car stalls , or seems to miss or hesitate while driving on 1994 Buick LeSabre

Have had the car stall when service engine light comes on, other wise it will keep running but will hesitate or act as if it is missing.(chugs). This is only at times then runs fin when it does stall it starts right back up and runs fine. Have already replaced cranck senser

Asked by for the 1994 Buick LeSabre
I would check for codes from the Service Engine Light. You could have several reasons for the stalling i.e a bad coil pack, a bad ignition module, a bad ground, bad mass air flow sensor, a large vacuum leak in the intake air boot area etc. Really need to have a good Technician inspect this problem before you get stranded.
problem ended up being ingnition coil pack