Removing the throttle on a 2002 Lexus ES300 is a relatively simple process that can be completed in a few hours with the right tools and a little bit of mechanical know-how. The throttle body is located on the intake manifold and is responsible for controlling the amount of air that enters the engine. Removing the throttle body is necessary for cleaning or replacing it. An excessively dirty or faulty throttle body can result in poor engine performance, rough idling, and increased emissions. Replacing the throttle body on a 2002 Lexus ES300 is a relatively simple and inexpensive repair that can improve the performance of your vehicle. Here are the steps on how to do it:
1. Disconnect the negative battery terminal.2. Remove the air intake hose from the throttle body.3. Disconnect the electrical connector from the throttle body.4. Remove the bolts that secure the throttle body to the intake manifold.5. Carefully lift the throttle body off of the intake manifold.6. Clean the throttle body and the intake manifold with a throttle body cleaner.7. Reinstall the throttle body onto the intake manifold.8. Tighten the bolts that secure the throttle body to the intake manifold.9. Reconnect the electrical connector to the throttle body.10. Reinstall the air intake hose to the throttle body.11. Reconnect the negative battery terminal.12. Start the engine and check for any leaks.
