Crankshaft Position (CKP) SensorIgnition ModulePowertrain Control Module (PCM)Wiring
These are the most common problems we see with this vehicle. I am assuming the vehicle does run and the mechanic can not get it to duplicate the problem?
If this is the case, I would have him do a tap test on the computer. If you tap on the computer and the vehicle stalls there is a loose connection inside the computer and needs to be replaced. Have replaced a lot of computers on these vehicles for this problem.