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Home >> Chevrolet >> 2001 >> Venture Base, Van Passenger >> Repair and Diagnosis >> External Pages >> Different car >> Section 613 (Automatic Transaxle - 4T65-E (Introduction, Service & Replacement)) >> Repair Instructions >> Reverse Servo Replacement (LY7) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
    IMPORTANT: Failure to perform the following step may result in no reverse gear due to the servo pin not aligning with the reverse band.
  1. Raise the outboard (left) side of the transmission until it is higher than the differential (right) side. This ensures that the reverse band is in the proper location.
    2. Fig 1: Identifying Reverse Servo Assembly Components
    GM48173Courtesy of GENERAL MOTORS CORP.
  2. Install the servo spring (49).
  3. Install the servo assembly (42-48).
  4. Install the reverse servo cover (40) with the new O-ring seal (41).
  5. Install the snap ring (39).
  6. Install the exhaust crossover pipe. Refer to Exhaust Crossover Pipe Replacement (LA1) or Exhaust Crossover Pipe Replacement (LY7) in Engine Exhaust.
  7. Install the powertrain (engine, transmission and frame) to the vehicle. Refer to Engine Replacement in Engine Mechanical - 3.6L (LY7).
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