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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E36 (1991 - 1999)

E36 (1991 - 1999)
The E36 chassis 3-Series BMW was a huge hit among driving enthusiasts from the first moment the car hit the pavement. The E36 won numerous awards over the years it was produced and is still a favorite of many BMW enthusiasts to this day! -- View the E36 Wiki

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  #1  
Old 01-19-2013, 09:15 PM
randyf randyf is offline
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Location: Las Vegas
 
Join Date: Jan 2013
Posts: 4
Mein Auto: 323ic
99 E36 Low RPM stumble when warm? suggestions?

Okay folks. I did a search, and didn't see anything that jumped out at me so I thought I'd try the collective knowledge to see if this is a common issue.

I've only owned the car for a couple weeks. Overall it seems to run pretty good, but I noticed that it has a bit of a stumble when leaving a light or sometimes when changing gears.

it *seems* to only happen after it's warmed up although I wouldn't guarantee that. NO CEL's, no pending codes (I did a scan).

My standard MO when I get a new to me car is to go through and change the juices, and spark plugs just so I have a baseline. I have NOT done that yet, and perhaps new plugs will do the trick?

Anyway, I know I'm a noob here so please go easy on me Thanks!
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  #2  
Old 01-19-2013, 10:46 PM
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Hectorml07 Hectorml07 is offline
WYKDBMR
Location: California
 
Join Date: May 2009
Posts: 689
Mein Auto: BMW E39 6 Speed
Yep, try to swap out the plugs, oil change, oil filter, new fluids and then check the vital signs on your ride again. Update your progress after you have done this. Afterwards try and save up some cash for a cooling system overhaul in order to feel confident everywhere you drive it. Also if you have not posted up pictures of your car do so now! lol. Ohhh and welcome to the fest!
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Old 01-20-2013, 11:57 AM
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drivinfaster drivinfaster is offline
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Location: in the sticks you piney
 
Join Date: Nov 2007
Posts: 10,636
Mein Auto: rescued bmw's
ifirst, welcome to the fest!!

would also suggest cleaning the throttle body and the idle control valve.

and +1 with the pics.



df
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Old 01-20-2013, 12:16 PM
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ZeGerman ZeGerman is offline
Warm Leatherette
Location: Seattle, WA
 
Join Date: Mar 2009
Posts: 18,503
Mein Auto: 1998 BMW 328is
I agree with everything mentioned above. The first thing I would look at would be the air intake boot (check for cracks, which may be small and down inside the flexible "accordion" section). I'm thinking it's a vacuum leak issue.
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1998 BMW 328is
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