truck stumbles and or dies

[smokeone]

Before we all say cps Ive put three in her already thinking cps.I checked the connector and made sure pins looked alright. this is what it does though.I can start it pull out onto road hit brake dies.start it back up may run fine for rest of day or it can also not run fine?? I also have problem when driving it will stumble tach will go to zero and come back up and go again.I have only had one ses light and have been doing this for a week or so.