engine cutting out at 3/4 to full throttle no codes!

[suburbanz]

what could this be it feels like the whole engine shuts off for a split second and then back on again.new fuel filter also.thanks in advance

[ALSAIL]

That is a symtom of a non funtional lift pump.

[ChevyDooley]

Or the APP module. See other pedal position sensor posts for possibility.

[tanker]

Mine does the same thing, but I'm leaning towards the torque converter releasing and then locking up. Either a bad loose connection, or a glitch somewhere. I think mine only does it when its locked. If my lift pump was going, I doubt if I could full throttle from a stop to 75+mph up a hill on the interstate, already changed my fuel filter, still the same. :rolleyes:

[suburbanz]

it just started it here lately,it just had the following replaced in march.injector pump,fuel filter,lift pump.I dont see anyway it could be the lift pump as it seems very much electrical because it does not bog it cuts out all the way as you have cut the switch off and back on.Just wanted to see if anybody else had had this problem and had fixed it.thanks alot for the replys