I plugged up the yellow hose as the FAQ suggests. That was great info.
Now everything works fine as long as I don't have the recirculation on.
If the recirc is on then the problem returns, no more air through the vents
when accelarating. This would be ok if I didn't live in Dallas, but...

Any suggestions??

Thanks in advance.

My 95 965 also has this symptom when the recirc is on. Do this test: with the recirculation on and the controls set to max fan speed and dash vents, accelerate until the air no longer flows from the vents and then put your hand down under the dash to see if air is flowing from the floor vent. If this is the case, then the recicrulation vacuum motor is likely leaking. Mine makes a hissing sound. This motor is located on the passenger side below the gove box next to the firewall. It looks fairly simple to replace, although I have not done it yet. There is no need to cut through anything since the bolts that hold it in place are accessible. There is an orange hose leading to it. You can get a new motor from the Volvo dealer. I am getting a replacement motor from Brentwood Volvo (800-844-9502) for around $50.

Hope this helps.

-Steve

Thanks sLong. Mine also makes the hissing sound but only when the heater
is on and on recirc. No hissing with the A/C.
Before I plugged up the hose I did notice that when the air was not comming
out of the vent it was in fact comming out of the floor vents.
When do you plan to change your recirc pump??
Can you please post a reply here or send an email and let us know if changing
the recirc pump fixes the problem. If it's on the passenger side I assume I
only need to take the glove box and the knee bolster out to get to it?? no
cutting or duct tape needed!!!

I would realy appreciate your feedback.

Thanks in advance-

I replaced my recirc vacuum motor. It fixed the problem. You can see what you need to do, but getting to it is more difficult than it looks. It took me about 3 hours total. I'm no professional. If you have a bad back, it would be worth paying for someone else to do it.

Take off the knee bolster (no need to remove glove compartment)
Remove cover from recirc vent and remove the oval shaped piece of ductwork that it mounts to.
Prop the recirc door open.
You can now easily see the motor. It is secured by 2 10mm nuts.
Disconnect the motor from the door and remove the nuts.
The difficulty comes in getting the motor out.
I had to bend the metal piece on the end of it to clear the firewall.

To get the new motor in, I trimmed the mounting posts for the nuts (plastic). These break easily and are difficult to thread the nuts onto. You might wanto to file down the end to make it easier to thread the nuts on. You will see what I mean when you look at a new one. I also needed to bend the end of the new motor to get it in place. When you order the new motor, you might want to get a new metal clip for the recirc door mount (mine broke).

Good luck,
Steve

Hello,

Thanks for posting the response. I've been out of the country for the past
two weeks on business and I just saw your post.
I am glad that fix the problem. If it's not too much trouble can you please
post the part number for the part you changed(vaccum motor).
I will change mine out as soon as I get the part.

Thanks again-

The Volvo part number for the Recirc Vac motor is 9463040. Hope it goes smoothly.

-Steve

Slong Thank you, thank you, thank yooooooooooooou.

I have ice cold A/C driving around Dallas. I followed your instructions and all is well now. Although I am embarrased to say I got frustrated with the stupid
plastic posts and broke off both of them. I did have to bend the metal hook to get it in and then made it straight again once it was in. I then put a metal clip on the white plastic to make sure the metal hook doesn't come off. I figure
since there is no pressure on it and the white plastic points up then there is
very little chance of it comming off. Anyway if I had to do it again I would
file down the plastic posts way down before inserting. Also how the heck did you
get the round metal clip back on to the white plastic posts. No way I could do it with one hand. Oh well I did it last weekend and no problems so all is good.
Anyway I still have to keep the yellow hose on the main vaccum pod plugged to
keep the air from disapearing when accelarating, but now I can also engage the
recirc button and the system works flawlessly. All for about 60$ and a few hours
of work.

Thnaks again.

It may be a week or so before I get to it, but I will let you know. -Steve

Hey, before you order that motor, (if you haven't already), let me know the p/n. I have an extra one, new in the box, that I never got around to installing since my engine blew up a week later.

mcgyver@hkem.com

Mine is already on the way. I am not sure of the part number.

Change the vacuum motor(s?) There is a shortcut in the archives.

Thanks Mullah- for your help. I must've read that section of the FAQ 10 times
but I just can't convince myself to use a hack saw and duct tape to fix the
problem. Please don't get me wrong, I do appreciate the info. I am hoping
what sLong suggested with the recirc motor on the passenger side is the
actual problem!!