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Old 3rd July 2009
Homebate's Avatar
Homebate Homebate is offline
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Join Date: Apr 2009                                                
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My Saabs: 2000 Saab 9-5
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Question Idle Problem (loosing revs).

Hey guys, I have a problem on my 2000 9-5, when i put the car in drive and lets say im at a stop light so my foot is on the break, the engine looses revs. (like its out to stall, I have an Automatic), the the revs. go back to normal, it does this about three of for times. Also I have noticed that the lights dim at the same time. If I put the car in Neutral it stops. This only happens when its in drive and im at a standstill. Has this ever happened to anyone else. Could you, pleas help?
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Old 3rd July 2009
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luv2drinkcoke luv2drinkcoke is offline
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Join Date: Dec 2006                                                
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My Saabs: Suzi - 2001 95 Arc 2.3t Auto
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Last time that happened to me, my car had gone into limp home mode. But you would have a cel if it was in limp home mode. I changed out my spark plugs and all was good.
When was the last time you cleaned your throttle body, changed the plugs, fuel filter, air filter and/or cleaned the maf and map sensors?
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Old 4th July 2009
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Ivan Ivan is offline
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If a vacuum hose slipped of to the brake booster, it will do that
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Old 4th July 2009
lesenyap lesenyap is offline
Join Date: Jul 2008                                                
Location: grays essex
My Saabs: 1998 95 se 20t (bmw worrier)
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mine does that a bit as well ,lights dim ,revs drop a bit ,but mine is a manual so not really noticable could be radiator fan kicking in ,or something else with a big power drain (air con)maybe.
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Old 19th July 2009
makingwaves makingwaves is offline
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Join Date: Dec 2007                                                
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My Saabs: '01 9-5 - 2.3t 128k
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I've been having this problem and most of the time when i turn off the ACC (or put it in neutral, but either way usually does the trick) it goes away... the ACC seems to be really putting alot of strain on the car actually.

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