When I start my BMW 330ci it idled low won't stay running.

2004 BMW 330CI
102,000 MILES
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GKWHITE83
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I drove my car 30 minutes before running across this problem and it was running perfectly fine wither no signs of problems. Whenever I crank it now it will start, but then idle low and cut off every time.
Feb 13, 2012 at 5:14 AM
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JACOBANDNICKOLAS
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Check for vacuum leaks and check the idle air control valve.
Feb 13, 2012 at 5:16 AM
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GKWHITE83
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What's the idle air control valve
Feb 13, 2012 at 5:20 AM
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JACOBANDNICKOLAS
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The iac is responsible for maintaining the engine's idle speed. On fuel injected engines, the throttle plate closes the entire way when you take your foot off the gas. The IAC allows metered air to enter the engine so it can run.
Feb 13, 2012 at 5:31 AM
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GKWHITE83
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Thanks, I've been up pacing back and forth, wondering how could this happened without any codes or symbols.
Feb 13, 2012 at 5:43 AM
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DOCHAGERTY
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What has shifted?
Mar 30, 2013 at 4:00 PM
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