1996 GMC C3500HD User Comment / Complaint

I have a 96 gmc 3500 with stalling problems. i almost have been in two accidents with this problem. once was when the stall happened during a intersection at a highway. the other in a parking lot, i almost hit a person and truck, because when the engine stalls i loose all brakes and all steering. i am told it is the pmd, i am going to go and spend $400 tomorrow and relocate the pmd. i was told by a gm dealer if there was a code to go by it possibly would be a warranty item. i have spent $270 already for them to tell me that. i think that gm need to correct the problem and stop being so careless with peoples lives.