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Throttle Body

  1. Disassembly of throttle body unit for immersion in cleaning solvent requires removal of TPS and IAC assembly. Throttle valve screws are staked in position and should not be removed. If necessary to remove TPS, continue as follows:
  2. Invert throttle body assembly and place on clean, flat surface. Remove and discard 2 TPS attaching screws, lock washers and retainers. Remove TPS from throttle body. See Fig 1 .
  3. If necessary, remove screw holding TPS actuator lever to throttle shaft. Remove IAC assembly from throttle body. Remove and discard IAC gasket.
Fig 1: Removing TPS Assembly Invert throttle body unit to remove TPS. Courtesy of General Motors Corp.
G5384
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