hudson smith

Hello, I replaced the blend door on the drivers side, the air got a bit warmer but it isn't hot coming out of it. The A/C works, but the heating does not. I am going to top up my coolant to see if that does anything. Do you think it could be the heater blower resistor?

Thanks for reply, I do have a dual HVAC system, is this what need? Motorcraft® YH1886 - HVAC Heater Blend Door Actuator (carid.com)? Do you think the driver side will need replaced if its the side that is not working properly?

Hello, during the summer months when the A/C was required, the A/C in my car would only blow cold air out the passenger side, and not the driver side. However, about 50% of the time it would actually blow cold air on both sides, then the next day it would blow hot air on the driver's side and cold on the passenger side. This was not a huge issue because if it did malfunction then I would just roll down my window. However, it is beginning to become winter and now the heating is doing the same thing as my A/C. This is a bigger issue because I cannot defrost my windows in the mornings, and not comfortable to drive. I read a couple forums and they are saying it is the blend door actuator that needs replaced, or it is low on coolant. Just confusing that it works sometimes and sometimes it doesn't. Any help will be greatly appreciated on what I should do.