An abnormal noise may be noted from the HVAC blower motor. This can be caused by debris from the glove box entering the blower motor via the recirculation door. A screen is now available which can be installed over the recirculation air inlet to keep debris out of the blower motor.Google+
Car Problem Reports
Jeep Patriot Abnormal Noise From HVAC Blower Motor
Jeep Patriot Problem
Model Year Affected: 2007
Visitor, 2007 Jeep Patriot, 120,000 mi
no air circulation at lower fan speeds and loud hum when fan is on high and limited air blows. Going to remove glove box and hopefully I will find debris and remove to correct the problem, otherwise $$$$$$ again for this piece of junk Patriot !