Exhaust Manifold: Service and Repair

Exhaust Manifold Replacement

Removal Procedure

Caution: In order to avoid being burned, do not service the exhaust system while it is still hot. Service the system when it is cool.

Caution: Refer to Battery Disconnect Caution.

1. Disconnect the negative battery cable.
2. Raise and properly support the vehicle.




3. Remove the heated oxygen sensor (HO2S) 1 (1).
4. Remove the exhaust pipe hanger (2).
5. Remove the following components from the exhaust manifold flange:
^ Two bolts
^ The springs
6. Remove the exhaust manifold flange gasket.




7. Remove one bolt (1) from the manifold support bracket to exhaust manifold.




8. Remove the upper heat insulator bolts.
9. Remove the upper heat insulator.
10. Remove the 2 exhaust manifold nuts (1) and 3 exhaust manifold bolts (2).
11. Remove the following components:
^ The exhaust manifold
^ The exhaust manifold gasket
12. Remove the lower heat insulator bolts.
13. Remove the lower heat insulator.

Installation Procedure

Notice: Refer to Fastener Notice.

1. Install the lower heat insulator.
2. Install the lower heat insulator bolts.

Tighten the lower heat insulator bolts to 12 N.m (9 lb ft).

3. Install the following components:
^ The exhaust manifold gasket
^ The exhaust manifold
4. Install the 2 exhaust manifold nuts (1) and 3 exhaust manifold bolts (2).

Tighten the exhaust manifold nuts and bolts to 37 N.m (27 lb ft).

5. Install the upper heat insulator.




6. Install the upper heat insulator bolts.

Tighten the upper heat insulator bolts to 18 N.m (13 lb ft).




7. Install one bolt (1) to the manifold support bracket to exhaust manifold.

Tighten the exhaust manifold support bracket bolt to 49 N.m (37 lb ft).

8. Install the exhaust manifold flange gasket.
9. Install the following components to the exhaust manifold flange:
^ The springs
^ Two bolts

Tighten the exhaust manifold flange bolts to 43 N.m (32 lb ft).

10. Install the exhaust pipe hanger (2).




11. Install the HO2S1 (1).
12. Lower the vehicle. Caution: Refer to Battery Disconnect Caution.

13. Connect the negative battery cable.