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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 894 (Engine Controls And Fuel - 4.3L - Introduction (2 Of 2)) >> Repair Instructions >> Spark Plug Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Spark Plugs
    GM1876950Courtesy 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 spark plug into the cylinder head by hand. (left side shown, right similar).
    4. NOTE: Refer to Fastener Notice .
  4. Tighten the spark plug.

    Tighten:  Tighten the plug to 15 N.m (11 lb ft).

    5. Fig 2: View Of Spark Plug Wire Separators & Boots
    GM1876924Courtesy of GENERAL MOTORS CORP.
  5. If reinstalling the old spark plug wires, apply dielectric grease GM PN 12345579 (Canadian PN 10953481), or equivalent to the inside the spark plug wire boots.
  6. Install the appropriate spark plug wire boot(s) (2) to the spark plug. (left side shown, right similar).
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