Hi. My chevy blazer s10 will not stay running. It will let you drive it for about 10 minutes, then its like it cuts off but catches itself again, will let you drive for about 2 minutes and cuts off. Will not start again until it sits like over night. We have had a service station replace the egr valve, the crank sensor, the map sensor, the fuel pump, the distributor, and the (used) computer, and many other things. After 3 weeks of it being in the service station, and all the money put into the chevy, it is still in the same NOT RUNNING condition as when we brought it to the repair shop! We are out of money for repairs. We NEED this vehicle! PLEASE HELP!