Exhaust Manifold - LH

Exhaust Manifold - LH





















Removal

1. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Jacking and Lifting Service and Repair.

2. NOTE: LH shown, RH similar.

If equipped, remove the 4 nuts (2 shown) and the strut tower cross brace.





3. Detach and disconnect the RH and LH Heated Oxygen Sensor (HO2S) electrical connectors.

4. Remove and discard the LH and RH catalytic converter-to-exhaust manifold nuts and lower the catalytic converter assembly.

5. Remove the 2 bolts and the LH exhaust manifold heat shield.

6. Remove the 6 nuts and the LH exhaust manifold.
- Discard the nuts and gasket.

7. Clean and inspect the LH exhaust manifold. For additional information, refer to Engine System - General Information Exhaust Manifold Cleaning and Inspection.

8. Remove and discard the 6 LH exhaust manifold studs.

9. NOTICE: Do not use metal scrapers, wire brushes, power abrasive discs or other abrasive means to clean the sealing surfaces. These may cause scratches and gouges resulting in leak paths. Use a plastic scraper to clean the sealing surfaces.

Clean the exhaust manifold mating surface of the cylinder head with metal surface prep. Follow the directions on the packaging.

Installation

1. Install 6 new LH exhaust manifold studs.
- Tighten to 12 Nm (106 lb-in).

2. NOTICE: Failure to tighten the exhaust manifold nuts to specification a second time will cause the exhaust manifold to develop an exhaust leak.

Using a new gasket, install the LH exhaust manifold and 6 new nuts. Tighten in 2 stages in the sequence shown:

- Stage 1: Tighten to 19 Nm (168 lb-in).

- Stage 2: Tighten to 25 Nm (18 lb-ft).





3. Install the LH exhaust manifold heat shield and the 2 bolts.
- Tighten to 12 Nm (106 lb-in).

4. Raise the catalytic converter and install the new LH and RH catalytic converter-to-exhaust manifold nuts.
- Tighten to 45 Nm (35 lb-ft).

5. Connect and attach the RH and LH HO2S electrical connectors.

6. NOTE: LH shown, RH similar.

If equipped, install the strut tower cross brace and the 4 nuts (2 shown).

- Tighten to 35 Nm (26 lb-ft).