vent and blower issue

scott91gtz · Post by **scott91gtz** » Mon Nov 26, 2007 4:20 pm

i have a 91 with a quad 4. the problem im having is that my blower motor seems to be blowing hard, but barely anything is coming out of the vents. all of the speeds work, and it DOES change where its blowing when i change it from vent to defrost or whatever, just not very much seems to come out. it seems to me that there would be something keeping the doors from opening all the way but i have no idea of where to look.
thanks for your help
scott

Money pit Beretta · Post by **Money pit Beretta** » Mon Nov 26, 2007 9:19 pm

I don't know much about this. I had to look it up in the Chilton's manual. All that I got from it is that you would have to take out everything to check to see what's wrong. There is a temp,heater/defrost and something called a mode valve, they are all together. Other than that stuff all I can come up with is that leaves or pine needles(or dash padding) has somehow made it's way into the ducts. Sorry that I'm not much help. Oh yea, there are vac actuators for the mode and heat/defrost. Also it does say to disable the airbag on 91-92 with A/C.

Asylum · Post by **Asylum** » Tue Nov 27, 2007 10:17 am

Take the blower motor out (it's on the firewall, passenger side) and you'll be amazed at how much crap is likely in the housing.

Reach way in and clean it all out.

Luckymc420 · Post by **Luckymc420** » Tue Nov 27, 2007 4:09 pm

(asylummotorsports @ Nov. 27 2007,09:17)QUOTETake the blower motor out (it's on the firewall, passenger side) and you'll be amazed at how much crap is likely in the housing.

Reach way in and clean it all out.
Yup Yup very true!!!

scott91gtz · Post by **scott91gtz** » Tue Nov 27, 2007 5:32 pm

ya i already pulled the blower motor and its pretty clean down there. im just wondering if anyone knows exactly where the doors are... i really dont wanna pull everything apart if i dont have to.

Money pit Beretta · Post by **Money pit Beretta** » Tue Nov 27, 2007 7:18 pm

The valves seem to be on top of the heater core(there is a lower cover for the core and a upper for the valves). If you can get to the actuators in the back I would try to test them or check the lines. I guess you could check to see if they hold vacuum. Other than that I'd take it to a shop. The actuators are on the drivers side they open the valves. Update: I looked at my car without taking off anything and saw an actuator on the passenger side and nothing on the drivers side(my car is a 90 though). It was up by the glovebox.

Jeff P · Post by **Jeff P** » Fri Nov 30, 2007 6:17 am

Most of the time when you get hardly any air through your vents it is caused by a buildup of junk on the evaporator core (which is above the heater core). You can get to it by removing the blower motor and housing in the engine bay, or by removing the heater core inside the vehicle, then the evaporator core. If your A/C is charged, you'll have to go with the first option. I wouldn't even mess with all the vacuum tubes, valves, motors, etc. if you don't have to.

scott91gtz · Post by **scott91gtz** » Fri Dec 07, 2007 4:34 pm

ya you were right jeff. i took off the blowermotor and housing today, and the evaporator core was just loaded up with crap. so i cleaned it up the best i could, and now it blows friekin hard. finally i got heat!! it was startin to get to me cuz its been below 0 degrees celcius here for a bit now. thanks a lot for your help. too bad it took me so long to finally get a chance to pull it apart tho.
scott

Jeff P · Post by **Jeff P** » Thu Dec 13, 2007 1:16 am

Heh awesome Scott, glad it's fixed! Freezing blows

Connect with your social network account