Help! Ford Explorer A/C Only Blowing Out Defrosters
Hi - I have a 2006 Ford Explorer Eddie Bauer Gen lV with rear aux heating and cooling. The front A/C is only blowing out the defrosters. Rear AC works fine. Temperature control is working, I have both hot and cold air with no thumping or clicking noise when I turn the control knob. So it doesn't sound like the blend door. I checked the blend door actuator on the lower driver side and its working. I checked the vacuum lines behind the vent control knob and behind the glove box and all connections seem ok. I can reach through the vent and hold the door open with my hand that blocks the front vents but it's not opening or staying open on it's own. I also checked the arm that attaches to that flap from the vacuum reservoir and it's intact. Not sure where else to look. Seems like a vacuum issue. I'd appreciate any suggestions. Thanks.