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Home >> Chevrolet >> 2009 >> Chevy Express G2500, Van Cargo Extended, 6.6 6 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 6.6L LMM - Introduction >> Repair Instructions >> Intake Air Heater Replacement >> Removal Procedure

Removal Procedure

    Fig 1: View Of Engine Wiring Harness Electrical Connector
    GM1862030Courtesy of GENERAL MOTORS CORP.
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Remove the charge air cooler outlet pipe. Refer to Charged Air Cooler Hoses/Pipes Replacement (Inlet) or Charged Air Cooler Hoses/Pipes Replacement (Outlet) .
  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: Identifying Intake Air Valve Bolts
    GM1862033Courtesy of GENERAL MOTORS CORP.
  6. Remove the intake air valve bolts and valve.
  7. Fig 3: View Of IAH Gasket
    GM1862035Courtesy of GENERAL MOTORS CORP.

    Remove the IAH and remove and discard the IAH gasket.
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