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Home › Chevrolet › 2017 › Suburban 3500 HD LT › Repair and Diagnosis › Engine Performance › Engine Control Systems › Engine Controls And Fuel - 6.0L (L96) - Repair Instructions › Repair Instructions › Throttle Body Assembly Replacement › Installation Procedure

Installation Procedure

    Fig 1: Throttle Body Assembly
    GM4279401Courtesy of GENERAL MOTORS COMPANY
  1. Install a NEW throttle body gasket (3) to the intake manifold.

    Align the tab of the gasket with the notch in the manifold.

    2. CAUTION:

    Refer to Fastener Caution .

  2. Install the throttle body (2), bolt (4), and nut (1) and tighten to 10 N.m (89 lb in).
    3. Fig 2: View Of CPA Retainer, Engine Harness Electrical Connectors & Harness Clips
    GM1696893Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Verify that the electronic throttle control wiring harness connector seal is properly installed and NOT damaged.

  3. Connect the electronic throttle control wiring harness connector (3).
  4. Air Cleaner Outlet DuctInstall - Air Cleaner Resonator Outlet Duct Replacement 
  5. Connect a scan tool in order to test for proper throttle-opening and throttle-closing range.
  6. Operate the accelerator pedal and monitor the throttle angles. The accelerator pedal should operate freely and without binding between the closed throttle position and the wide open throttle position.
  7. Verify that the vehicle meets the following conditions:
    • The vehicle is NOT in a reduced engine power mode.
    • The ignition is ON.
    • The engine is OFF.
  8. Perform the throttle body idle air flow compensation reset. Throttle Body Idle Air Flow Compensation Reset 
  9. Inspect for coolant leaks.
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