cokozak

I have a 2007 is350 with 94600miles on it.
Recently my heater has been acting up - taken it to about 4 different shops with different diagnosiss.

Symptoms:
NO heat - recently solved this problem somewhat with changing thermostat*
Driver side occasionally blows hott from defrost/vents after driving for a while. Usually cold!
Feet always blows cold/rear always warm
Never warms up on idle
Temperature gauge never exceeds normal point - no coolant leak. Did a flush and seemed to worsen problems.

Interior foggy windows - wont defrost
Loud noise from glove box when heater on (assuming blower motor). Air seems to take a while to flow when turned to high position.

NO engine lights on - no codes
Changed all air filters & cabin filter

Any suggestions? Other than heater core?!

MikeFig82

iTrader: (13)

It sounds like one of the mix servos is not functioning correctly. As for the blower motor. Remove the glove box plastic insert. Like if you're changing the cabin air filter. While car is on, or ING to ON position. Cycle the recirculation button. Check to see if the door is getting jammed.

Did someone try to change the air filter with outside air door closed. Then force it open?