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How to Replace the Throttle Body in a Mitsubishi Galant

by Contributor

The Mitsubishi Galant represents a good value for the economy-minded shopper. In 2004, the Galant was reworked and is now bigger and more powerful. If you begin having problems with your throttle, then replacing the throttle body might be in order. Follow these do-it- yourself repair details to replace the throttle body, which can effect both performance and fuel efficiency.

Remove the Throttle Body

Step 1

Relieve the pressure in the fuel system. Keep in mind that the pressure is maintained even when the vehicle is cold. Drain the cooling system (see Warnings).

Step 2

Mark the accelerator cable adjuster bolt on the mounting flange to note its location to insure proper re-installation. Loosen the adjusting bolt for the throttle cable and remove it. Take the throttle cable off the throttle body lever.

Step 3

Take out the breather hose connection and then remove the air intake hose from the throttle body and push it to one side. Label all the throttle body vacuum hoses and electrical connectors and their fittings. Disconnect the vacuum hoses and connectors.

Step 4

Pull the water hoses from the base of the throttle body. Take out the air fitting and its gasket.

Remove the fasteners that secure the throttle body. Lift the throttle body off the engine. Pull the gasket and throw it away. Place a clean shop cloth over the opening to prevent debris from falling into the engine.

Install the Throttle Body

Step 1

Clean any dirt, debris and old gasket matter from the throttle body mating surfaces with a plastic scraper. Position a new gasket on the intake manifold.

Step 2

Set the new throttle body in place on the manifold. Tighten the fasteners with a torque wrench.

Step 3

Install new clamps and reconnect the water hoses to the throttle body. Engage the electrical connectors and the vacuum hoses that were labeled earlier.

Step 4

Continue the installation, reconnecting and installing components in the reverse order of their removal. Reconnect the battery ground cable and tighten the bolt at the terminal.

Refill the cooling system with the proper amount, type and mix of coolant. Start the engine and check for leaks. Make any necessary adjustments. Check the level of the coolant and add more, as needed.


  • Drain the coolant into a container that can be sealed. Dogs, cats and farm animals will drink coolant that is left in open containers or pooled on the floor and ingestion is usually fatal. Reuse coolant unless it is contaminated or old. Dispose of used coolant properly.
  • Never smoke or expose an open flame of any kind to the area near fuel-related engine parts.

Items you will need

  • Mechanic's toolset
  • Clean shop cloths
  • Replacement gasket
  • Plastic scraper
  • Sealable container
  • Torque wrench
  • Coolant

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