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Home >> Pontiac >> 2006 >> G6 GTP, 2D Convertible >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 3.9L - Introduction (2 Of 2) >> Repair Instructions >> Spark Plug Replacement >> Installation Procedure
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Installation Procedure

NOTE: It is important to check the gap of all new and reconditioned spark plugs before installation. Pre-set gaps may have changed during handling. Use a round wire feeler gauge to be sure of an accurate check, particularly on used plugs. Installing plugs with the wrong gap can cause poor engine performance and may even damage the engine.
    Fig 1: Removing/Installing Spark Plugs
    GM1587748Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  1. Gap the NEW spark plugs. Refer to Ignition System Specifications .
  2. Install the spark plugs.

    Tighten:  Tighten the plugs to 20 N.m (15 lb ft).

  3. Fig 2: View Of Spark Plug Wire Assembly
    GM1582938Courtesy of GENERAL MOTORS CORP.
  4. Install the right side spark plug wires to the spark plugs, if required.
  5. Fig 3: View Of Left Spark Plug/Coil Harness
    GM1582091Courtesy of GENERAL MOTORS CORP.
  6. Install the left side spark plug wires to the spark plugs, if required.
  7. Install the intake manifold cover, if required. Refer to Intake Manifold Cover Replacement .
  8. Install the air cleaner outlet duct, if required. Refer to Air Cleaner Outlet Duct Replacement .