When my car is on and the RPMs are low, when I.

Tiny
ANONYMOUS
  • 2004 CHEVROLET OPTRA
  • 140,000 MILES

When my car is on and the rpms are low, when I am stopped at a light or it is in park, it chugs. Its like a bouncing motion, and this only happened after oil was added a few days ago. Also the check engin light turned on at the same point.
Any ideas on what this might be?
Thanks!

Monday, January 21st, 2013 AT 10:26 PM

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