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 C900 Bulletin Board | BBFAQ |
Prev by Date | Next by Date | Post Followup ]
Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Misfiring
Posted by tweetiedancer [Email] (more from tweetiedancer) on Tue, 5 Sep 2006 15:50:47
In Reply to: 1987 SPG Bucking/misfiring every SO OFTEN, BaTT blinkin, saabrobaz, Tue, 5 Sep 2006 11:20:59
Members do not see ads below this line. - Help Keep This Site Online - Signup
If you have the old wires (which probably did not misfire) try them and see what happens. Also, check for insulation breakdown by looking at the wires at night with the motor running. Any arcing or snapping will show you the problem area. When misfire at idle, troubleshoot the system to find which cylinder is causing the problem. One by one remove a plug wire and see which one does NOT make the misfire go away...this one is your culprit. Focus around this cylinder and narrow it down to the root cause of the problem. I've seen bad wires, loose ceramic insulators on spark plug electrodes, loose connections, arcing wires, cracked Distributor Caps, pinched wires, and high voltage leakage by seeming good insulation. Another problem could be cross-fire btween plug wires which have weak insulation. Tell us how you make out.
posted by 65.96.242...
Posts in this Thread:
- 1987 SPG Bucking/misfiring every SO OFTEN, BaTT blinkin, saabrobaz, Tue, 5 Sep 2006 11:20:59
- UPDATE 2:Bucking/misfiring every SO OFTEN, BaTT blinkin, saabrobaz, Fri, 8 Sep 2006 11:45:25
- Re: 1987 SPG Bucking/misfiring every SO OFTEN, BaTT blinkin, Brian, Wed, 6 Sep 2006 04:09:18
- Update 1, saabrobaz, Wed, 6 Sep 2006 10:21:08
- Misfiring, tweetiedancer, Tue, 5 Sep 2006 15:50:47 <-- Viewing This Message
- Ever think it could be two different problems?, RayF, Tue, 5 Sep 2006 14:51:29
- Re: 1987 SPG Bucking/misfiring every SO OFTEN, BaTT bli, Justin VanAbrahams
, Tue, 5 Sep 2006 12:05:09
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
![](/tsn/xyz/stateofninebutton.gif) |
SaabClub.com
![](/tsn/xyz/scnabutton.gif) |
Jak Stoll Performance
![](/tsn/xyz/jakstollbutton.gif) |
M Car Covers
![](/tsn/xyz/mcarcoversbutton.gif) |
Ad Available
![](/tsn/xyz/buttonavailable.gif) |
![](/tsn/images/tsnmap.gif)
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!