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Spark Plugs: Installation

CAUTION: Be sure plug threads smoothly into cylinder head and is fully seated. Use a thread chaser if necessary to clean threads in cylinder head. Cross-threading or failing to fully seat spark plug can cause overheating of plug, exhaust blow-by, or thread damage. Follow the recommended torque specifications carefully. Over or under-tightening can also cause severe damage to engine or spark plug.
  1. Gap the spark plugs to specification. See SPARK PLUGS under IGNITION SYSTEMS in SERVICE & ADJUSTMENT SPECIFICATIONS - 3.4L AZTEK & RENDEZVOUS article. Install the spark plugs. Tighten the spark plugs to specification. See TORQUE SPECIFICATIONS  .
  2. Install the spark plug wires to the spark plugs. Return the engine to the proper position. Remove the engine tilter strap from the engine. Swing the engine mount struts in position. Install the engine mount strut bolts and tighten bolts to specification.
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