Without RPO NC1 or NF7

Exhaust Manifold Removal - Left (W/O RPO, NC1 or NF7)





1. Remove the oxygen sensor (1) and inspect the sensor for excessive deposits or damage. Replace the oxygen sensor if necessary.





2. Remove the exhaust manifold to crossover pipe bolts (3).
3. Remove the exhaust manifold bolts (6).
4. Remove the exhaust manifold (2).

Important: DO NOT reuse the exhaust manifold to crossover pipe gasket.

5. Remove and discard the exhaust manifold to crossover pipe gasket (5).

Important: DO NOT reuse the exhaust manifold gasket.

6. Remove and discard the exhaust manifold gasket (1).





7. Disconnect the EGR inlet tube nut (1) from the exhaust crossover.

Important: The EGR valve inlet pipe incorporates a crush seal connection at the water crossover. The EGR valve inlet pipe must be replaced if disconnected from the water crossover.

8. Remove the EGR inlet pipe bolt (2) and flange (3) from the water crossover.
9. Remove the EGR inlet tube and discard.





10. Remove the exhaust crossover stud (3) and bolt (1).
11. Remove the exhaust crossover (2).





12. If equipped, remove the left coolant heater (1) as follows:
12.1. Remove the coolant heater bolt.
12.2. Remove the coolant heater from the cylinder block.