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Home >> Cadillac >> 2003 >> Seville SLS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Troubleshooting - No Codes >> Symptoms >> Engine Backfires >> Ignition System

Ignition System

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  1. Inspect for proper routing of the Ignition Control (IC) circuits in each ignition module assembly connector.
  2. Inspect the ignition coils for signs of carbon tracking or damage.
  3. Inspect for proper spark plug boot alignment.
  4. Inspect the spark plugs for proper heat range and reach.
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