2002 Cadillac Deville rpm fluctuation at stops

2002 CADILLAC DEVILLE
11,300 MILES • V8 • 4WD • AUTOMATIC
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CGRIMM1
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When my car is at a stop light the rpms start to fluctuate rapidly up and down and the car starts to jerk, and eventually it will cut off.
Jun 5, 2009 at 4:31 PM
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FACTORYJACK
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Is there any check engine light when this happens?
Jun 5, 2009 at 9:38 PM
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CGRIMM1
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no, check engine light not on.
Jun 8, 2009 at 7:53 AM
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FACTORYJACK
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Does this happen all the time, or typically after cruising speed(45-60) is reached and the come to a stop? Can you keep the car running with some throttle?
Jun 8, 2009 at 11:53 PM