Partly yes. Flashing check engine light means very serious combustion problem that WILL damage the catalytic converter.
But still, I would have someone plug in an OBD-ii scanner to see all the codes. Autozone in some areas still performs this service for free. You can also go to CSK/O'Reilly and "borrow" their scanner for a deposit. They also partner up with a shop in the area to scan customers' vehicle for free. Just ask them to where to go.
Once the scan is completed, please post the code numbers here and we will help diagnose.
On the side note: I am surprised that the dealership won't plug in its scanner while you were there getting the service.
Sunday, May 10th, 2009 AT 9:37 PM