Thursday, February 13, 2014
The Exhaust Is Leaking at the Motor for My 2001 GMC Sierra 2500 6 0L
Leaking exhaust at the engine on the 6.0-Liter GMC engine means the exhaust manifold gasket is faulty and there no longer is a good seal between the exhaust manifold and the cylinder head. To fix this leak, it is necessary to remove the exhaust manifold and replace the gasket. The exhaust manifold is secured to the cylinder head with six bolts.
Instructions
Removal
- 1
Lift the vehicle hood. Ensure the exhaust leak is coming from the mating surface between the cylinder head and the exhaust manifold, not the EGR valve or where the manifold meets the down pipe. Mark each spark plug wire with the paint marker to identify which wire belongs on what spark plug.
2Turn each spark plug boot about a half turn and pull it straight off the spark plug. Do not remove any plug wires from their respective coils.
3Remove each exhaust manifold mounting bolt with the proper size socket and ratchet. Gently pull the manifold away from the cylinder head a bit and remove the faulty gasket from the cylinder head.
Installation
- 4
Hold the new exhaust gasket to the exhaust manifold. Press the manifold and gasket to the cylinder head. Hand-tighten each exhaust manifold bolt.
5Tighten the exhaust manifold bolts to 10 foot-pounds of torque with the proper size socket and torque wrench. First torque the inside bolts, then the two outside bolts. Once all of the bolts are torqued to 10 foot-pounds, repeat the same process to 15 foot-pounds of torque with the socket and torque wrench.
6Install each spark plug wire by pushing it onto the proper spark plug. Pay attention to the marks previously made so the firing order is not disturbed. Shut the vehicle hood. Check the exhaust manifold bolt torque after the engine is warmed and cooled twice to ensure they maintain 15 foot-pounds of torque.
No comments:
Post a Comment