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E28 (1982 - 1988)

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  #1  
Old 09-06-2009, 06:13 PM
jvaughn21 jvaughn21 is offline
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Location: Kansas
 
Join Date: Oct 2008
Posts: 29
Mein Auto: 1988 E28
1988 528E hesitation

I always try to let the car warm up for a minute or two before I drive, but even then it acts like it's going to stall when i press the gas at first. But by the next stoplight it's fine. Anything i should worry about?
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  #2  
Old 09-08-2009, 09:03 PM
Slaytanic_666 Slaytanic_666 is offline
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Location: Canukistan
 
Join Date: Sep 2008
Posts: 47
Mein Auto: 1983 528E
I was just going to post a similar thread, although mine is just after start up, it wants lag out going up a small hill, less than 500m after start up, it's fine after that. My guess is it's a fuel thing dunno, spark is fine, air fine, there is no cold start injector right now. I am guessing a fuel relay and new filter won't hurt either. But funny how it almost stalls right out then picks up again, then it's good for the day.....any ideas? for the OP and me?
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  #3  
Old 09-24-2009, 08:25 AM
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hugh1850 hugh1850 is offline
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Mein Auto: M3
Sounds like a fuel issue. Is it running very rich when you start it up? Can you smell gas? If you fuel injectors are leaking into the cylinder head while the car sits overnight it could be dripping down into the combustion chamber causing a rich condition the first few minutes of driving. Does it go away after a few minutes of driving? If not you may have an incontinent cold start valve (I think the Eta has one, I know the 535i does).
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  #4  
Old 09-27-2009, 09:05 PM
Slaytanic_666 Slaytanic_666 is offline
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Location: Canukistan
 
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Mein Auto: 1983 528E
Definitely smell the gas first thing, but with a cracked head what do I expect? It still runs strong now for 4-5 months, I baby it though. Looking at a 87 535i tomorrow the red one! 247,000 km's auto(oh well!).
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  #5  
Old 09-29-2009, 09:53 AM
jimoreno jimoreno is offline
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Mein Auto: 2006 X3
I remember reading somewhere that a bad 'thermo time switch' can lead to cold/warming-up issues. Check the sensors per Bentley to confirm that they are good.
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  #6  
Old 09-30-2009, 09:43 AM
luckyus6 luckyus6 is offline
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Location: SW Florida
 
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Posts: 3
Mein Auto: 1987 528
I am having a similar problem with my 528, starts fine, runs fine, until it gets warm and then it wants to stall out when stopped. Replaced ICV and O2 sensor, still having problem, any suggestions???
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