truck backfires for a short time 5-10 min after start up and last for about a mi on 1998 Dodge Ram 2500

a mi or so. No codes appear. It doesn't happen every time but more often than not.

by in Mishawaka, IN on March 22, 2013
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2 answers
ANSWER by , March 22, 2013
scan for codes to start with and post for us to adv
ANSWER by , August 21, 2013
sounce like plugged open fuel injector