accelarating from a stopped position or in motion the vehicle hesitates sometime on 2002 Ford Expedition

not often, fuel pump has been changed,

by in Hinesville, GA on July 17, 2012
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1 answer
ANSWER by , July 17, 2012
Do you have a check engine light on? If so, get code read and post code on here so we can better assist you. Hesitation could be from poor ignition, fuel air mix or exhaust blockage need more info. please.