Weird Idle Event (Any Thoughts??) - Saab 900 Bulletin Board - Saabnet.com
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Weird Idle Event (Any Thoughts??)
Posted by robert Hakalski [Email] (more from robert Hakalski) on Sun, 3 Aug 2014 11:05:11
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So it's been 1000 miles with a new tranny and a crank sensor replacement and all is well. Car has been running beautifully. I was out today with the car and when I started it up at the location I had driven to, the idle started to strangely "pulse" - not a wild errant pulse at all - but making kind of a
"woom woom woom woom woom" sound every second. I didn't notice anything peculiar driving the car on the highway, but when i got back into town, i floored the pedal to get around some idiot yakking with somebody in the middle of the street - and i noticed at the next light that that pulsing idle was gone. maybe the O2 sensor? The only other thing I noticed was that the interior light (at this point i was messing around in my garage) periodically dimmed a tad with the car idling, but the headlights seemed ok and NOT the kind of pulsing you'd get with a bad Voltage Regulator. Tthis was just a kind of random slightly dimming with the car turned on. Turned off, the light was stable.
So .... just curious if anybody had a thought.
Thank you!
posted by 71.175.24...
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