1st diesel,new to fourm, power loss..

[factory rat]

just got my 1st diesel, 05 excursion, the power is amazing. now I have a problem, at about 2500 rpm's there is an intermitent flat spot or powerpower loss, that seems to clear up after letting up on the pedel. it happens in 2nd gear most of the time. truck has 90k on it, the turbo and egr cooler were replaced at 70k. I was thinking fuel filter but after reading fourms seems like the egr. is this a common problem and will warrenty replace it? it has a super chip program for towing and spedo recalibrated for 38" tires. Thanks for your time and advice...

[Granny]

Gonna give you a bump in case you haven't been helped.

[chuckles]

what does do without the superchip? Always return back to factory when trying to diagnose driveability issue.

[factory rat]

thank you, I didnt even think about that. will check first thing in the morning. I have been reading posts for a few days now, the people on here sure know there stuff. its like an owners manual of things that can go wrong and how to repair them. thanks again

[VeeDubTDI]

Do you have a boost gauge and/or a Scan Gauge (or something similar)? Mine does this sometimes because the MAP sensor is flaky. I have a new one for it, I just haven't gotten around to putting it in yet.

Congrats on the new truck.