Rough Idle - BMW Forum - BimmerWerkz.com
3-Series (E36) Chat relating to the BMW 3-Series from 1992-1999. Autodoodad Specific models include: BMW 316i, BMW 318i, BMW 318iS/ti, BMW 320, BMW 323, BMW 320, BMW 324, BMW 325, BMW 328.

 
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#1 (permalink) Old 08-09-2004, 04:10 PM
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Sometimes when I start my car, the idle is a bit rough for a few seconds then it goes away. It sounds like the car is hesitating .
I have a 97 328 with 42000 miles.
Any ideas why this is happining?
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#2 (permalink) Old 08-09-2004, 06:34 PM
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Yes... your ICV is dirty.... (Idle Control Valve).... I think there is a DIY cleaning post in the FAQ section.... if not... search it.. and you will find.


1997 E36 M3 1990 E30 325i
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#3 (permalink) Old 08-09-2004, 10:07 PM
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That is one common cause. There are a few others. Vaccum leak from a hose, or O2 sensor or even your FAMS. Just other possibilities for you to investigate.
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#4 (permalink) Old 08-10-2004, 09:30 AM
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I have a similar problem with my 97 M3. Starting from cold it idles a little rough for about 30 secs, then smoothes out nicely. If I try to drive within the first 30 secs, it will hesitate a bit. I have 97K on mine and it's been doing this for a couple years now.
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#5 (permalink) Old 08-11-2004, 02:12 PM
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Thanks Guys
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