aerostar AC/heat

[darlene]

I have a 1994 Ford aerostar. I bought it used in the winter. The AC works,
but no matter where I put the selector switch, the air comes from the
defroster vents by the windsheild and the heater vents by the floor. It has
to be in the switch or there is a door in the ducting that directs the air
through one set of ducts or another. I am used to working on old GM trucks
and every time I think to try to figure out how to figure out How just to
get started I give up. I just need a starting point. The fan switch asembly
is in the middle of the dash and there doesn't seem to be any access. I
believe that un older Chevys the door that controls the airflow in the
ducting was controlled pnuematically.

The cruise control doesn't work and if I remember correctly it was
controlled by pnuematically as well. (on a Chevy). So I guess that the
relays that control both could be on the same fuse. I don't even know where
to find the fuse box.

I'm getting old and poor and the summer is coming on strong. I live in ABQ,
NM and it gets really hot here. I don't drive very much, but I do drive and
I would like very much to have my AC.

Thank you,

james

[darlene]

I'm astounded that nobody Knows the answer to this question. I got a haynes
"Ford Aerostar minivans. 1986 thru 1996" Automotive repair manual, that had
no related information

Post by darlene
I have a 1994 Ford aerostar. I bought it used in the winter. The AC works,
but no matter where I put the selector switch, the air comes from the
defroster vents by the windsheild and the heater vents by the floor. It
has to be in the switch or there is a door in the ducting that directs the
air through one set of ducts or another. I am used to working on old GM
trucks and every time I think to try to figure out how to figure out How
just to get started I give up. I just need a starting point. The fan
switch asembly is in the middle of the dash and there doesn't seem to be
any access. I believe that un older Chevys the door that controls the
airflow in the ducting was controlled pnuematically.
The cruise control doesn't work and if I remember correctly it was
controlled by pnuematically as well. (on a Chevy). So I guess that the
relays that control both could be on the same fuse. I don't even know
where to find the fuse box.
I'm getting old and poor and the summer is coming on strong. I live in
ABQ, NM and it gets really hot here. I don't drive very much, but I do
drive and I would like very much to have my AC.
Thank you,
james

[pipedown]

I replied to your post in alt.autos.ford a couple weeks ago. You need to
check all the places you posted to find the answer.


Copied here:
I looked at the shop manual and the temp knob is cable operated but the
selector switch is pneumatic. Good news is that the rear control looks
interchangeable but the bad news is it looks like you need to remove the
whole dash to get behind it not just a bezel. It starts with the panel
below the steering wheel and the support behind it then there are several
bolts and a few more nuts to undo before the whole instrument panel comes
out. Looks like a big job. Maybe you can reach inside from behind the
glove box or by removing the ash tray.

Post by darlene
I'm astounded that nobody Knows the answer to this question. I got a
haynes "Ford Aerostar minivans. 1986 thru 1996" Automotive repair manual,
that had no related information

Post by darlene
I have a 1994 Ford aerostar. I bought it used in the winter. The AC
works, but no matter where I put the selector switch, the air comes from
the defroster vents by the windsheild and the heater vents by the floor.
It has to be in the switch or there is a door in the ducting that directs
the air through one set of ducts or another. I am used to working on old
GM trucks and every time I think to try to figure out how to figure out
How just to get started I give up. I just need a starting point. The fan
switch asembly is in the middle of the dash and there doesn't seem to be
any access. I believe that un older Chevys the door that controls the
airflow in the ducting was controlled pnuematically.
The cruise control doesn't work and if I remember correctly it was
controlled by pnuematically as well. (on a Chevy). So I guess that the
relays that control both could be on the same fuse. I don't even know
where to find the fuse box.
I'm getting old and poor and the summer is coming on strong. I live in
ABQ, NM and it gets really hot here. I don't drive very much, but I do
drive and I would like very much to have my AC.
Thank you,
james

[Big Al]

If you have a manual (Haynes) see if the cruise control is vacuum operated.
You could have a vacuum leak causing both problems. Air coming from the
defroster vents is a sure sign IF the vents are vacuum operated in an
Aerostar.

Al