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Home >> Chevrolet >> 2018 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 24 (Engine Controls And Fuel - 1.4L (LV7) - Repair Instructions) >> Repair Instructions >> Spark Plug Inspection >> Spark Plug Usage

Spark Plug Usage

WARNING: This page is about a different car, the 2017 Chevrolet Spark. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ensure that the correct spark plug is installed. An incorrect spark plug causes driveability conditions. Refer to Ignition System Specifications (LV7)Ignition System Specifications (L5Q) for the correct spark plug.
  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
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