FixVault
Home › Chevrolet › 2011 › Chevy Express G1500, Van Cargo, 4.3 X › Repair and Diagnosis › Engine Performance › Engine Control Systems › Engine Controls And Fuel - 4.3L - Repair Instructions › Repair Instructions › Spark Plug Replacement › Installation Procedure

Installation Procedure

    Fig 1: Right Side Spark Plugs
    GM1950044Courtesy of GENERAL MOTORS CORP.
  1. Ensure that the spark plug washer is positioned correctly.
  2. Inspect the spark plug gap. Adjust the gap as needed. Refer to Engine Mechanical Specifications .
  3. Install the appropriate right side spark plug (1) into the cylinder head by hand.
    4. CAUTION:

    Refer to Fastener Caution .

  4. Tighten the spark plug to 15 N.m (11 lb ft).
    5. Fig 2: Left Side Spark Plugs
    GM1950043Courtesy of GENERAL MOTORS CORP.
  5. Install the appropriate left side spark plug (1) into the cylinder head by hand.
  6. Tighten the spark plug to 15 N.m (11 lb ft).
    7. Fig 3: Spark Plug Wire Boots And Plugs (Right Side)
    GM1950008Courtesy of GENERAL MOTORS CORP.
    CAUTION:

    If the boot to wire movement has occurred, the boot will give a false visual impression of being fully seated. Ensure that the boots have been properly assembled by pushing sideways on the installed boots. Failure to properly seat the terminal onto the spark plug will lead to wire core erosion and result in an engine misfire or crossfire condition, and possible internal damage to the engine.

  7. If reinstalling the old spark plug wires, apply dielectric grease GM PN 12345579 (Canadian PN 10953481), or equivalent to the inside of the spark plug wire boots.
  8. Install the appropriate right side spark plug wire boot(s) (1) to the spark plug(s).
    9. Fig 4: Spark Plug Wire Boots And Plugs (Left Side)
    GM1950007Courtesy of GENERAL MOTORS CORP.
  9. Install the appropriate left side spark plug wire boot(s) (2) to the spark plug(s).
  10. Install the engine cover, if required. Refer to Engine Cover Replacement .
About FixVault