C 2500 Suburban 2WD V8-454 7.4L VIN J SFI (1998)
Exhaust Manifold: Service and Repair
REMOVAL PROCEDURE
1. Open the hood.
2. Disconnect the battery negative cable from the battery.
CAUTION: Refer to Battery Disconnect Caution in Service Precautions.
3. Remove the oil level indicator and tube from the engine block.
4. Remove the EGR valve pipe from the left exhaust manifold.
5. Remove the spark plugs cylinder head.
6. Raise the vehicle and support the vehicle with safety stands.
7. Remove the exhaust pipe from the exhaust manifold.
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Lower the vehicle.
8. Remove the exhaust manifold retaining nuts.
9. Remove the exhaust manifolds from the cylinder head.
10. Remove the exhaust manifold gasket from the cylinder head.
11. Clean and check the gasket mating surface and the cylinder head. Refer to Cylinder Head Clean and Inspect under Engine Unit Repair.
INSTALLATION PROCEDURE