Yukon XL 4WD V8-6.0L (2007)
11. Reposition the outlet hose out of the way.
12. Reposition the heater inlet hose clamp (1) at the water pump.
13. Remove the heater inlet hose (2) from the water pump.
14. Reposition the inlet hose out of the way.
15. Remove the exhaust manifold bolts and exhaust manifold.
16. Remove and discard the exhaust manifold gasket.
17. Remove the exhaust seal from the exhaust manifold.
Installation Procedure
Important:
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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.
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The cylinder head exhaust manifold bolt hole threads must be clean and free of debris or threadlocking material.
