1999 dodge neon overheats

I have a 1999 dodge neon. Freon was just added to my car, and now with the heat off or my air conditioning on, when I drive my car the temperature gauge goes up to high until I turn the heat on.    What could be the problem and is it something that I can fix myself.

1 thought on “1999 dodge neon overheats”

  1. the cooling system is low on coolant of your engine cooling fan is not coming on(check fuses first) the reason the engine temp goes down when you turn on the a/c or heat is because the blower motor cools across the heatercore.

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