Oldsmobile/Buick Repair: 91 Skylark cutting off, buick skylark, vacum

Question
Hi,
I have a Buick Skylark that has run fine for a while.  Lately though the engine has just been cutting out.  It usually takes about 15 min for it to do it the first time.  It starts right back up but then will cut out in like 2 min.  Any help on this would be greatly appreciated.  It seems to happen when i take my foot off the accelerator.  Also it doesnt sputter or vibrate it just shuts off.  Thanks Again,
Daniel

Answer
hi danielle..well this could be a tough problem to find because it is intermittent.and i am not sure which engine your car has .but normally this is caused by a broken vacum line or iac motor idle air control mtr.i would try and check these first.ty billymac