8cummins8

i have a 01 5speed 2 wheel drive 24 valve as far as i kno its completly stock but i am having trouble with power issues around 2000 to 2500 it loses power then around 25oo it picks back up iv changed oil air and the fule filter and it did not help im not sure what else to truy and this bein my first cummins kinda new to the whole thing so any advice would be verry apreciated

i have a 01 5speed 2 wheel drive 24 valve as far as i kno its completly stock but i am having trouble with power issues around 2000 to 2500 it loses power then around 25oo it picks back up iv changed oil air and the fule filter and it did not help im not sure what else to truy and this bein my first cummins kinda new to the whole thing so any advice would be verry apreciated

thank yall , someone told me my injector pump was goin out but that did not sound right how do i tell if my turbo is goin out