[General | Members | C900 | 9000 | NG900 & OG93 | 92X | 93 | 95 | NG95 | 97X | 99 | Sonett | Vintage Models | Performance | Detail | Clubs & SOC | Other Cars | Books Movies & Music | Chat | FAQs | Gifts | Photos | Classifieds | Polls | What's New | Raffle | Photo of the Month | Sponsors]

9000 Bulletin Board
1985-1998
Search:


[Main 9000 Bulletin Board | Post Followup | FAQ ] [ Prev by Date ] [ Next by Date ] Member Login / Signup [Most Recently Edited Saabnet.com Photo Galleries]
Hissing in engine compartment, turbo gauge stuck
Posted by Ben H [Email] (more from Ben H) on Mon, 23 Mar 2009 13:10:26

I have a 1988 Saab 9000, there's a hissing sound while idling and it disappears when I apply moderate acceleration but comes back really loudly when the boost would have kicked in. I can't really tell whether there is any boost when I step hard on the gas, but the needle on the turbo gauge never budges from the line between the white (or green) and yellow regions.

The hissing comes from the intake manifold, and I think it's right at the wye connection to the intake. The hose clamps onto a plastic tube which then plugs into the manifold, I'm not sure how tight the connection is and whether it might be a gasket problem or something like that. I've checked the connections under the dashboard and at the hooter valve, they seem secure and the lines look fine, but the noise seems to come straight from the intake manifold.

posted by 67.159.8...

Posts in this Thread:
Members can receive an alert when someone posts in this thread.
Post a Followup

Name: Member Login / Signup [Most Recently Edited Saabnet.com Photo Galleries]
E-Mail: (Confidential & Secure - Not revealed to other users!)
Send me email when someone posts in this thread: (available to Members)

Subject:

Posting rules are simple - No for sale/wanted ads or live auctions may be here - use the classifieds.
You may not cross-post your message to multiple BBs.
Personal attacks, insults, or flaming are not allowed.
Posting any of this will result in an immediate loss of posting privileges on this site.
Site Members do not see any warning (red) text.

Message:

To add inline links to your post, use [link]http://www.domain.com/[endlink] or use the Optional fields below.
To add inline images to your post, use [img]http://www.domain.com/img.jpg[endimg] or use the Optional Image URL field below.

Optional Link URL: (e.g. http://www.saabnet.com/)
To promote your own Saab site here, you must have a link back to The Saab Network.
Link Title:
Optional Image URL: (e.g. http://www.saabnet.com/img.jpg)

captcha
Enter the Anti-Spam Code in the box below





The content on this site may not be republished without permission. Copyright © 1988-2013 - The Saab Network - saabnet.com.
For usage guidelines, see the Saabnet.com Mission and Purpose Page.
[Contact | Saabnet.com on Facebook | Saabnet.com on Twitter | Shop Amazon via TSN | Site Donations]


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 Conact | Site Donations
Your address is: 54.89.1.216 - Using CCBot/2.0 (http://commoncrawl.org/faq/) - Logged.
Site Members do not see red text instructions, green links, and bottom of the page banners.
Click here to see all the Site Membership Benefits!