Slow Cabin Heating in my 2012 Camry

hightech wrote: ↑ I have a 2012 Camry LE
As an aside, is it normal to have the air pressure lower when it is on heat vs. cool. For example, if I keep the fan speed to the middle and set the temp to the left (cold) I can feel a blast of air. If I turn the dial to the right (all the way to hot) the flow of air feels diminished. Both the cabin filter and air filter are new.

Rick007 wrote: ↑ If this is an automatic system, warm air is automatically directed to the floor , so that it will rise by convection and heat the whole cabin. No air is normally directed to the face vents, although a small amount is usually sent to the windshield defrost vents.

On the other hand, cooled air is normally sent 100% from the face vents to give maximum comfort to the passengers. Gravity will cause this cool air to fall to the floor level.

To test this, manually select the face vents (override the auto settings), and then try changing from heat to cooling.

hightech wrote: ↑ I have a 2012 Camry LE with 183000 KM and noticed that it seems to take 15 to 20 min before the heat from the vents is nice and hot. I have had the coolant completely replaced last year as well as the thermostat changed at the time. The level of coolant is also at the full line in the overflow tank.

As a test, I put this additive in the coolant overflow tank and not the radiator as the vehicle was warm and didn't want to get sprayed when I open the radiator cap: https://www.hyperlube.com/ca/product/qu ... directions. I just put this in yesterday and am not sure if it made a difference or not. Time will tell.

I had read somewhere that some people suggest to reverse flush the heater core and when I asked my mechanic that they didn't want to do it. Their reason is that the water will mess up the coolant mixture and the Toyota coolant is already at 55/45 mix

Just to be clear, when the heat from the vents is hot, the car gets very warm. When I put my fingers in the air vents, I can't keep them there for long as the heat feels like it is burning them.

As an aside, is it normal to have the air pressure lower when it is on heat vs. cool. For example, if I keep the fan speed to the middle and set the temp to the left (cold) I can feel a blast of air. If I turn the dial to the right (all the way to hot) the flow of air feels diminished. Both the cabin filter and air filter are new.

What would you suggest?

Thanks

hightech wrote: ↑ Thanks for the suggestion everyone.

The Thermostat was OEM Toyota as I did the coolant change and thermostat change at the dealership. I took a drive today and the car started to give me warm air from the vents in about 4 minutes which was not bad at all. Granted today was only -5 and perhaps that additive helped as well. After about 10 min the air temp was HOT and I had to turn the temp dial to the middle as I was boiling. I will check it out when I go for a drive next weekend and if it is cold that would be a good test.