Intake Manifold: Service and Repair

Intake Manifold

Intake Manifold (View 1 of 4)










Intake Manifold (View 2 of 4)










Intake Manifold (View 3 of 4)










Intake Manifold (View 4 of 4)









Removal and Installation

All vehicles

1. With vehicle in NEUTRAL, position it on a hoist.

2. Disconnect the battery ground cable.

3. Remove the Air Cleaner (ACL) outlet pipe.

4. Remove the bolt, 2 nuts and the generator air inlet duct.
- To install, tighten to 6 Nm (53 lb-in).





5. Depress the locking ring and disconnect the brake booster vacuum supply tube from the intake manifold.





6. Disconnect the Evaporative Emission (EVAP) tube from the intake manifold.

7. Disconnect the 2 swirl control valve electrical connectors.

8. Detach the 2 wiring harness pin-type retainers and remove the fuel rail insulator.





9. Detach the electrical connector pin-type retainer.





10. If equipped, remove the 7 screws and the underbody cover.





Vehicles equipped with manual transaxle

11. Remove the 2 bolts and position the clutch slave cylinder aside.
- To install, tighten to 22 Nm (16 lb-ft).

Vehicles with Secondary Air Injection (AIR)

12. Disconnect the Secondary Air Injection (AIR) pump electrical connector.

13. Remove the 3 bolts and position the AIR pump aside.
- To install, tighten to 30 Nm (22 lb-ft).

14. Disconnect the vacuum hose from the intake manifold.

All vehicles

15. Detach the radiator hose retaining clip from the intake manifold.

16. Remove the intake manifold lower bolt.
- To install, tighten to 18 Nm (159 lb-in).





17. Disconnect the Manifold Absolute Pressure (MAP) sensor electrical connector.

18. Disconnect the Intake Manifold Runner Control (IMRC) actuator electrical connector.

19. Disconnect the Engine Oil Pressure (EOP) switch electrical connector.
- Detach the wiring harness pin-type retainer and position the wiring harness aside.

20. Remove the nut and the S-terminal wire from the starter.
- To install, tighten to 12 Nm (106 lb-in).

21. Disconnect the Throttle Body (TB) electrical connector.

22. NOTE: Discard the TB gasket.

Remove the 4 bolts and position the TB aside.
- To install, tighten to 10 Nm (89 lb-in).

23. Detach the 2 pin-type retainers from the intake manifold.





24. NOTE: There are 2 different size bolts used. Mark the location of the bolts to make sure they are installed in their original locations.

Remove the 7 bolts and position the intake manifold aside to access the crankcase vent hose clamp and the EGR tube.

- To install, tighten to 18 Nm (159 lb-in).

25. Release the clamp and disconnect the crankcase vent hose.

26. Detach the Knock Sensor (KS) electrical connector pin-type retainer.

27. Remove the EGR tube.
- To install, tighten to 55 Nm (41 lb-ft).

28. Remove the intake manifold and discard the gaskets.
- To install, tighten to 18 Nm (159 lb-in).

29. NOTICE: If the engine is repaired or replaced because of upper engine failure, typically including valve or piston damage, check the intake manifold for metal debris. If metal debris is found, install a new intake manifold. Failure to follow these instructions can result in engine damage.

To install, reverse the removal procedure.

- Install new TB and intake manifold gaskets.