64. Exhaust Manifold Installation

Important: California emissions vehicles are equipped with an additional (PUP) catalytic converter and a different exhaust manifold from federal emissions vehicles.





1. Perform the following if the vehicle is equipped with the PUP catalytic converter:
1.1. Install the new exhaust manifold gasket to the cylinder head.

Notice: Refer to Fastener Notice in Service Precautions.

1.2. Install the exhaust manifold. Secure the exhaust manifold with the 8 nuts and 1 bolt.
Tighten the 8 nuts and 1 bolt to 50 Nm (37 ft. lbs.).
1.3. Install the exhaust manifold-to-engine block bracket.
1.4. Apply anti-seize compound to the threads of the oxygen sensor.
1.5. Install the oxygen sensor.
Tighten the oxygen sensor to 45 Nm (33 ft. lbs.).
1.6. Install the exhaust manifold heat shield. Secure with the 3 bolts and 2 nuts.





2. Perform the following if the vehicle is not equipped with the PUP catalytic converter:
2.1. Install the new exhaust manifold gasket to the cylinder head.

Notice: Refer to Fastener Notice in Service Precautions.

2.2. Install the exhaust manifold. Secure the exhaust manifold with the 1 bolt and the 8 nuts.
Tighten the 8 nuts and 1 bolt to 50 Nm (37 ft. lbs.).
2.3. Install the exhaust manifold-to-engine block bracket.
2.4. Apply anti-seize compound to the threads of the oxygen sensor.
2.5. Install the oxygen sensor.
Tighten the oxygen sensor to 45 Nm (33 ft. lbs.).
2.6. Install the exhaust manifold heat shield to the exhaust manifold. Secure the exhaust manifold heat shield with the 4 bolts and 1 nut.