Throttle Body: Service and Repair
THROTTLE BODY ASSEMBLY REPLACEMENTREMOVAL PROCEDURE
1. Remove the front suspension support brace (1).
2. Drain the engine coolant. Refer to Draining and Filling Cooling System in Cooling System.
Throttle Body Assembly:
3. Remove the four fasteners and the engine surge tank cover (1).
4. Remove the four nuts (1) retaining the intake surge tank (3).
5. Remove the two air inlet duct (4) fasteners (2) and remove the engine surge tank (3).
6. Loosen the hose clamps and remove the intake air inlet duct (4) from the throttle body.
7. Disconnect the mass air flow (MAF) sensor electrical connector.
8. Disconnect the throttle position (TP) sensor electrical connector.
9. Disconnect the two coolant hoses (1, 3) from the throttle body (2).
10. Disconnect idle air control (IAC) air hose from the top of the throttle body.
11. Disconnect the accelerator control cable from the throttle body. Rotate the throttle lever (1) to wide open throttle (WOT) and remove the cable end from the slot (2).
12. Remove the two fasteners and the accelerator cable bracket from the throttle body.
13. Extend the transmission throttle valve cable and disconnect the cable end from the throttle lever.
14. Remove the two bolts and the four nuts attaching the intake collector (1) to the intake manifold.
15. Remove the two bolts and the two nuts attaching the throttle body (3) to the intake collector (1).
16. Remove the breather hose (2) from the throttle body (3).
17. Move the throttle body towards the front, while sliding the intake collector towards the rear, in order to remove the throttle body from the vehicle.
INSTALLATION PROCEDURE
1. Install a new throttle body gasket (1) onto the intake collector (2).
2. Connect the breather hose (2) to the throttle body (3).
3. Install the throttle body (3) onto the intake collector (1).
4. Slide the intake collector (1) forward and attach to the intake manifold.
5. Secure the intake collector to the intake manifold with the 2 bolts and 4 nuts.
NOTE: Refer to Fastener Notice in Service Precautions.
Tighten
Tighten the fasteners to 23 N.m (16 lb ft).
6. Secure the throttle body to the intake collector with the 2 nuts and 2 bolts.
Tighten
Tighten the fasteners to 12 N.m (8.5 lb ft).
7. Connect the accelerator control cable to the throttle body. Rotate the throttle lever (1) to WOT and insert the cable end into the slot (2).
8. Connect the transmission throttle valve cable to the throttle lever.
9. Adjust the transmission throttle valve cable as necessary. Refer to TV Cable Adjustment in Automatic Transmission.
10. Adjust the accelerator control cable as necessary. Refer to Accelerator Cable Adjustment.
11. Connect the two coolant hoses (1, 3) to the throttle body (2).
12. Connect the IAC air hose to the throttle body.
13. Connect the TP sensor electrical connector.
14. Connect the MAF sensor electrical connector.
15. Connect the intake air inlet duct (4) to the throttle body.
16. Secure the inlet duct with the hose clamp.
17. Connect the intake surge tank (3) to the intake manifold.
18. Secure the intake surge tank with four nuts (1).
Tighten
Tighten the nuts to 23 N.m (16 lb ft).
Throttle Body Assembly:
19. Install the engine surge tank cover (1) and secure with the four fasteners.
20. Install the front suspension brace (1).
21. Refill the engine coolant. Refer to Draining and Filling Cooling System in Cooling System.