my truck keeps dying while im driving on 2002 Cadillac Escalade EXT

i have a 02 cadillac escalade truck i take very good care of it like with oil changes, etc. my truck would work fine and then all of a sudden it will turn off while im driving and wont turn back on for over an hour, i took it to a mechanic and they replaced the fuel pump and filter and they said they fixed it but the next day it dyed again and hasnt turned back on for 3 days! they dont no whats wrong with it...does anyone have an idea? oh yea and its not the battery

by in Tucson, AZ on June 29, 2010
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1 answer
ANSWER by , July 30, 2010
check your catylic converter it may be clog, pushing your emissions back into the motor ..possibly the problem. i am having the same problem.its going to shop tomorrow. Have a mechanic hook up the computer to diagnose the problem also..okeedokee good luck