Car air going where it pleases

[trainguy1989]

In my 91 MTX I have a problem getting anything to come out of my vents. I will push the **** all the way to the top for max blower and I can hear the blower speed up(gets louder). If for example I have my EATC set to vent, I then get air out of my vents but they also come out of the defrost and floor. After a while all the air will stop coming out of anything but can feel air blowing around under the glove box. Could this be the blower control module? Also I notice that the BDA only works if the blower is working correctly. I ran the self test on the EATC and it gave me an 888(Everything works fine). Swapped in a different EATC same results.

Thanks for your help guys!

 

[rubydist]

it could be junk (leaves, etc.) in the blower housing that are plugging up the discharge.

 

[trainguy1989]

it could be junk (leaves, etc.) in the blower housing that are plugging up the discharge.

You mean underneath the black panel under the windshield? I am not familiar with blower housing or discharge. I am really a noob when it comes to this stuff.

 

[trainguy1989]

:bump:

 

[rubydist]

under the dash, near the blower motor is where I mean.

does it make any rattling/scraping noises when the fan blows?

 

[trainguy1989]

under the dash, near the blower motor is where I mean.

does it make any rattling/scraping noises when the fan blows?

No it masks no rattling/scraping noises when the fan blows.

 

[mrecoolgar]

All air flow travels thru the evap core.
If the evap core has blockage, the airflow will then come out the path(s) of least resistance.

 

[trainguy1989]

All air flow travels thru the evap core.
If the evap core has blockage, the airflow will then come out the path(s) of least resistance.

Is it possible to look at the evap core without pulling the dash?

 

[mrecoolgar]

If you remove the fan motor I believe you can see it.