The banner above is an advertisment - if it asks you to download software, please ignore.
Site News - 7/1: Members: Log In to See Fewer Ads! | 5/28: SAAB Evolutions/TSN T-Shirts $14
[General | Members | C900 | 9000 | NG900 & OG93 | 93 | 95 | NG95 | 99 | Sonett | Vintage Models | Clubs | Other Cars | FAQs | Gifts | Member Photo Galleries | Member Directory | Classifieds | Manuals | *Buddy Registry | *Mileage Registry | Polls | What's New | Raffle | Photo of the Month | Sponsors]

9000 Bulletin Board
1985-1998 [Subscribe to Daily Digest]
(Search Author's Posts: e.g. Keyword:username)*Members Only

[Main 9000 Bulletin Board | BBFAQ | Prev by Date | Next by Date | Post Followup ] Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
AC Noise: Belt or fan bearing?
Like This Post: - Subscribe to Daily Digest for this Bulletin Board
Posted by Ben Millard [Email] (more from Ben Millard) on Tue, 9 Jul 2002 13:16:20 Share Post by Email
Alert me when someone posts in this thread:
Members do not see ads below this line. - Help Keep This Site Online - Signup

I have a high-pitched squeal that happens intermittently in hot weather. Just had the AC recharged, so it is working for the first time in a year. The belt is about 1 year old, the idler and tensioner are original. (My recent tensioner-bracket-bolt failure did not damage anything beyond the bracket)

Could be slipping belt: Happens when ACC is running in "AUTO" and at moderate fan speeds. Interval is very consistent with cycling the compressor. When the squeal happens (It's high, 6-8 KHZ) the airflow from the ACC stops. However, the amplitude is really low. I know there's a lot of insulation under the hood, but this seems ridiculously faint.

Could be the ACC's fan bearing: When it squeals and the air stops, I do NOT notice a loss of power steering, and I don't THINK the voltage drops on the EDU. (I wasn't looking at it, but I'm super paranoid due to past failures.) It also only occurs under AUTO fan speed selection, seemingly at light-low-medium fan speeds. If I run the fan up to full-speed, then no squeals are heard at all.

Now, the pitch is so high, it seems way out of range for low fan RPMS. But it seems way too quiet to be a belt-squeal, I'm accustomed to hearing belt-squeal echo off the buildings. I'm lost, is there anything else that is turning pretty fast, (explaining the high pitch) but lightly loaded (explaining the low amplitude) inside the dash?

The temp sesnor fan?! But why would that thing silence when the ACC fan is at full speed?!

The CD player's spindle? No, the CD player died a couple of weeks ago.

Small animals trapped in the speedometer? Overworked Gremlins appealing for higher wages?

Thanks
Ben

posted by 167.165.1...
Posts in this Thread:
Alert me when someone posts in this thread:
Members do not see ads below this line. - Help Keep This Site Online - Signup
Post a Followup

No Site Registration is Required to Post - Site Membership is optional (Member Features List), but helps to keep the site online
for all Saabers. If the site helps you, please consider helping the site by becoming a member.

Name: Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
E-Mail: (Optional)
Re-Enter E-Mail: (Confidential & Secure - Not revealed to other users!)
Note: Please check your spam folder for BB responses.

Subject:

Posting rules are simple - No for sale/wanted ads may be posted here - use the site classifieds.
You may not cross-post your message to multiple BBs.
Not permitted: political/religious topics and being disrespectful (personal attacks, insults, etc...).
 Site Members do not see any red text, inline ad links, bottom of page anchor ads, box ads, or anti-spam check.

Message: (please no for sale/wanted classifieds - post those in the Saabnet.com Classifieds)
Links are now automatically made active, no need for any special code (or use the Option Link field below) - don't put links in () or end with a '.'
To add inline images to your post, use [img]http://www.domain.com/img.jpg[endimg] (or use the Optional Image Link field below).

Links are now automatically made active, no need for any special code (or use the Option Link field below) - don't put links in () or end with a '.'
To add inline images to your post above, use [img]http://www.domain.com/img.jpg[endimg] (or use the Optional Image Link field below).
Optional Link: (e.g. http://www.saabnet.com/)
Link Title: (Optional)
Optional Photo/Image Link: (e.g. http://www.saabnet.com/img.jpg)
Photo/Image to Upload: (Please be patient while file uploads)



StateOfNine.com
SaabClub.com
Jak Stoll Performance
M Car Covers
Ad Available

The content on this site may not be republished without permission. Copyright © 1988-2024 - The Saab Network - saabnet.com.
For usage guidelines, see the Mission & Privacy Notice.
[Contact | Site Map | Saabnet.com on Facebook | Saabnet.com on Twitter | Shop Amazon via TSN | Site Donations]

Random Saabnet.com Member Gallery Photos (Click Image)
This is a moderated bulletin board - Posting is a privilege, not a right. Unsolicited commercial postings are not allowed (no spam). Please, no For Sale or Wanted postings, SERIOUSLY. Classifieds are to be listed in The Saab Network Classifieds pages. This is a problem solving forum for over 250,000 Saab owners, so expect to see problems discussed here even though our cars are generally very reliable. This is not an anything goes type of forum. Saabnet.com has been a moderated forum since 1988. For usage guidelines, see the Saabnet.com Mission and Purpose Page. Please remember that you are not anonymous. Site Contact | Site Donations | Other Sites by SP - Poverty2Prosperity.org | Run Club Menlo Park | ScreenBot


Site Members do not see red text instructions, bottom of the page anchor ads, or box ads.
Click here to see all the Site Membership Benefits!