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Home >> Cadillac >> 2021 >> CT4 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Engine Controls And Fuel - 2.7L (L3B) - Repair Instructions) >> Repair Instructions >> Throttle Body Cleaning

Throttle Body Cleaning

WARNING: This page is about a different variant/trim than selected.
  1. GM5399157Courtesy of GENERAL MOTORS COMPANY

    Retainer Spring (1) - Release

  2. Charge Air Cooler Outlet Air Tube (2) @ Throttle Body (3) - Reposition
  3. Disconnect the electrical connector.
  4. Fully open the throttle valve to Inspect the throttle body bore and the throttle valve plate for any deposits.
  5. CAUTION:

    Do not subject a throttle body assembly which contains the following components to an immersion cleaner or a strong solvent:

    • Throttle position (TP) sensor
    • Throttle actuator control components
    • Sealed throttle shaft bearings

    The cleaners will damage the electric components or sensors.

    The cleaners will damage some of these components that contain seals or O-rings.

    Solvents can wash away or break down the grease used on non-serviceable throttle shaft bearings.

    Never use a wire brush or scraper to clean the throttle body. A wire brush or sharp tools may damage the throttle body components.

    Do not use a cleaner that contains methyl ethyl ketone. This extremely strong solvent may damage components and is not necessary for this type of cleaning.

  6. Use a clean shop towel and Top Engine Cleaner or equivalent product to clean the throttle body bore and the throttle valve plate. Adhesives, Fluids, Lubricants, and Sealers

    If necessary, use a parts cleaning brush to remove heavy deposits.

  7. Connect the electrical connector.
  8. GM5399157Courtesy of GENERAL MOTORS COMPANY

    Charge Air Cooler Outlet Air Tube (2) @ Throttle Body (3) - Install

  9. Retainer Spring (1) - Engage
  10. Perform the following procedure/test: Diagnostic Repair Verification
  11. Perform the configuration/reset function: Throttle Body Idle Air Flow Compensation Reset