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Accumulator Assembly (4L80-E): Installation

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  1. Reassemble accumulator assembly as shown. See Fig 3 .
  2. Install the guide pin into the control valve body bolt hole where the manual shaft detent roller and spring assembly is mounted. Install the control valve body gasket (45). Install the control valve body spacer plate (46). See Fig 2 .
  3. Install the 3rd and 4th clutch accumulator housing gasket (47). Install the 3rd clutch accumulator piston spring (50). This spring is the longer of the 2 springs. Install the 4th clutch accumulator piston spring (49). See Fig 2 .
  4. Install the 3rd and 4th clutch accumulator housing assembly (51) onto the control valve body assembly (44). Install the 6 accumulator housing bolts (53). Start the bolts finger tight and work towards the opposite end.
  5. Tighten the accumulator housing bolts sequentially. See Fig 4 . Tighten the accumulator housing bolts to specification. See TORQUE SPECIFICATIONS  . Remove the guide pin.
  6. Install the control valve body gasket. Install the control valve body assembly. See CONTROL VALVE BODY (4L80-E)  . Attach the manual valve to the detent lever while installing the control valve body assembly.
  7. Install the transmission fluid pressure manual valve position switch. Install the transmission fluid pressure manual valve position switch bolts finger tight. Tighten the bolts sequentially to specification. See Fig 5 and TORQUE SPECIFICATIONS  .
  8. Install the manual shaft detent roller and spring assembly (3) and bolts (2 and 4). Install the 2 wiring harness clips (1) and bolts (2). Install the wiring harness clip (1) and bolts (2). See Fig 6 .
  9. Install the lube oil pipe (5) with the short end into the control valve body. Install the lube oil pipe retainer (7) and the bolt (6). Install the remaining control valve body bolts. See Fig 6 . Tighten the bolts sequentially to specification. See TORQUE SPECIFICATIONS  . Install oil filter and oil pan. See DRAINING & REFILLING  under LUBRICATION.
Fig 1: Disassembling & Assembling Accumulator Housing
G00089903Courtesy of GENERAL MOTORS CORP.
Fig 2: Removing & Installing Accumulator Assembly
G00089904Courtesy of GENERAL MOTORS CORP.
Fig 3: Exploded View Of Accumulator Assembly
G96J04465Courtesy of GENERAL MOTORS CORP.
Fig 4: Tightening Accumulator Bolts Sequentially
G00089905Courtesy of GENERAL MOTORS CORP.
Fig 5: Tightening TFP Switch
G00089907Courtesy of GENERAL MOTORS CORP.
Fig 6: Installing Valve Body Bolts & Related Parts
G00089906Courtesy of GENERAL MOTORS CORP.
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