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Home >> Chevrolet >> 2011 >> Chevy Express G2500, Van Cargo Extended, 6.6 L >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 6.6L (LGH) - Repair Instructions >> Repair Instructions >> Intake Air Heater Replacement >> Removal Procedure

Removal Procedure

  1. Fig 1: Engine Wiring Harness Electrical Connector
    GM1862030Courtesy of GENERAL MOTORS CORP.

    Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Remove the charge air cooler outlet pipe. Refer to Charge Air Cooler Outlet Pipe Replacement .
  3. Disconnect the engine wiring harness electrical connector (1) from the intake air heater (IAH).
  4. Disconnect the engine wiring harness electrical connector (2) from the intake air valve.
  5. Remove the nut and the positive battery cable from the IAH.
    6. Fig 2: Intake Air Valve Bolts
    GM1862033Courtesy of GENERAL MOTORS CORP.
  6. Remove the throttle body assembly. Refer to Throttle Body Assembly Replacement .
    7. Fig 3: IAH Gasket
    GM1862035Courtesy of GENERAL MOTORS CORP.
  7. Remove the IAH and remove and discard the IAH gasket.
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