Outside Air Vent Blowing Warm

[MileHghCity]

When I turn my dash controls to vent (outside air), the tempature of the air coming out the vents is about 10 to 15 degrees warmer than the outside air. I have the tempature control all the way on cold. The A/C still blows cold and gets down to 45 degrees. I'm assuming I have a door somewhere in the system not closing all the way. I'd like to bring in the cool morning air without running the A/C. Any suggestions on how to adjust/fix? 2001 F250 XLT SD Diesel.

[JK23112]

Not sure about your particular truck, but a lot of vehicles have the 'cold-air' vent intake located too close to the exhaust manifold -- which means that your vent air coming in from outside is really going to be much warmer than the ambient temperature.

One of Ford's better ideas, I suppose. LOL!