Air not blowing through the main front vents. - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


General GM Chat When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made. Chat about all things GM (and related cars). Off-topic stuff should be in the Lounge, and all Model specific mechanical problems should be posted in the proper forum.

Reply
 
 
 
Thread Tools Search this Thread
Old 04-08-2003, 03:45 PM   #1
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Mar 2003
Posts: 419
Thanks: 0
Thanked 0 Times in 0 Posts
95neongirl is on a distinguished road
Default Air not blowing through the main front vents.

Hey all when I have on th eAC it gets cool in the car but it won't blow throught the front vents when I have it on that setting!

Anyone know what could cause this?

thanks
95neongirl is offline   Reply With Quote
Old 04-08-2003, 03:49 PM   #2
Senior Member
Expert Gearhead
 
Join Date: Dec 2002
Location: Mississauga, Ontario
Posts: 20,892
Thanks: 0
Thanked 1 Time in 1 Post
Jim W is on a distinguished road
Default

Your blower motor may be clogged or needs to be replaced. Its easy to do, the blower motor on Bonnevilles are located on the firewall at the back of the engine compartment.

Are you getting all of the fan settings? ie low/med/high? There is a de-clog product on the market that can be used. Not sure of the name...someone else will chime in here I'm sure.

Good luck
Jim W is offline   Reply With Quote
Old 04-08-2003, 06:46 PM   #3
Senior Member
True Car Nut
 
Join Date: Sep 2002
Location: Chicago, IL
Posts: 2,409
Thanks: 0
Thanked 1 Time in 1 Post
acg_ssei is on a distinguished road
Default

Quote:
Originally Posted by 89BonnieSE89
Your blower motor may be clogged or needs to be replaced. Its easy to do, the blower motor on Bonnevilles are located on the firewall at the back of the engine compartment.
The clog wouldn't be in the blower motor; if it'* spinning at all, I would leave it alone. However, the A/C evaporator and/or the heater core can get clogged (especially if the evaporator has sprung a refrigerant leak and got the fins all wet with oil); you need to open up the evaporator case and get in there to clean out the goop.

What control panel do you have? If it'* the electronic one, is it indicating that it'* sending air to the dash vents but nothing is coming out?

If it'* _not_ the electronic one, are you getting air out of the _wrong_ outlets? That is, do you dial up VENT or A/C but get air out of the heater ducts (on the floor) or windshield defrosters instead? If so, you may have a vacuum leak, and the duct servo motors are not operating as a result.

P.*. What year and model are we talking about?
acg_ssei is offline   Reply With Quote
Old 04-13-2003, 12:26 AM   #4
Member
Posts like a V-Tak
 
Join Date: Mar 2003
Location: Middle of Nowhere (Iowa)
Posts: 50
Thanks: 0
Thanked 0 Times in 0 Posts
susanrandom is on a distinguished road
Default

i have that situation as well. i noticed that it will only blow bi-level when it feels like it or when i am running in the econ mode.
susanrandom is offline   Reply With Quote
Old 06-08-2003, 01:21 PM   #5
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Mar 2003
Posts: 419
Thanks: 0
Thanked 0 Times in 0 Posts
95neongirl is on a distinguished road
Default

just to update this problem...the air conditioner/heater only works in the floor and winshield positions..weven wehn i have it on the center vents!

Thanks
95neongirl is offline   Reply With Quote
Old 06-09-2003, 02:34 AM   #6
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Which climate control do you have? The manual one with the *****, or the automatic with the display?
willwren is offline   Reply With Quote
Old 06-09-2003, 04:43 AM   #7
Senior Member
Certified Car Nut
 
Join Date: Mar 2003
Posts: 12,432
Thanks: 0
Thanked 0 Times in 0 Posts
J Wikoff is on a distinguished road
Default

I've had this happen. Pop the hood. On the fire wall there is a black tank. It is for the vacuum supply. If you are standing in front of the car looking at the engine, the black tank (about half a gallon or so) is to the left of the brake master cylinder. On the bottom of this tank, there should be two small vacuum lines connected to two posts coming from it. If there is a post open, there should be a vacuum line hanging somewhere very close. Hook it back up. I've knocked mine off changing the spark plugs, and I only got air at my feet and at the windshield. It also happened in my fiance'* 93 SE. I have auto climate and she has standard, and it is the same vac line that runs the flaps in the air system.
J Wikoff is offline   Reply With Quote
Old 06-09-2003, 12:23 PM   #8
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

If it'* not there, there'* a vacuum manifold inside the car kindof in between where the stereo and glove box are. You can access it through the front passenger hush panel (above the footwell). Look for a disconnected vacuum line there, also. You're looking for a little hockey-puck type device with several lines going in and out of it.
willwren is offline   Reply With Quote
Old 06-09-2003, 02:08 PM   #9
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Mar 2003
Posts: 419
Thanks: 0
Thanked 0 Times in 0 Posts
95neongirl is on a distinguished road
Default

Quote:
Originally Posted by willwren
Which climate control do you have? The manual one with the *****, or the automatic with the display?
I have the manual one with *****!
95neongirl is offline   Reply With Quote
Old 06-09-2003, 02:11 PM   #10
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Mar 2003
Posts: 419
Thanks: 0
Thanked 0 Times in 0 Posts
95neongirl is on a distinguished road
Default

Quote:
Originally Posted by willwren
If it'* not there, there'* a vacuum manifold inside the car kindof in between where the stereo and glove box are. You can access it through the front passenger hush panel (above the footwell). Look for a disconnected vacuum line there, also. You're looking for a little hockey-puck type device with several lines going in and out of it.
I read this somewhere else too and i took some stuff apart yesterday under the dash (under the glove box and under the stereo)..I did not see anything but wires..no hoses am I looking in the right places?

will i have to take stuff apart to find it? I think i was to the plastic container that holds the heater core....thanks
95neongirl is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Air not blowing from dash vents Big Oldsmobile 4 03-01-2015 06:43 PM
Are your vents not blowing much air? - The fix. Sorta. Hans General GM Chat 17 09-08-2006 04:07 AM
No Air through VENTS Tragz 1992-1999 7 06-01-2006 01:09 AM
Hot engine air blowing in through bottom vents Boreas 1992-1999 8 05-07-2006 04:36 AM
LOW AIR COMES THROUGH THE VENTS vze3r85p 1992-1999 3 10-15-2002 06:14 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 09:53 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.