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HOMESERVICE MANUALSCHEVROLET2006CHEVY EXPRESS G2500, VAN CARGO, 6.6 2REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 2 (ENGINE CONTROL SYSTEM - 4.3L - INTRODUCTION (2 OF 2))REPAIR INSTRUCTIONSTHROTTLE BODY ASSEMBLY REPLACEMENTREMOVAL PROCEDURE
2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2

Removal Procedure

2006 Chevrolet Chevy Express G2500, Van Cargo, 6.6 2SECTION Removal Procedure
WARNING: This page is about a different variant/trim than selected.
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnect/Connect Procedure in Engine Electrical.
  2. Remove the engine cover. Refer to Engine Cover Replacement in Interior Trim.
  3. Remove the air cleaner outlet resonator. Refer to Air Cleaner Outlet Resonator Replacement .
    4. Fig 1: View Of Air Cleaner Outlet Resonator Stud
    GM424550Courtesy of GENERAL MOTORS CORP.
  4. Remove the air cleaner outlet adapter stud.
    5. Fig 2: View Of Cruise Control Cable
    GM325550Courtesy of GENERAL MOTORS CORP.
  5. Remove the cruise control cable. Refer to Cruise Control Cable Replacement in Cruise Control.
    6. Fig 3: Identifying Accelerator Cable/Throttle Body Lever
    GM325556Courtesy of GENERAL MOTORS CORP.
  6. Remove the accelerator cable. Refer to Accelerator Controls Cable Replacement .
  7. Remove the stud and nuts retaining the accelerator control cable bracket and position the bracket aside.
    8. Fig 4: View Of IAC Valve Electrical Connector
    GM312513Courtesy of GENERAL MOTORS CORP.
  8. Disconnect the idle air control (IAC) valve harness connector.
    9. Fig 5: View Of Throttle Position (TP) Sensor Harness Connector
    GM12885Courtesy of GENERAL MOTORS CORP.
  9. Disconnect the throttle position (TP) sensor harness connector.
    10. Fig 6: View Of Throttle Body & Attaching Studs
    GM12852Courtesy of GENERAL MOTORS CORP.
  10. Remove the throttle body retaining studs.
    11. Fig 7: View Of Throttle Body & Gasket
    GM12853Courtesy of GENERAL MOTORS CORP.
  11. Remove the throttle body assembly.
  12. Discard the throttle body seal.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.