sonett III. 70-0mph, sit 5 mins, idle crazy ever since - Saab Sonett Bulletin Board - Saabnet.com
The banner above is an advertisment - if it asks you to download software, please ignore.
Site News - 3/26 M Car Covers (by State of Nine) | 12/12 Make Amazon Pay Saabnet!

[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]

Sonett Bulletin Board
1964-1974 [Subscribe to Daily Digest]
(Search Author's Posts: e.g. Keyword:username)*Members Only


[Main Sonett Bulletin Board | BBFAQ | Next by Date | Post Followup ] Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
sonett III. 70-0mph, sit 5 mins, idle crazy ever since
Like This Post: - Subscribe to Daily Digest for this Bulletin Board
Posted by rolf [Email] (more from rolf) on Tue, 13 Jun 2000 19:52:29 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

Heya,

Over memorial day weekend, I decided to take my 27 year old sonett III out for a long drive.

I got home okay, after about 80 miles of driving. It's important to realize that I had intended to drive a little more, like 300 miles one way. Needless to say, the sonett III got about 40 miles from home and manifested some symptoms that suggested it wanted back to the garage, NOW!..

So, being the "I've got an old car, let's drive it hard, see what breaks, then fix it" type of guy, I was blazing along on the interstate at 70 or 75 mph when a one-lane road construction constriction caused all traffic to come to a screeching halt. My temp gauge rose about to the 2/3 point, not very close to the red, but significantly past 1/2. While I was sitting waiting for traffic to resolve itself, something happened...

Idle suddenly rise into the thousands range, then dropped to about 200. 2500-200-2500-200-2500-200. If this was a 16v 900 engine, I'd say bad air mass meter, like that. I backed the car up the on-ramp that was right behind me ( heh ) and turned around and drive home.

Revving the engine up into the 3000 range, everything is basically okay, with the exception of being a little touchy in terms of throttle response, like a lurching from on-to-off throttle.

What I am wondering is what happened? What's the deal?

I know that the car had a pretty fast cold idle before, maybe 2000+. When the engine would warm up, it would kick down to like 1000.

I wonder if the previous owner had perhaps adjusted something wildly out of spec, which was working for the engine because something was gunked up or otherwise restricted. I drove it hard and something gave, now the previously set idle settings are all wrong.

If I go start the car now, it basically revs to 4000 and stays there. No hunting, but then I haven't let the car really warm up, since it just wants to rev at 4000 rpm I'm a little leery of even running it.

This is sonett #2, and I've probably had it for a month. Was pretty decent to drive before the 'event' but it always had a sticky feeling throttle until it was run at a decent speed for a while. What I mean is that I could feel some sort of backlash with very subtle throttle movements. Kind of a quick lurching back and forth. Running say at 65 mph on the highway for 5 minutes would clear that up, and it would run smoother.

At any rate, I was considering sticking my nose in the hatch tonight, and was wondering if anyone would be able to think of some quick checks that would solve problems with symptoms matching mine, or maybe someone would be able to ask questions that I would be able to answer- leading to solutions.


thanks much, I'm off to go put a freewheel control shaft in sonett #1. Turns out that the horrible transmission problems I was having were all due to an internally cracked control shaft. Hard for me to believe that I didn't check that part out earlier.

Again, thanks

Rolf


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!