Exhaust Manifold: Service and Repair
Removal Procedure1. Disconnect the negative battery cable.
2. Disconnect the pre-converter oxygen sensor connector.
3. Remove the exhaust manifold heat shield bolts.
4. Remove the exhaust manifold heat shield.
5. Remove the auxiliary catalytic converter upper flange nuts from the exhaust manifold.
6. Remove the exhaust manifold retaining nuts in the sequence shown.
7. Remove the exhaust manifold.
8. Remove the exhaust manifold gasket.
9. Clean the sealing surfaces of the exhaust manifold and the cylinder head.
Installation Procedure
1. Install the exhaust manifold gasket.
2. Install the exhaust manifold.
3. Install the exhaust manifold retaining nuts and tighten in the sequence shown.
Tighten the exhaust manifold retaining nuts 15 Nm (11 ft. lbs.).
4. Install the auxiliary catalytic converter upper flange nuts to the exhaust manifold.
Tighten the auxiliary catalytic converter-to-exhaust manifold nuts to 40 Nm (30 ft. lbs.).
5. Install the exhaust manifold heat shield.
6. Install the exhaust manifold heat shield bolts.
Tighten the exhaust manifold heat shield bolts to 8 Nm (71 inch lbs.).
7. Connect the pre-converter oxygen sensor connector.
8. Connect the negative battery.