Avalanche 4WD V8-5.3L (2011)
10. Remove the heater hose bracket nut and bracket
11. Remove the spark plug wires (724) from the ignition coils.
*
Twist each plug wire 1/2 turn.
*
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).
