Throttle Body: Service and Repair

THROTTLE BODY ASSEMBLY REPLACEMENT

REMOVAL PROCEDURE
1. Disconnect the negative battery cable.
2. Remove the engine cover.
3. Remove the air cleaner outlet resonator.




4. Remove the air cleaner outlet adapter stud.




5. Remove the cruise control cable.




6. Remove the accelerator cable.
7. Remove the stud and nuts retaining the accelerator control cable bracket and position the bracket aside.




8. Disconnect the idle air control (IAC) valve harness connector.




9. Disconnect the throttle position (TP) sensor harness connector.




10. Remove the throttle body retaining studs.




11. Remove the throttle body assembly.
12. Discard the throttle body seal.

INSTALLATION PROCEDURE
1. Clean the gasket surface on the intake manifold.

CAUTION: Refer to Safety Glasses Caution in Service Precautions.




2. Install the throttle body assembly with a new seal.




3. Install the throttle body assembly retaining studs.

NOTE: Refer to Fastener Notice in Service Precautions.

Tighten
Tighten the studs to 9 N.m (80 lb in).




4. Install the adapter stud for the air cleaner outlet resonator.

Tighten
Tighten the fasteners to 8 N.m (71 lb in).




5. Connect the TP sensor harness connector.




6. Connect the IAC valve harness connector.




7. Install the accelerator control cable bracket using the mounting fasteners.

Tighten
Tighten the fasteners to 12 N.m (106 lb in).




8. Install the accelerator cable.

IMPORTANT: Make sure the accelerator and the cruise control cables do not hold the throttle open.




9. Install the cruise control cable.
10. Install the air cleaner outlet resonator.
11. Install the engine cover.
12. Connect the negative battery cable.
13. Use the following procedure in order to inspect the accelerator pedal operation.
13.1. Depress the pedal to the floor.
13.2. Release the accelerator pedal.

IMPORTANT: The accelerator pedal should operate freely without binding between full and closed throttle.