Exhaust Manifold - Removal

REMOVAL





1. Recover the refrigerant from the refrigerant system Refrigerant System Recovery.
2. Disconnect and isolate the negative battery cable.
3. Remove the engine cover (1).





4. Remove the air cleaner body (6) Air Cleaner Body - Removal.





5. Raise and support the vehicle Maintenance.
6. Remove the belly pan Belly Pan - Removal.
7. Drain the cooling system Service and Repair.





8. Remove four bolts (1) and the tunnel support brace (2). Reinstall the four bolts (1) to maintain alignment of the frame extensions. Tighten the bolts (1) to 90 Nm (60 ft. lb.).





9. Remove both front tire and wheel assemblies Tires And Wheels - Removal.
10. Remove both front inner wheel well splash shields Splash Shield - Removal.
11. Remove the front fascia (1) Front Bumper Fascia - Removal.





12. Remove the right and left headlamp units (2) Headlamp Unit - Removal.





13. Disconnect the upper coolant hose from the radiator.
14. Disconnect the harness connector from the cooling fan resistor (1).





15. Disconnect the lower coolant hose from the radiator.
16. Disconnect the cooling fan harness connector (3).





17. Remove the bolt (4) and disconnect the A/C liquid line (1) and the A/C discharge line (2) from the A/C condenser tapping block (3).
18. Separate the A/C liquid line from the A/C discharge line. Remove and discard the dual plain seals.
19. Install plugs in, or tape over, the opened refrigerant line fittings and condenser ports.





20. Press down the latch release (3) and remove the hood latch cable (2) from the latch.





21. Disconnect the harness connector (1) from the right and left front impact sensors (3) Front.





22. Disconnect the harness connector (2) from the horn (1).





23. Disengage the harness connector (1) from the bumper reinforcement.





24. Disengage the harness retainer (1) from the bottom of the bumper reinforcement.





25. Remove four bolts (1), eight bolts and washers (2), eight bolts and washers (3) and the cooling module assembly (4) from the vehicle.





26. Remove the exhaust flange nuts (1).
27. Remove the maniverter pipe extension support bolt (2).





28. Remove two nuts (1), four bolts (3) and the maniverter heat shield (2).





29. Disengage the wire harness retainers and disconnect the electrical connectors from the upstream (2) and downstream (3) oxygen sensors.

CAUTION: The maniverter studs are installed in the cylinder head with a thread sealant. If the studs rotate during service this indicates that the seal is broken and the stud must be replaced. Failure to replace the studs can result in engine oil leaking onto the exhaust manifold.

30. Mark the end of the nine maniverter mounting studs with a paint pen or equivalent to indicate possible stud rotation.
31. Remove nine nuts (1) and remove the maniverter (4) from the cylinder head.
32. Check the markings on the studs for indication of rotation. If there is evidence of stud rotation, replace the stud Exhaust Manifold Stud Replacement.
33. Remove and discard the maniverter gasket.
34. If required, remove the upstream (2) and downstream (3) oxygen sensors from the maniverter Oxygen Sensor - Removal.