Date: 09 Mar 1999 08:37:22 PST
From: Christopher Petrilli <>
Subject: Re: Idle problem on 95 Aero

Roy Bj=F6rkstrand <> wrote: > Christopher G. Petrilli wrote: >> ...I have a 95 9000 Aero which has a small idle problem. Normally, the >> idle (while I bit rough) sits around 800rpm when the car is warmed up..= . >> but sometimes for no explicable reason, the engine will stumble, drop t= o >> 300-500rpm, then pop up to 1200 for a second, then settle back down to >> 800rpm at idle. This happens mostly when it's warm---I've not noticed >> it much when cold... > Could be the idle control valve (my experiences come from 900). In 900 i= t is > located in front drivers side. It somehow controls the idle by passing a= ir to > the intake or something (I think). A quick look and a Haynes manual later it doesn't look like the 2.3 Aero=20 engine has one of those :-) But maybe I just missed it. The best way to describe the sensation is almost fuel starvation... but the injectors have= =20 been checked, as has the fuel system itself. THe only thing else I can think of a bizarre electrical problem (on a SAAB= ! you say?!?! :-)... i had one on a previous car, and a short in the head light relay would cause a HUGE drain on the charging system, causing the alternator to generate a huge load on the engine suddenly, which would cau= se it to drop... but I also noticed dimmed lights at that time on the older car... I've never seen anything like that on the SAAB. Chris --=20 | Christopher Petrilli ``Television is bubble-gum for | the mind.''-Frank Lloyd Wrig= ht

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