2013 Toyota Sienna heater fix. Now it blows HOT AIR AGAIN!!!

[@toualor1042]

Replacing that servo motor brought heat to the front driver side only correct? And Does the passenger servo motor side only control the passenger front side? What servo motor controls the rear?

[@flaberdoopin]

That is correct and the rear servos are in the very back of the van behind the plastic screen on the passenger side behind the back seat. Pop that cover off and you will see the servo and the fan

[@tele123456]

Hi, why did not you just replace the heater instead of flushing it; looks the heat costs about 70 dollars

[@flaberdoopin]

The heater core is not expensive but requires a lot of work to take the whole dash apart to get it out of the vehicle, and running new lines thru the firewall can be a pain sometimes. This was a much easier procedure and if the flush didn’t work, then replacing the core would have been the next step.