Bonneville V8-4.6L VIN Y (2004)
threads in the cylinder head. Cross-threading or failing to fully seat the spark plug can cause overheating of the plug, exhaust blow-by, or thread
damage.
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Refer to Fastener Notice in Service Precautions.
Tighten the spark plugs between 17-23 N.m (13-17 lb ft).
3. Install the spark plug boots to the ignition coil assembly.
4. Refer to Ignition Coil(s) Replacement - Bank 2 or Ignition Coil(s) Replacement - Bank 1.