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

Ignition System

  1. Inspect for proper Ignition Control (IC) circuit connections at each ignition module assembly.
  2. Test for proper ignition voltage output using the J 26792 Spark Tester.
  3. Inspect the ignition coils for cracks, or damage.
  4. Inspect for a missing or damaged ignition module assembly grounding spring.
  5. Inspect the spark plugs.
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