Quote:
Originally Posted by emsp80
Started my 2000 Impala this morning and was running very rough and the check engine light was flashing. The same thing happened again when I started it again in the afternoon. Thinking in might be the cat. Any other suggestions would be helpful...
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I had that issue with my 2002 Impala. 2 of the 6 spark plugs failed. I changed the plugs and all was well. Well, they did have 151k miles on them. LoL.
If you don't have access to a code scanner, I believe Auto Zone will do it for free.