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Home >> Jeep >> 2019 >> Wrangler Unlimited Moab >> Repair and Diagnosis >> Engine Performance >> Ignition System - 3.6L >> Spark Plug >> Removal And Installation >> Right >> Installation
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Removal And Installation: Right: Installation

CAUTION:

Special care should be taken when installing spark plugs into the cylinder head spark plug wells. Be sure the plugs do not drop into the plug wells as electrodes can be damaged.

GC0183199Courtesy of CHRYSLER GROUP, LLC
  1. Start the spark plug into the cylinder head (1) by hand to avoid cross threading.
    CAUTION:

    Spark plug torque is critical and must not exceed the specified value. Overtightening stretches the spark plug shell reducing its heat transfer capability resulting in possible catastrophic engine failure.

  2. Tighten the spark plugs to the proper specification. Refer to TORQUE SPECIFICATIONS  .
    GC0182110Courtesy of CHRYSLER GROUP, LLC
  3. Install the ignition coil(s). Refer to COIL, IGNITION, REMOVAL AND INSTALLATION .
  4. Connect the negative battery cable(s). Refer to STANDARD PROCEDURE .