Funky, isolated idle problem since colder weather - Saab 900 Bulletin Board - Saabnet.com
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Funky, isolated idle problem since colder weather
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Posted by SDBWORKS (more from SDBWORKS) on Sat, 10 Nov 2001 12:18:13 Share Post by Email
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Mine's an 89 3dr base n/a. Central Wisconsin, where it's getting colder in the mornings.

Every week day I get in start the car, drive 20 min to work - relatively smooth idle, good drivability.

Since the weather has gotten a bit colder - on weekends - I get in, start car, have smooth 5 min drive to grocery store. I get in after store, start, drive - erratic and low idle with stalling, occasional check engine light that goes out after a minute or two.

Only other symptoms - every once in a great while, after long drives, car will stick at about a 1200 - 1500 rpm idle. I do note an occassional slight hesitation only in 2nd, 3rd gears on accel.

I cleaned throttle plate and AIC a couple months ago. I've replaced some vaccuum hoses and grommets and I'm pretty sure of no vaccuum leaks.

I suspect O2 sensor, poss AMM? Thoughts, opinions?

TIY,

SDBWORKS

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