A/C BLEND DOOR

Murfthesurf

Murfthesurf

Not-quite-so-new-guy
Aug 19, 2017
11
6
3
#1
HI guy,s it,s mike.I cannot get my ac to blow out of the vents. Air only comes out of the defrost vents and floor vents.last year i took off my dashboard and my blend door was vacuum shut.I had to really pull hard to get it open.Now it has happend again.i checked the vacuum lines,the round dial switch on the control.i hoping i don't have to pull the dash again.if so i will replace the blend door.Thank,s guy,s Mike
 
R

rwloos45

n00b
Jun 7, 2014
1
0
1
#2
I'm having same issue [85 Cutlass Supreme Brougham]. Mechanic says the vacuum controller on mine has a weak vacuum and can't open blend door until controller has built up enough vac to open it. Ordering new controller now.
 
Longroof79

Longroof79

Geezer
Oct 14, 2008
9,837
5,533
113
Gainesville, Fl
#3
Hey guys, what happened to posting an introduction to the site? o_O
You all seem to jump on when you need a problem solved and need answers.
 
Murfthesurf

Murfthesurf

Not-quite-so-new-guy
Aug 19, 2017
11
6
3
#4
Hey guys, what happened to posting an introduction to the site? o_O
You all seem to jump on when you need a problem solved and need answers.
Hi,Longroof79, i hope your doing well this Saturday june 23. I'm M it's been awhile since I've been on. Sorry for the none introduction my bad.Sorry so silly of me.i hope you have a wonderful rest of your day.
img_0524-jpg.90983
 
Murfthesurf

Murfthesurf

Not-quite-so-new-guy
Aug 19, 2017
11
6
3
#5
I'm having same issue [85 Cutlass Supreme Brougham]. Mechanic says the vacuum controller on mine has a weak vacuum and can't open blend door until controller has built up enough vac to open it. Ordering new controller now.
Hi I'm Mike thanks for the info,im going to try that before I pull my dash off.Here,sa couple of pic of my 1987 regal
20160904_152614-jpg.90984
20160904_152614-jpg.90985
20160831_181931-jpg.90986
 
Murfthesurf

Murfthesurf

Not-quite-so-new-guy
Aug 19, 2017
11
6
3
#6
20160831_181755-jpg.90987
img_0524-jpg.90988
 
UNGN

UNGN

Comic Book Super Hero
Sep 6, 2016
2,595
1,975
113
Southlake, TX
#8
I'm having same issue [85 Cutlass Supreme Brougham]. Mechanic says the vacuum controller on mine has a weak vacuum and can't open blend door until controller has built up enough vac to open it. Ordering new controller now.
The rotary vacuum controllers all fail the same way: the plastic snap rivet that holds the two haves together breaks one or both tabs:

20180616_100654-jpg.90990


An 1/2 inch long 8-32 screw and nylock nut can replace the rivet.
 
Longroof79

Longroof79

Geezer
Oct 14, 2008
9,837
5,533
113
Gainesville, Fl
#9
Hi,Longroof79, i hope your doing well this Saturday june 23. I'm M it's been awhile since I've been on. Sorry for the none introduction my bad.Sorry so silly of me.i hope you have a wonderful rest of your day. View attachment 90983
Welcome aboard, Mike!
Thanks for the introduction. I didn't mean to come off like a storm trooper, just that we get a lot of first time posters that ask for info and are never to be heard from again.
Nice Regal. by the way. thanks for sharing the pics. ..and a good day to you sir.
 
Longroof79

Longroof79

Geezer
Oct 14, 2008
9,837
5,533
113
Gainesville, Fl
#10
The rotary vacuum controllers all fail the same way: the plastic snap rivet that holds the two haves together breaks one or both tabs:

View attachment 90990

An 1/2 inch long 8-32 screw and nylock nut can replace the rivet.
That's a great tip. I guess we don't need to go nuts looking for a replacement if it can be remedied that easily. Thanks again for that.
 
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