1999 Buick Century Custom - Weird Squealing when running A/C - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Buick When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made.

Reply
 
 
 
Thread Tools Search this Thread
Old 07-07-2011, 11:20 PM   #1
Member
Posts like a V-Tak
Thread Starter
 
Tearitup's Avatar
 
Join Date: Jul 2011
Posts: 38
Thanks: 0
Thanked 0 Times in 0 Posts
Tearitup is on a distinguished road
Question 1999 Buick Century Custom - Weird Squealing when running A/C

I just came into possession of a 1999 Buick Century Custom. The only issue I have come across in my time driving it the past two days or so is that the A/C randomly squeals. I cannot reproduce the sound it makes. Let me clear up the fact that it is not a noise under the hood or something with the belt/compressor. The noise is coming from inside the dash.

When this squealing occurs, the A/C cuts out completely. When I turn the switch off and then back on again, the A/C resumes and works just as well as before.

I have absolutely no clue what the issue could be and I really hope someone could provide some insight into this issue. This car is my new daily commuter and I HAVE to have air conditioning during this hot summer.

Thanks so much!
Tearitup is offline   Reply With Quote
Old 07-07-2011, 11:39 PM   #2
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

Check under the dash, you may have a actuator arm moving funny.
Danthurs is offline   Reply With Quote
Old 07-07-2011, 11:41 PM   #3
Member
Posts like a V-Tak
Thread Starter
 
Tearitup's Avatar
 
Join Date: Jul 2011
Posts: 38
Thanks: 0
Thanked 0 Times in 0 Posts
Tearitup is on a distinguished road
Default

Not to sound dumb, but where can I find this actuator arm?

Thanks again.
Tearitup is offline   Reply With Quote
Old 07-07-2011, 11:43 PM   #4
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

Look in that area under the glove box. You can also turn on the AC and listen around and try to narrow down where it is.
Danthurs is offline   Reply With Quote
Old 07-07-2011, 11:45 PM   #5
Member
Posts like a V-Tak
Thread Starter
 
Tearitup's Avatar
 
Join Date: Jul 2011
Posts: 38
Thanks: 0
Thanked 0 Times in 0 Posts
Tearitup is on a distinguished road
Default

Okay - I will give that a shot tomorrow.

If I were to try to capture a video of it, would that help?
Tearitup is offline   Reply With Quote
Old 07-07-2011, 11:47 PM   #6
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

Ya, it will help.
Danthurs is offline   Reply With Quote
Old 07-08-2011, 12:15 AM   #7
Member
Posts like a V-Tak
Thread Starter
 
Tearitup's Avatar
 
Join Date: Jul 2011
Posts: 38
Thanks: 0
Thanked 0 Times in 0 Posts
Tearitup is on a distinguished road
Default

After looking around some more, I have seen a lot of people say that the blower is what makes the squealing noise. Are those easy to take apart and clean or would I need a new one? (assuming this is the issue)

Does this sound like a good suggestion to you guys?
Tearitup is offline   Reply With Quote
Old 07-08-2011, 01:30 AM   #8
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

That could be it. Guess I misunderstood your description.

From what I can see in the manual it says, remove the right side panel under the glove box. The blower motor is under the dash there. You unplug it, then remove the 3 bolts and it will come right out.

I've cleaned a few blowers that were making noise and they worked much better after a good cleaning. The fan part is likely very dirty. Clean the shaft by the motor and put a little 3in1 oil on the shaft.
Danthurs is offline   Reply With Quote
Old 07-08-2011, 01:39 AM   #9
Member
Posts like a V-Tak
Thread Starter
 
Tearitup's Avatar
 
Join Date: Jul 2011
Posts: 38
Thanks: 0
Thanked 0 Times in 0 Posts
Tearitup is on a distinguished road
Default

Thanks for the tips on how to get it out of there and clean it up.

My next question is this - would this be the cause of a random squealing noise or would a dirty blower make a constant noise? Maybe something is caught in it? I have heard people say that dirt and pine straw and a bunch of other debri have gotten lodged in theirs before and it would cause a lot of noise.
Tearitup is offline   Reply With Quote
Old 07-08-2011, 08:41 AM   #10
Senior Member
True Car Nut
 
jwfirebird's Avatar
 
Join Date: Dec 2009
Location: western,ny state
Posts: 9,616
Thanked 563 Times in 481 Posts
jwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond reputejwfirebird has a reputation beyond repute
Default

autozone lists a cabin air filter for your car i dont know where it is. on my car it was under the plastic that covers the pass side windshield wiper. the newer cars have these to keep the trash out of the blower motor
jwfirebird is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
A/C Temperature Inconsistency - 1999 Buick Century Tearitup Buick 7 08-04-2011 05:53 PM
1999 buick century transmission icehouse1 Buick 2 08-02-2011 09:18 PM
Blinkers are fast and passenger's side is solid - 1999 Buick Century Custom Tearitup Buick 11 07-31-2011 05:18 PM
Tearitup's 1999 Buick Century Custom Tearitup Your Ride: GM Pictures & Videos 13 07-18-2011 04:23 AM
Ford fan new to GM - 1999 Buick Century Tearitup Introductions for new members 7 07-08-2011 08:45 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 09:01 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.