HeatFan= loud rumble, gets louder when placed on recirculate - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


2000-2005 Discuss your 2000-2005 Bonneville SE, SLE, and SSEi Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 01-14-2008, 10:17 AM   #1
Junior Member
Thread Starter
 
Join Date: Dec 2007
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
ganzman is on a distinguished road
Default HeatFan= loud rumble, gets louder when placed on recirculate

I have an 01 Bonne SE with the manual climate control. The air volume doesn't seem to be very high. The fan is fairly loud when placed on high, low tone rumble sound. When I place it on recirculate the low tone rumble sound doubles in intensity. As I already said the volume of air doesn't seem to be as good as other cars I have owened, but this is a different car...?? Anyone ran into this before? Any ideas? This seems exesively loud.
ganzman is offline   Reply With Quote
Old 01-14-2008, 10:43 AM   #2
Senior Member
Posts like a Northstar
 
Join Date: Sep 2005
Location: Dayton, OH
Posts: 600
Thanks: 0
Thanked 0 Times in 0 Posts
imidazol is on a distinguished road
Default Re: HeatFan= loud rumble, gets louder when placed on recircu

Quote:
Originally Posted by ganzman
I have an 01 Bonne SE with the manual climate control. The air volume doesn't seem to be very high. The fan is fairly loud when placed on high, low tone rumble sound. When I place it on recirculate the low tone rumble sound doubles in intensity. As I already said the volume of air doesn't seem to be as good as other cars I have owened, but this is a different car...?? Anyone ran into this before? Any ideas? This seems exesively loud.
The air noise in my 03 H body leSabre is higher than the earlier cars were. But I think you should look in the cabin air filter opening to see if your air filter is clogged, if you have one. And check with a flashlight looking at the squirrel cage fan that you can see when the air filter is out. The air filter is under a little snap down lid right in front of the passenger side of the windshield above the AC accumulator.
imidazol is offline   Reply With Quote
Old 01-14-2008, 11:07 AM   #3
Junior Member
Thread Starter
 
Join Date: Dec 2007
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
ganzman is on a distinguished road
Default Cabin filter

I found the cabin filter door and looked in there previously and there was NO filter installed... I guessed the previous owner pulled it out to get better air flow??? Any other ideas? Another thought I had was maybe the actuator that controled the direction of air but that seems to be working because when I push the buttons the air flow changes to the selected direction...???
ganzman is offline   Reply With Quote
Old 01-14-2008, 11:45 AM   #4
Senior Member
True Car Nut
 
Join Date: Jun 2003
Location: Purgatory
Posts: 6,313
Thanks: 0
Thanked 0 Times in 0 Posts
PontiacDad is on a distinguished road
Default

Does'nt sound like a door acuator issue.
No filter? Could you have gottn leaves or other debris into the air inlet chamber?
Try vacuming it out, will need a narrow attachment to get down into there.
PontiacDad is offline   Reply With Quote
Old 01-14-2008, 11:54 AM   #5
Senior Member
True Car Nut
 
Join Date: Jul 2004
Location: Grand Rapids, Mi
Posts: 5,656
Thanks: 0
Thanked 0 Times in 0 Posts
Archon is on a distinguished road
Default

I've found that the air flow to the foot area is pretty weak. Flow through the defrost or vents is better. The noise could be the motor itself, although some have found that foreign material can make its way into the fan area, creating extra noise.
Archon is offline   Reply With Quote
Old 01-14-2008, 12:27 PM   #6
Junior Member
Thread Starter
 
Join Date: Dec 2007
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
ganzman is on a distinguished road
Default Ok but why double the noise level when in recir

These all seem logical approaches. What I am not undersatanding is why the noise level would double (if not more than) when switched into Recirculate. What does Recirculate do? Close an outside vent? Why would that cause it to get so much louder. This is more noticeable than switching from AC to Max AC (which I think is closing an outside vent) on other cars I have owned.
ganzman is offline   Reply With Quote
Old 01-14-2008, 12:34 PM   #7
Senior Member
True Car Nut
 
Join Date: Jun 2003
Location: Purgatory
Posts: 6,313
Thanks: 0
Thanked 0 Times in 0 Posts
PontiacDad is on a distinguished road
Default

Recirc is louder on my car too and yes it closes the fresh air intake and opens the cabin intake.
PontiacDad is offline   Reply With Quote
Old 01-14-2008, 12:39 PM   #8
Junior Member
Thread Starter
 
Join Date: Dec 2007
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
ganzman is on a distinguished road
Default

It must just be that the noise is not being allowed to escape from the vent compartment into the engine compartment then...?????
ganzman is offline   Reply With Quote
Old 01-15-2008, 07:59 AM   #9
jdq
Senior Member
Posts like a Corvette
 
Join Date: Nov 2005
Location: Hamilton, Ontario , Canada
Posts: 1,201
Thanks: 0
Thanked 0 Times in 0 Posts
jdq is on a distinguished road
Default

Try this, however it did not fix mine.
http://www.bonnevilleclub.com/forum/...&highlight=fan
jdq is offline   Reply With Quote
Old 01-19-2008, 12:33 PM   #10
Junior Member
Thread Starter
 
Join Date: Dec 2007
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
ganzman is on a distinguished road
Default Wow that was a simple fix!!!

WOW I opened the cabin filter cover and looked in with a light and there was a clump of insulation laying on top of the blower fan cage. No wonder it was making noise! I wonder how much insulation is trapped in the heater core??? I am going to try and pull the blower fan and then get a vacuum hose to the core to try and suck it out?????

Thanks for the tip on the insulation coming loose!!
ganzman is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
loud rumble from heater blower motor rangerdude1 2000-2005 4 03-14-2010 11:08 PM
How loud is KR? [Updated: Answer: Not louder than rod knock] xX1SSEI1Xx 2000-2005 14 01-14-2008 06:08 PM
A/C RECIRCULATE whw97ville 1992-1999 0 06-01-2004 10:45 AM


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 07:55 PM.


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.