Wow unknown problem with my saab!

 
Old 01-06-2010, 12:15 AM
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Exclamation Wow unknown problem with my saab!

i recently purchased a 2004 saab 9-3 with 85k miles. the car ran perfect until earlier today it started jerking on the highway. at first i felt like the transmission was slipping b/c as i was giving it gas it would start like vibrating (felt like i was going over rumble strips). it started off as a little slip i guess, then eventually got worse to the point where if i continued to give it throttle as it downshifted, it would cause this vibration. i got worried, and took a local road rest of the way home. i was testing it out and it only seemed to vibrate/jerk like this wen the turbo gauge would get really close to the red strips. if the turbo gauge was halfway then the car ran and shifted fine...
so i started leaning towards a turbo b/c i know there is a slight whistle coming from it, and i figured it just went on me; but at full throttle the power seemed to be there; i am very stumped by this problem; also the check engine light would flash and go away; it stayed on once and displayed misfire on cylinder 1, which i later reset with my scan tool; but it never came back on.
please if anyone has any thoughts on this, let me know asap
thanks
mikeandike88 is offline  
Old 01-06-2010, 02:46 PM
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It's possible that you're running lean and/or have fouled plugs. I'd start with fuel filter and plugs. Than it's fuel pump or the DIC. Need more info to tell for sure. You're experiencing boost cut most liekly.
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Old 01-07-2010, 12:30 PM
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well i checked the plugs, they look fine, (i did replace em like 2 months ago). like the car runs perfect wen throttle is halfway or lower, as soon as i give it maybe 3/4 throttle and the turbo gauge goes up to almost the red lines, then it starts to jerk like this. i took it for a quick drive this morning and check engine light came on and stayed on, so i checked it out and it gave me a p301 code (cylinder 1 misfire). so im thinking ignition coil??? or no??
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Old 01-07-2010, 02:23 PM
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very possible that the cassette is on the way out. Is there anyone with a similar car around you that you could swap with to test your theory? It's right around the milage when that part can start going bad.
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Old 01-07-2010, 07:25 PM
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I agree ^^^
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Old 03-12-2012, 09:14 PM
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Did anyone find out what was wrong with the above mentioned problem? I'm currently in the same predicament as Mikeandike88. Any feedback or direction as to a thread that might be helpful is appreciated.
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Old 03-13-2012, 11:57 AM
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Yea it was my ignition coils. Check rockauto.com. I believe they were in the neighborhood of $90
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Old 10-14-2012, 08:28 PM
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Originally Posted by mikeandike88 View Post
Yea it was my ignition coils. Check rockauto.com. I believe they were in the neighborhood of $90
Do you still have your Saab? If so, have you had any problem with the direct ignition coil purchased from rockauto.com? I have an '02 9-5 aero with a P1334 code. After much reading on this forum (thank you for everyone's insight) and other sites, I was under the assumption to only go OEM on the DIC (Direct Ignition COil). Maybe I'm wrong. Your feedback is greatly appreciated.

Thank you.
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Old 10-15-2012, 07:30 AM
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Yea I still have the Saab, and since replacing all 4 ignition coils I had no problems what so ever. Hope that helps
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Old 10-15-2012, 10:23 AM
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Thanks, mikeandike88.
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