Car stalling

No, it almost sounds like a vacuum line is broken, someone did suggest that it could be a bad coil, and of course it has 8 of those...when you hold the gas to the floor, it makes almost like a whirring sound, and will not go, my Mom had a 2010 Sierra, and hers did almost the same thing, they said it was a fuel sensor. I think the mechanics see a woman and think we'll let's drain her dry, and they have. I have done everything that they said to do and then they keep saying well it will reset and it will be ok. But this has been going on for over a year now. Sometimes it drives perfectly and then the next day it goes crazy. We have replaced the fuel pump 2 times now, it has the parts for a flex fuel but they aren't being used so we have to get the parts for a 03. Again I am ready to shove a stick of dynamite up her tail pipe and call it a day. Thanks so much for the reply and I will contact the mechanics and tell them.your suggestion. It is driving me crazy at this point.

Did you ever figure out what what was wrong my 2003 GMC yukon xl 1500 is dont the same exact thing right now. I have fuel Pressure, the filter is fine, whole tune up with coil packs. No luck.

I have a 99 yukon, when i step on brake,dies to a stall,bang on tank ,starts ,same as above, usually bad pump,,no prefilter on pump,,tank clean,guess where all that crap went,,filter plugged, crap all the way from filter to injecters,,,all replaced, starts right up,again stalls with brake,,,not every time,,son and i looking for vacuum leaks, comes an goes

The same exact thing is happening to my 2004 Yukon XL. It seems that first it stops accelerating, then a few seconds later, when the car slows to a roll, it stalls out.. I usually have to wait about 20 min to start it up again. The engine turns over forever but never starts, and all the lights and radio work. It seems to happen on longer drives. i know engines need 4 things to run. Air, spark, fuel, and compression. Any ideas what might be going on??