Results 1 to 7 of 7
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12 March 2014 #1
- Join Date
- 01 Dec 2013
- Location
- Las Vegas
- Posts
- 11
- Saab(s)
- 1999 9-3 SE Convertible
99 9-3 stumbles
My 1999 9-3 started to stumble at high rpm, then at different rpm ranges. I pulled the plugs and regapped them. Ran amazing for 1 day now its back. I ordered new ngk plugs and we will see what happens. Any ideas?????
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12 March 2014 #2
- Join Date
- 01 Dec 2013
- Location
- Las Vegas
- Posts
- 11
- Saab(s)
- 1999 9-3 SE Convertible
Forgot to say computer reads missfire on cylinder # 3. DIC is fairly new as well. Might reinstall the older one I replaced as I replaced it and found it was not the problem.
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12 March 2014 #3
Mathieu Verberne Saab Fan
- Join Date
- 10 Apr 2012
- Location
- Kalmthout, Belgium
- Posts
- 37
- Saab(s)
- 9-5
First try the new spark plugs. How many miles did they run?
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12 March 2014 #4
- Join Date
- 01 Dec 2013
- Location
- Las Vegas
- Posts
- 11
- Saab(s)
- 1999 9-3 SE Convertible
About 5,000. However they are not NGK. The new plugs will be NGK.
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13 March 2014 #5
Mathieu Verberne Saab Fan
- Join Date
- 10 Apr 2012
- Location
- Kalmthout, Belgium
- Posts
- 37
- Saab(s)
- 9-5
Try them a.s.a.p. I had problems with the ignition also, due to old spark plugs. Mine were 10k km (6.250 miles) old. After fitting new bcpr7es-11 spark plugs all was fine.
Some advice for others:
If you can't find the bcpr7es-11's buy the bcpr7es standard, and gap the electrode yourself at 1,1 mm
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17 March 2014 #6
- Join Date
- 01 Dec 2013
- Location
- Las Vegas
- Posts
- 11
- Saab(s)
- 1999 9-3 SE Convertible
Replaced the plugs.... Still erratic stumbling. Till I replaced the D.I.C. today. I am not totally convinced that's the fix, However I will know tomorrow and will post my findings!!!!!!!!! A big THANK YOU to all that have helped by replying!!!! We can make a difference by helping one another!!!!!!!!!!
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27 March 2014 #7
- Join Date
- 01 Dec 2013
- Location
- Las Vegas
- Posts
- 11
- Saab(s)
- 1999 9-3 SE Convertible
Replaced D.,I.C. and now smooth as ever!!!!!! D.I.C. was the culprit all along!!!!!!!! Hope this helps others....