The engine stops.
Check for vacuum leaks.
if you do have gas in the car then it could be the idle control valve. it stops the engine from stalling when the car is stationary
the fuel shortage going and the magnito stops when not enough fuel or to much air goes into the engine.
Carburator problems -- dirty gas -- water in gas
when i am driving my toyato 2001 Eaco stops running, it will start back up
I would start with replacing the fuel filter.
The distributor might be damaged on your 1999 Buick Regal if it stalls occasionally and will not start. This problem is common in older vehicles and once you sit for a few minutes, the vehicle will generally restart.Ê
change you r catalytic converter its clogged
sounds like you have a leaky intake manifold
The torque converter clutch may be staying engaged, causing it to kill the engine when stopping.
Had a recent situation with similar symptoms. Turned out to be a faulty Mass Air Flow Sensor. P/N of replacement was 19179715. Hope this helps.