.
  6. Install the fourth clutch accumulator piston spring (4).
  7. Install the third and fourth clutch accumulator housing assembly (5) onto the control valve body assembly (2).
  8. Install the six accumulator housing bolts (6). Start the bolts finger tight and work towards the opposite end.
    Fig 2: Installing Third & Fourth Clutch Accumulator Housing, Gasket, Piston Spring & Bolts
    G01952389Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to FASTENER NOTICE .
  9. Tighten the accumulator housing bolts sequentially.

    Tighten 

    Tighten the bolts to 11 N.m (97 lb in).

  10. Remove the J 25025. 
  11. Install the valve body. Refer to Valve Body And Pressure Switch Replacement   . 
    Fig 3: Identifying Accumulator Housing Bolts Tightening Sequence
    G01952390Courtesy of GENERAL MOTORS CORP.
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