Throttle Body: Service and Repair

THROTTLE BODY

REMOVAL

WARNING: Do not smoke or carry lighted tobacco or open flame of any type when working on or near any fuel-related components. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in personal injury.

CAUTION: Throttle body bore and plate area have a special coating and cannot be cleaned.

1. Remove the air cleaner outlet tube.







2. Remove the pin-type retainers and the accelerator cable cover.







3. Disconnect and unclip the accelerator and speed control cables.







4. Remove the throttle return spring.







5. Disconnect the wiring harness retainer from the throttle body mounting stud.







6. Disconnect the throttle position (TP) sensor electrical connector.







7. Remove the accelerator cable bracket.
1 Remove the retaining bolts.
2 Position aside the accelerator cable bracket.







8. Disconnect the throttle body coolant feed and return hoses.
- Push the connector toward the hose to release pressure.
- Press the coolant hose quick-release coupling button and pull the coolant hose to disconnect.







9. NOTE: Gasket is press-in-place in manifold.

Remove the bolts, stud bolt and the throttle body.
- Remove and discard the throttle body gasket.

10. Clean and inspect the sealing surfaces.

INSTALLATION

1. CAUTION: Upon installation of the throttle body coolant feed and return hoses, make sure the tube clicks into place. Pull on the hose to verify seating.

NOTE: Install a new throttle body gasket.

To install, reverse the removal procedure.