Cadillac Repair: 2003 Cadillac stalls, blackish color, spark plugs

Question
QUESTION: My 1993 Cadillac stalls (at times) at red lights and it takes 10 minutes to restart??? It all most sounds like its flooded??

ANSWER: which YEAR is it ?. 1993 or 2003 ?

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QUESTION: The year is 2003... I've changed the battery 5 times in this Cadillac.

Answer
When this fault happens, Check to see if you are getting spark to the spark plugs while trying to start it. Pull a sparl plug and see if it has a blackish color on the white portion of the plug.

IS or HAS the check engine light ever illuminated while driving the vehicle ?.