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Removal (4.3L)

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  1. Turn ignition off. Disconnect negative battery cable. Disconnect breather tube at air cleaner outlet duct. See Fig 1.
  2. Disconnect Intake Air Temperature (IAT) sensor harness connector. See Fig 2. Remove air cleaner outlet duct retaining wingnut. See Fig 3.
  3. Loosen air cleaner outlet duct-to-MAF sensor clamp. Remove air cleaner outlet duct. See Fig 4.
  4. Remove air cleaner outlet duct adapter stud. See Fig 5. Disconnect accelerator control cable from throttle body.
  5. Disconnect cruise control cable from throttle body (if equipped). Remove 2 accelerator control cable routing bracket-to-throttle body retaining nuts. See Fig 6. Position accelerator control cable routing bracket aside.
  6. Remove accelerator control cable bracket retaining stud and nuts. Position accelerator control cable bracket aside.
  7. Disconnect IAC valve and TP sensor harness connectors from throttle body. See Fig 7 and Fig 8 .
  8. Remove throttle body retaining studs. See Fig 9. Remove throttle body assembly from intake manifold. Remove flange gasket and discard. See Fig 10.
Fig 1: Disconnecting Breather Tube From Air Cleaner Outlet Duct (4.3L)
G00242341Courtesy of GENERAL MOTORS CORP.
Fig 2: Disconnecting IAT Sensor Harness Connector (4.3L)
G00242342Courtesy of GENERAL MOTORS CORP.
Fig 3: Removing/Installing Air Cleaner Outlet Retaining Wingnut (4.3L)
G00242343Courtesy of GENERAL MOTORS CORP.
Fig 4: Separating Air Cleaner Outlet Duct From Air Cleaner (4.3L)
G00242344Courtesy of GENERAL MOTORS CORP.
Fig 5: Locating Air Cleaner Outlet Duct Adapter Stud(4.3L)
G00143849Courtesy of GENERAL MOTORS CORP.
Fig 6: Removing/Installing Accelerator Control Cable Routing Bracket (4.3L)
G00143850Courtesy of GENERAL MOTORS CORP.
Fig 7: Disconnecting Idle Air Control Valve Harness Connector (4.3L)
G00242345Courtesy of GENERAL MOTORS CORP.
Fig 8: Disconnecting Throttle Position Sensor Harness Connector (4.3L)
G00242346Courtesy of GENERAL MOTORS CORP.
Fig 9: Removing/Installing Throttle Body Studs (4.3L)
G00242347Courtesy of GENERAL MOTORS CORP.
Fig 10: Removing/Installing Throttle Body Gasket (4.3L)
G00242348Courtesy of GENERAL MOTORS CORP.
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