Occasionally the engine stalls for a couple of seconds when accelerating from stop, or near stop. This has happened about 6 times during the past 4 months.
Brief engine stall. on 2006 Buick Lucerne
GM has had issues with fuel injectors. You need to be able to duplicate the problem and then find out if the ign spark stays consistent at this time. If so it is possibly fuel delivery related. test the injectors- if one or two have higher resistance the injector may be causing the ecm driver to malfunction. Good luck ! Greg