SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2006SUBURBAN C2500, 6.0 UREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1605 (ENGINE CONTROLS AND FUEL - 3.5L - INTRODUCTION)REPAIR INSTRUCTIONSSPARK PLUG WIRE REPLACEMENTREMOVAL PROCEDURE
2006 Chevrolet Suburban C2500, 6.0 U

Removal Procedure

2006 Chevrolet Suburban C2500, 6.0 USECTION Removal Procedure
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Twist the spark plug boot one-half turn in order to release the boot. Pull on the spark plug boot only. Do not pull on the spark plug wire or the wire could be damaged.
  1. Remove the air cleaner outlet duct, if required. Refer to Air Cleaner Outlet Duct Replacement .
    2. Fig 1: View Of Left Side Spark Plug Wires
    GM1608802Courtesy of GENERAL MOTORS CORP.
  2. Disconnect the left side spark plug wires from the spark plugs.
  3. Disconnect the left side spark plug wires from the ignition coil.
  4. If replacing only one plug wire, open the retaining clips and remove the spark plug wire.
  5. Remove the left side spark plug wire clips from the intake manifold bracket and heater inlet and outlet pipe.
  6. Remove the spark plug wire assembly.
    7. Fig 2: Locating Right Side Spark Plug Wires & Ignition Coil
    GM1608803Courtesy of GENERAL MOTORS CORP.
  7. Disconnect the right side spark plug wires from the right side spark plugs.
  8. Disconnect the left side spark plug wires from the ignition coil.
  9. If replacing only one plug wire, open the retaining clips and remove the spark plug wire.
  10. Remove the right side spark plug wire clip from the ignition coil bracket.
  11. Remove the spark plug wire assembly.
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.