2001 Mercury Sable A/C ; HEATER WORKS BUT WON'T BLOW THROUG

2001 MERCURY SABLE
65,500 MILES • 6 CYL • FWD • AUTOMATIC
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LARRY663
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  • 1 POST
I had just bought the car and I was checking all the buttons on the automated A/C system when the A/c stated blowing through the defrosters. The A/C still works but I can't get it to blow through the Dash vents. I can get the heater to blow to the floor and the Defrosters but not the vents. What is the problem?
Jun 22, 2010 at 3:59 PM
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BMRFIXIT
  • CERTIFIED EXPERT
  • 19,053 POSTS
Vacuum is what control the door and selection switch
check for vacuum leak ,start under the hood
check by the brake booster vacuum hose looking for a small black hose that goes into the right side by the strut and into with the wiring harness through the firewall inside the car
Jun 23, 2010 at 6:48 AM