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Removal (3.8L - VIN K)

WARNING: This page is about a different car, the 2003 Pontiac Grand Prix, 2003 Chevrolet Monte Carlo, 2003 Chevrolet Impala, 2003 Buick Regal, and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove fuel injector sight shield (upper engine cover) from engine. Partially drain the cooling system. Remove the air cleaner intake duct. Disconnect the Idle Air Control (IAC) valve electrical connector. See Figure. Disconnect the Throttle Position (TP) sensor electrical connector.
  2. Disconnect the Mass Airflow (MAF) sensor electrical connector. Remove the accelerator controls cable bracket. Disconnect the electrical harness retainer clip from the accelerator controls cable bracket, if applicable. Remove the vacuum hoses from the throttle body.
  3. Remove the nut from the air injection pipe, if applicable. Remove the throttle body support bracket bolts. Remove the throttle body support bracket. Remove the throttle body nuts. Remove the throttle body assembly. Clean the throttle body gasket mating surfaces.
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