It appears that my passenger side air vents are blowing warmer that the drivers side. Holding my hands up to the vents, you can definately feel a noticable difference between the two banks. Does anyone have any suggestions as to what the problem may be. Any help would be greatly appreciated.

 

I have the same problem. Hope someone here knows what this could be. I changed my heater valve with no difference. This could be your problem. A heater valve sticking. Unfortunetly it didn't cure my problem and that heater valve isn't cheap.

 

I had exactly the same problem, turned out to be the condenser, SE picked up the tab, hopefully you are still covered.

 

I would say either the temp sensor or a vent door problem, more so the latter but im not a tech sorry to ehar that though, I hate getting hot!

 

Too many variables without seeing the car. All of the above comments are probable. Just impossible to tell without seeing car.