Re: rough ridin' continued - Saab 9000 Bulletin Board - Saabnet.com
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]
[Main 9000 Bulletin Board | BBFAQ |
Prev by Date | Post Followup ]
Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Re: rough ridin' continued
Posted by Craig [Email] (more from Craig) on Sun, 10 Dec 2000 14:26:15
In Reply to: rough ridin' continued, bg, Sat, 9 Dec 2000 23:45:47
Members do not see ads below this line. - Help Keep This Site Online - Signup
Pull off every vacuum hose that goes to the intake manifold one at a time. Suck on each line. If you can draw air from any of them then you have a vacuum leak. I guess the exception to this is the line that runs to the valve cover as part of the PCV system. Aero Guys advice is good too, pinch hoses while its running to see what hapens. The charcoal cannister is located in the (US) passenger side fender and is connected to a fat and a skinny hose that disapear in that direction from the intake manifold. Both should hold vacuum. You can remove the passenger side turn signal to access it if a hose has popped off. Another likely culprit is the hooter valve, a small cannister connected to the air intake with a small vacuum line going to it. Again, the small line should hold vacuum.
Where is your engine idling? It should idle around 900 rpm, if it is lower than this the AIC valve could be bad (though these normally fail in the "high" position) or your base idle could be too low, both of which would cause similar symptoms. If it only does this when cold then I would suspect the AMM. If only when hot then maybe the O2 sensor. Often vacuum leaks only show up when cold too so this might point towards something in the idle system.
Good luck,
Craig
Posts in this Thread:
- rough ridin' continued, bg, Sat, 9 Dec 2000 23:45:47
- Re: rough ridin' continued, Craig, Sun, 10 Dec 2000 14:26:15 <-- Viewing This Message
- 900 idle? Problem with idle surge w/ alternator use, Bob, Mon, 11 Dec 2000 08:54:23
- Hmmm., Craig, Mon, 11 Dec 2000 12:06:16
- Oh, Clean the Throttle Body too (n/m), Craig, Mon, 11 Dec 2000 18:05:31
- Should have included 1997 aero = computer controlled idle, Bob, Mon, 11 Dec 2000 15:57:57
- Also, Bob, Mon, 11 Dec 2000 16:01:19
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.
StateOfNine.com
|
SaabClub.com
|
Jak Stoll Performance
|
M Car Covers
|
Ad Available
|
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!