spark plugs on 2006 Cadillac CTS

how to replace spark plugs

Asked by for the 2006 Cadillac CTS
Remove plastic shield. Disconnect air inlet at throttle plates. Remove stud on driver-side of plates. Bend or remove bracket out of way. Loosen all (6) 13mm head bolts but do not remove. Unplug all elect. connectors @ coils. Remove hold down bolts on coil. Raise plenum on troublesome coils just enough too clear. Replace plugs and reverse proceedure.
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where do i start?