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Home >> Chevrolet >> 2013 >> Sonic RS, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls/Fuel - 1.4L (LUV) - Repair Instructions >> Repair Instructions >> Spark Plug Inspection >> Spark Plug Usage

Spark Plug Usage

  1. Ensure that the correct spark plug is installed. An incorrect spark plug causes driveability conditions.
  2. Ensure that the spark plug has the correct heat range. An incorrect heat range causes the following conditions:
    • Spark plug fouling-Colder plug
    • Pre-ignition causing spark plug and/or engine damage-Hotter plug