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Home >> GMC >> 2009 >> Envoy 4.2 S, 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 4.2L - Introduction >> Repair Instructions >> Ignition Coil Replacement >> Installation Procedure

Installation Procedure

    Fig 1: View Of Ignition Coils
    GM725545Courtesy of GENERAL MOTORS CORP.
    NOTE: Make sure that the ignition coil seals are properly seated to the valve cover.
  1. Install the ignition coil (1).
  2. Fig 2: Locating Ignition Coil Components
    GM725541Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Fastener Caution .
  3. Install the ignition coil retaining bolts (2) and tighten to 10 N.m (89 lb in).
  4. Replace the ignition coil connectors (1).
  5. Install the air cleaner outlet resonator. Refer to Air Cleaner Outlet Resonator Replacement .