Exhaust Manifold: Service and Repair

Exhaust Manifold Replacement

Removal Procedure




1. Remove the exhaust manifold heat shield. Refer to Exhaust Manifold Heat Shield Replacement (Exhaust Manifold Heat Shield Replacement).
2. Disconnect the heated oxygen (HO2) sensor 1 and sensor 2. Refer to Heated Oxygen Sensor Replacement - Sensor 1 (Heated Oxygen Sensor Replacement - Sensor 1) and Heated Oxygen Sensor Replacement - Sensor 2 (Heated Oxygen Sensor Replacement - Sensor 2).
3. Remove the catalytic converter. Refer to Catalytic Converter Replacement (Service and Repair).
4. Remove and discard the exhaust manifold nuts (1).
5. Remove the exhaust manifold (3).
6. Remove and discard the exhaust manifold gasket (2).
7. Clean the sealing surface of the engine block.

Installation Procedure




1. Install a NEW exhaust manifold gasket (2) onto the studs.
2. Install the exhaust manifold (3).





Caution: Refer to Fastener Caution (Fastener Caution).

Note: Install the new exhaust nuts.

3. Install NEW exhaust manifold nuts (1) and tighten in the sequence shown to 14 Nm (10 lb ft).
4. Install the catalytic converter. Refer to Catalytic Converter Replacement (Service and Repair).
5. Connect the heated oxygen (HO2) sensor 1 and sensor 2. Refer to Heated Oxygen Sensor Replacement - Sensor 1 (Heated Oxygen Sensor Replacement - Sensor 1) and Heated Oxygen Sensor Replacement - Sensor 2 (Heated Oxygen Sensor Replacement - Sensor 2).
6. Install the exhaust manifold heat shield. Refer to Exhaust Manifold Heat Shield Replacement (Exhaust Manifold Heat Shield Replacement).