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Home >> GMC >> 2013 >> Sierra 1500 XFE >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls/Fuel - 4.8L, 5.3L, 6.0L, 6.2L - Repair Instructions >> Repair Instructions >> Compressed Natural Gas Control Module Replacement (Intake Air Temperature) >> Removal Procedure
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Removal Procedure

    WARNING:

    Natural gas is highly flammable. In order to reduce the risk of fire and personal injury, keep sparks, flames, and smoking materials away from the vehicle while you perform the Compressed Natural Gas (CNG) fuel system service.

    WARNING:

    The Compressed Natural Gas (CNG) system operates at pressures up to 24820 kpa (3600 psi). Relieve the CNG fuel system pressure before servicing CNG fuel system components in order to reduce the risk of fire and personal injury.

  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (TP2 - Auxiliary Battery) , Battery Negative Cable Disconnection and Connection (Single Battery) .
    2. Fig 1: IAT Module Electrical Connector
    GM2921018Courtesy of GENERAL MOTORS COMPANY
  2. Remove the red tab (1) and remove the electrical connector (2).
    3. Fig 2: IAT Module
    GM2921022Courtesy of GENERAL MOTORS COMPANY
  3. Remove the fasteners (1) from the IAT module bracket.
  4. Remove the IAT module (2) from the bracket.
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