Only blows heat .out vents . Replaced blend door motor . Control head

When u say hvac controller do u mean the AC and heat control .I do know that there is vaccum lines going to the control but I didn't think the vaccum had anything to do anything with the blend door actuator . I've got the dash apart . Just asking . I'll take,all advice you can give . And mine is knob operated

READ what I just posted again!!!! .. Find the vacuum SOURCE tube.. Using the tester apply vacuum to different tubes and see if mode changes from vents to another position.. I bet it will..

I did replace the control with a used one . Mayb I got abother bad one . That's the problem w getting used parts . Can u tell me exactly how you tested the vaccum

Just did that! .. Read again. .. Used part is probably defective as well.

Ok thanks for the help buddy do u know the cost of a control.

No I don't remember $.. can look it up on Google or any parts store website.. Call parts store tomorrow. .. Test FIRST! .. It's simple and bulletproof!

Please bare w me . Am I checking for bad vaccum lines ,for leaking vaccum lines . I do know I have vaccum to my control because I could here it when I unplugged them . I'm just try ing to understand how I am going to check for proper vaccum . I do have a mighty vac. Please don't get aggrivated w me this car has drove me nuts buddy .

Simply apply vacuum to DIFFERENT vacuum tubes until you get it to change from vents to another position... IF it does change .. then you have your answer! .. I prefer using the made up test tool I mentioned. .. Piece of small vacuum hose with two 'straight' plastic vacuum hose connectors. Connect one end to vacuum SOURCS TUBE.. The other to different tube ports until it changes.

Ok thanks for baring w me buddy . I'll get to it tomorrow

Read back over this entire page again.. Good luck and next time I come to the beach I may need some help, never know, if so... I'll look U up! .. Let others know what you find out here by posting results.

Ok marvin chestnuts garage . In the yellow pages 24 hr. Towing . If you need me call me tell me you helped out w the crown vic .

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Hey I think I posted my question wrong . It's not just stuck on my vents my problem is the blend door for my heat and air. And the vaccum does not control that door . It's electronic only . The control is good and actuator is good what else could it be . I do see where the vaccum deals w the vent defrost and floor control .

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Hey buddy . I figured it out and your not going to believe it . The actuator I bought from advance auto parts was the wrong one even though I told them manual knob not electric push button system . They sent me one for the electric ac system instead and they are identical . Plugss in and all . This is resolved after advance cost me 2 days . We all make mistakes . Thought u would like to know my out come