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Fact or Fiction: Cycling Grid Heaters Improves Cold Starting Capabilities

This is a fact. In extremely cold weather – below 0 degrees Fahrenheit (-18 degrees Celsius) – it may be beneficial to cycle the manifold grid heaters twice before attempting to start the engine. The sequence you should follow is:

  • Key on.
  • Let the “Wait to Start” lamp turn off.
  • Turn the ignition off for 5 seconds.
  • Key back on.
  • Let the “Wait to Start” lamp turn off.
  • Start the engine.

Please remember that excessive cycling of the grid heaters will result in damage to the heater elements, and will reduce your battery voltage.

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