what is causing the engine light to blink

1999 CHEVROLET LUMINA
143,000 MILES
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MDWINDLE77
  • MEMBER
  • 1 POST
it is running ruff and we changed the plugs
Aug 26, 2011 at 9:33 PM
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WRENCHTECH
  • CAR REPAIR CONTRIBUTOR
  • 20,761 POSTS
The light is blinking to tell you that you have a misfire serious enough to damage the Catalytic Converter and it should not be driven. If you get the stored codes read, that will identify which cylinders are having the problem.
Aug 26, 2011 at 10:00 PM
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