Part Description: 2007 GMC Sierra 3500 Classic Engine Exhaust Manifold
More Info
Vehicle Fitment
2007 GMC Sierra 3500 Classic | SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL
FAQ for Exhaust Manifold Repair
Q: How to remove the exhaust manifold-right side (4.8L, 5.3L, 6.0L, and 6.2L)?
A:
The proper way is to remove the heated oxygen sensor (HO2S), the right wheelhouse liner, the spark plug wires, the oil level indicator tube from the engine block, the exhaust manifold gasket, and the exhaust manifold seal.
By Bob
GM Specialist
01/11/2022
Q: What should be noticed before installing the exhaust manifold-left side?
A:
You shall tighten the exhaust manifold bolts as specified in the service procedure, clean debris or thread-locking material around the cylinder head exhaust manifold bolt hole threads, and not apply a sealant to the first 3 threads of the bolt.
By Bob
GM Specialist
01/11/2022
Q: What kind of tools will be required in the replacement of the exhaust manifold-left side?
A:
The tools required include J 42640 Steering Column Anti-Rotation Pin.
By Bob
GM Specialist
01/11/2022
Q: How to install the exhaust manifold-right side (4.8L, 5.3L, 6.0L, and 6.2L)?
A:
The proper way is to install a new catalytic converter seal to the exhaust manifold, the new exhaust manifold gasket and exhaust manifold to the cylinder head, the oil level indicator tube, the spark plug wires, and the right wheelhouse liner.
By Bob
GM Specialist
01/11/2022
FAQ for Other Repair Info
Q: How to remove the muffler (1500 Series w/6.2L)?
A:
The proper way is to remove the spare tire, the rear axle vent hose from the rear axle, the rear shock absorber lower bolts and nuts, the catalytic converter to Muffler nuts, the insulator from the tailpipe hanger, and the muffler assembly.
Q: How to remove the exhaust heat shield-dash panel?
A:
The proper way is to remove the Exhaust Heat Shield nuts, both wheelhouse panels, the exhaust heat shield from the dash panel studs, and the heat shield through the respective wheelwell.
Q: What is the removal procedure for the exhaust hanger mounting bracket (6.0L, 6.6L)?
A:
The procedure is to remove the exhaust manifold pipe and the left catalytic converter if equipped with a 6.0L engine, the catalytic converter if equipped with a 6.6L engine, and the Exhaust Pipe hanger bracket bolts and bracket.