Sierra 2500 Denali 2WD V8-6.0L (2011)
10. Remove the heater hose bracket nut and bracket
11. Remove the spark plug wires (724) from the ignition coils.
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Twist each plug wire 1/2 turn.
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Pull only on the boot in order to remove the wire from the ignition coil.
12. Remove the ignition coil bracket studs (720).
13. Remove the ignition coil bracket (719).
