Date: Tue, 7 Dec 1999 07:13:18 -0600
From: "Franke" <>
Subject: Re: Check Engine Light - 99 9.5

>Jim Brown <> wrote in message > >> My wife's pretty new 9-5 (less than 3,000 miles in about 4 months) is >> showing a "Check Engine" light. She took it to the dealer when it first >> showed up, they couldn't find anything wrong. It's been in the garage >> for almost two months since (she was out of commission for surgery), but >> now that she's driving it again, the light is on again. >> >> What are the usual scenarios for this "check engine" light? She thinks >> it may have been related to moisture -- either rain or she had it >> washed, I think. Her driving is virtually all around town, short trips, >> about 25/75 expressways and city streets. The check engine light is usually triggered by a fault in the emission control system. I suppose a loose fuel cap could cause this because part of the emission control system is to prevent gas fumes from escaping from the tank vent. Simple things like a loose or leaking vacuum hose are the usual cause for the light. Vacuum hoses are the easiest thing for amateurs like me to check. Beyond vacuum hoses, a more complicated reason for the light should be considered. It would require knowledge of the Saab emission control system to really know what to do next. The possibilities are endless. thanks Franke

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