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Engine stumbles off idle.....
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Posted by MI-Roger [Email] (#882) [Profile/Gallery] (more from MI-Roger) on Wed, 20 Sep 2006 04:11:54 Share Post by Email
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The car is a 2006 9-3SC 2.0T automatic with 4,400 miles.

My wife said last night that the engine was "missing" when accelerating and asked me to drive it. She also needed gas.

The only thing I noticed when I drove it was a little stumble/hesitation when accelerating away from a stop, almost like a flat spot or non-linearity in the throttle response. When accelerating away from a full stop at an intersection I would sense the stumble/hesitation as I was leaving the far side of the intersection as resuming speed. My wife later said that was what she felt too, but she also felt it while backing up in parking lots.

Yes, this is the same car that sat for 5 weeks with a nearly full tank of summer blend E10 fuel which was just consumed. Temperatures are now in the 40's in early morning.

I ran a can of fuel injector through the car in early August. Any ideas other than the possible fuel/outdoor temperature issue.

Thanks.

posted by 198.208.15... 
_______________________________________
Saabs owned:
2008 9-5 Aero Sedan, sold at 227K miles
2006 9-3SC 2.0T - Wife's daily driver
2000 Viggen Convertible - Sold May, 2022
1964 Quantum IV Formula Car - Retirement project
2000 9-5lpt Sedan, sold at 318K miles
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