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Home >> Cadillac >> 2003 >> Seville SLS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Troubleshooting - No Codes >> Symptoms >> Detonation/Spark Knock >> Additional

Detonation/Spark Knock: Additional

  1. Inspect the Torque Converter Clutch (TCC) system for proper operation. See appropriate article in TRANSMISSIONS.
  2. If the scan tool readings are normal, and there are no engine mechanical faults, fill the fuel tank with a premium gasoline that has a minimum octane reading of 92 and re-evaluate the vehicle.
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