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Tim's Auto Repair
Tim's Auto Repair, mechanic
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special: replacing..exhaust manifold gasket on a 2004 6.0 L silverado

This answer was rated:

is there anything special that needs to be done when replacing an exhaust manifold gasket on a 2004 6.0 L silverado?

well..

just make sure you clean off the old gasket from the cylinder head and the exhast manifold......but,no,,nothing special

thanks

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Tim's Auto Repair and 8 other Chevy Specialists are ready to help you
Customer: replied 5 years ago.
Can I do this without removing any of the piping?

yes...you can just take the bolts out at the head...and pull the manifols back enough to replace the gaskets..thanks....i will send you some instructions on replacing the manifold,,,but you dont need to do all this just to replace the gaskets thanks

 

2004 Chevy Truck Silverado 2500 V8-6.0L VIN U
Exhaust Manifold Service and Repair, Removal and Replacement: Exhaust Manifold Replacement - Left
Exhaust Manifold Replacement - Left (4.8L, 5.3L, and 6.0L Engine)
Removal Procedure



1. Raise and suitably support the vehicle.
2. Remove the exhaust manifold pipe nuts.
3. Lower the vehicle.
4. Remove the spark plugs.



5. Remove the exhaust manifold bolts, manifold, and gasket.
6. Discard the gasket.



7. Remove the heat shield bolts (3), and shield (2) from the exhaust manifold (1), if necessary.
8. Clean and inspect the exhaust manifold.

Installation Procedure




Install the heat shield (2), and bolts (3) to the exhaust manifold (1), if necessary.
Tighten the bolts to 9 Nm (80 inch lbs.).



2. Important:
^ Tighten the exhaust manifold bolts as specified in the service procedure. Improperly installed and/or leaking exhaust manifold gaskets may affect vehicle emissions and/or On-Board Diagnostics (OBD) II system performance.
^ The cylinder head exhaust manifold bolt hole threads must be clean and free of debris or threadlocking material.

Important: Do not apply sealant to the first three threads of the bolt.

Apply a 5 mm (0.2 inch) wide band of threadlock GM P/N 12345493 (Canadian P/N 10953488), or equivalent to the threads of the exhaust manifold bolts.
3. Install the exhaust manifold, NEW gasket and bolts.
1. Tighten the bolts a first pass to 15 Nm (11 ft. lbs.). Tighten the bolts beginning with the center two bolts. Alternate from side-to-side, and work toward the outside bolts.
2. Tighten the bolts a final pass to 25 Nm (18 ft. lbs.). Tighten the bolts beginning with the center two bolts. Alternate from side-to-side, and work toward the outside bolts.
4. Using a flat punch, bend over the exposed edge of the exhaust manifold gasket at the rear of the left cylinder head.
5. Install the spark plugs.
6. Raise the vehicle.



7. Install the exhaust manifold pipe nuts.
Tighten the nuts to 50 Nm (37 ft. lbs.).
8. Lower the vehicle.

2004 Chevy Truck Silverado 2500 2WD V8-6.0L VIN U
Exhaust Manifold Service and Repair, Removal and Replacement: Exhaust Manifold Replacement - Right
Exhaust Manifold Replacement - Right (4.8L, 5.3L, and 6.0L Engines)



1. Raise and suitably support the vehicle.
2. Remove the exhaust manifold pipe nuts.
3. Lower the vehicle.
4. Remove the spark plugs.



5. Remove the exhaust manifold bolts, manifold, and gasket.
6. Discard the gasket.



7. Remove the heat shield bolts (1), and shield (2) from the exhaust manifold (1), if necessary.
8. Clean and inspect the exhaust manifold.

Installation Procedure




1. Install the heat shield (2), and bolts (1) to the exhaust manifold (1), if necessary.
Tighten the bolts to 9 Nm (80 inch lbs.).



2. Important:
^ Tighten the exhaust manifold bolts as specified in the service procedure. Improperly installed and/or leaking exhaust manifold gaskets may affect vehicle emissions and/or On-Board Diagnostics (OBD) II system performance.
^ The cylinder head exhaust manifold bolt hole threads must be clean and free of debris or threadlocking material.

Important: Do not apply sealant to the first three threads of the bolt.

Apply a 5 mm (0.2 inch) wide band of threadlock GM P/N 12345493 (Canadian P/N 10953488), or equivalent to the threads of the exhaust manifold bolts.
3. Install the exhaust manifold, NEW gasket and bolts.
1. Tighten the bolts a first pass to 15 Nm (11 ft. lbs.). Tighten the bolts beginning with the center 2 bolts. Alternate from side-to-side, and work toward the outside bolts.
2. Tighten the bolts a final pass to 25 Nm (18 ft. lbs.). Tighten the bolts beginning with the center 2 bolts. Alternate from side-to-side, and work toward the outside bolts.
4. Using a flat punch, bend over the exposed edge of the exhaust manifold gasket at the front of the right cylinder head.
5. Install the spark plugs.
6. Raise the vehicle.



7. Install the exhaust manifold pipe nuts.
Tighten the nuts to 50 Nm (37 ft. lbs.).
8. Lower the vehicle.
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