Throttle Body: Service and Repair

Removing Fresh Air Intake

Remove:
- throttle pulley cover.
- fresh air intake between air cleaner (ACL) and throttle body (TB).
- link between throttle pulley and throttle body.





Removing Throttle Body

Remove:
- connector from throttle position (TP) sensor.
- throttle body from intake manifold.





Installing Throttle Position Sensor

- Move throttle position sensor to new throttle body.
- Install a new gasket on the throttle body.

NOTE: The throttle position sensor is not adjustable.





Installing Throttle Body

- Install the new throttle body on the intake manifold.
- Connect connector to throttle position sensor.





Checking Link

- Undo link locknut.
- Pull back link as far as possible, release one end and check that the link springs back easily to innermost position.





Installing Link

- Locate link.
- Check that throttle spindle is in contact with adjustment screw (A) and that throttle pulley is in contact with idling stop (B).
- Tighten link locknut (C).
- Open and close throttle, check that the throttle spindle is in contact with the adjustment screw (A) when the throttle is closed.





Check/Adjust Throttle Pulley and Throttle Cable

- Pulley should move easily without sticking.
- The cable should be taut in idling position but must not affect throttle pulley position. Pulley should seat against idling stop. Adjust cable as required.
- Press accelerator pedal to floor and check that pulley seats against full-load stop.
- Check that the engine control module (ECM) is receiving information that the throttle is open.





Installing Fresh Air Intake

Install:
- fresh air intake between air cleaner and throttle body.
- throttle pulley cover.