Yes, car has dual temp controls. Engine dash gauge is under normal.
Yes, both sides blow cold air. I would assume the Buick dealership would check for trouble codes. But don't know for sure. It was brought back in 5 times for no heat. Also, forgot to mention, the thermostat has been replaced 3 times.
Yes, coolant level in reservoir is ok.
Can you give me an idea how expensive this is to have fixed?
Is it mandatory to replace both actuators to work? Don't have the money and was hoping if I just replaced the drivers side it would work. Is that true?