2001 BMW 320 320i BMW

2001 BMW 320
75,000 MILES • 6 CYL • 2WD • AUTOMATIC
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MANNYRONA
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My 2001 BMW 320i runs great on a cold engine, but after running it for about 10-15 miles, engine starts shaking and loses acceleration power. On a stop, while on "D", the engine acts like it is breathing. The RPM goes up and down constantly. Not sure what it is... help? hopefully it's an easy and inexpensive fix. Thank YOu!
Apr 4, 2010 at 11:35 PM
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2CARPRO JACK
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I am forwarding your question to our BMW expert.Thank you for using 2CarPros.com
Apr 5, 2010 at 11:53 AM
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DOCHAGERTY
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Check the intake manifold boot for holes or cracking. Look at the bellows to the ICV, they crack all the time.
Apr 6, 2010 at 5:27 PM