2010 Hyundai Sonata Car overheating when on open highway. Temp goes to cold when heat is on. Thermostat, radiator, controller, fan motor, cooling sensor, water pump has all been replaced 2010 gls 4 cylinder. What else can it be?
Car overheating when on open highway. Temp goes to cold when heat is on. Thermostat, radiator, controller, fan motor, cooling sensor, water pump has all been replaced 2010 gls 4 cylinder. What else can it be?
What is your question?
Heat, AC work fine. Car temp is okay when idling.
How long has your 2010 Hyundai Sonata had this problem?
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