Awasome 2002 Buick Lesabre Check Engine Light Flashing Ideas. It's very hard to diagnose with out that vital information. If your buick lesabre has a sputter, it is most likely going to be caused by bad fuel system, ignition system, maf sensor, or bad catalytic converter.
Web 2002 buick lesabre check engine light flashing. My car shakes and the check engine light flashing. Web the most common cause of flashing or blinking check engine light is a misfiring engine, which can be caused by several different engine issues.
