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  #1  
Old 27th December 2009
jeff88ix jeff88ix is offline
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My Saabs: 2007 93 2.0 T, 2007 93 Aero 2.8T
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Default Rough Idle at cold start 2007 93

I have a 2007 93 that runs very rough at cold start (not necessarily cold outside, summer or winter) runs smooth after a short time. Any ideas or should I try the dealer, the car is technically under the powertrain warranty.

What have your experiences been with warranty issues of this sort? The car was a program or lease turn in purchased from a GM dealer. I'm guessing I will have to go to a Saab dealer for service, I'm wondering how I will be received, not purchasing the car new from Saab.

Thanks
Jeff
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  #2  
Old 27th December 2009
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wtfwill wtfwill is offline
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spark plugs? coil packs?
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  #3  
Old 27th December 2009
007saab 007saab is offline
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I was experiencing the same thing when I had to disconnect the battery to charge it properly. Lo and behold when I reconnected it the rough idle after start went away. The computers probably got reset and that's all it needed. It's worth a try.
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  #4  
Old 27th December 2009
jeff88ix jeff88ix is offline
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Thanks for the replys guys, I had also considered plugs, but would think that the problem would continue when warm.

The ecu reset sounds possible, it seems and smells like a rich condition, possibly fuel mapping that a reset would fix? I'll try it tomorrow.

Thanks
Jeff
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  #5  
Old 27th December 2009
ctrlz ctrlz is offline
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Running "very rough" at idle sounds like a vacuum leak. Check your fuel trims with a scan tool if available.
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