Yukon/Denali XL 1500 2WD V8-6.0L VIN U (2005)
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10. Remove the ignition coil bracket.
11. Remove the positive crankcase ventilation (PCV) hose.
12. Loosen the valve rocker arm cover bolts.
13. Remove the valve rocker arm cover.
14. Remove and discard the old gasket (1).