Everytime I'm coming to a stop my rpm go up and down then shut off what is wrong on 2007 Chevrolet Colorado

Whenever I'm coming to a stop my rpm goes up n down then shuts off what can it be.. plz help

by in Potwin, KS on November 03, 2012
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1 answer
ANSWER by , September 08, 2013
what do you set sparkplugs gap on chev colorada