79. Exhaust Manifold Installation - Right

Notice: Refer to Fastener Notice in Service Precautions.

1. If the engine is equipped with coolant heaters, install the right side (1) heater as follows:
1.1. Place the coolant heater (1) in position on the cylinder block.
1.2. Install the coolant heater bolt.
- Tighten the coolant heater bolt to 10 Nm (89 lb in).





2. Position a new manifold gasket (1) in place on the cylinder head studs.
3. Using two hands, position the manifold (2) onto the cylinder head.
4. Install two outer manifold nuts (3) to hold the manifold in place.
5. Install the remaining manifold nuts.
- Tighten the exhaust manifold nuts (3) to 25 Nm (18 lb ft).





6. Coat the oxygen sensor threads with high temperature anti-seize, GM P/N 5613695 or equivalent.
7. Install the oxygen sensor (1).

- Tighten the oxygen sensor to 40 Nm (30 lb ft).