what are the symptoms of a transmission going bad? on 1997 Chevrolet Cavalier

my red arrow light keeps flashing on and off, and I think it is pointing to the engine although the check engine light itself does not come on, my acr kind of knocks when I put it into drive

by in Denver, CO on April 23, 2012
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1 answer
ANSWER by , April 23, 2012
possibly a broken flywheel