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Our automotive experts have put together the following information about the P2679 diagnostic trouble code. We've provided the common symptoms that occur when this code is set along with the frequent repairs that address the issues related to the P2679 code.

OBD II Fault Code

  • OBD II P2679

    OBD-II Code Engine may overheat is defined as a Coolant Degassing Valve Control Circuit Low

    The Coolant Degassing Valve allows Coolant that has been vaporized to return to the pressurized overflow tank. If this Valve does not operate as requested by the engine computer (PCM), code P2679 will be stored.

    Engine may overheat Symptoms

    • Engine may overheat

    Common Problems That Trigger the P2679 Code

    • Coolant degassing valve failure
    • Engine coolant level is too low
    • Powertrain Control Module (PCM) failure
    • Wiring issue
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