OK so I have been working on this truck for the past day. The problem is the truck starts and stays running for about two seconds and then dies. I just replace a fuel pump because I thought that was the problem but that’s not the case. I’m still having an issue where the truck starts but then dies immediately. If I give it throttle and tap the gas is stays running for a little bit but then dies. Does anyone know what the problem is?
What were the symptoms that caused you to change the pump? Was the truck running before the fuel pump change? What fuel pump did you replace it with?
The starting then stalling immediately was the initial problem. Truck died on me while driving into work at 30mph. Pulled over and tried to start it by no luck and that’s when I towed it home. Didn’t hear fuel pump prime, check fuse (Good) , relay (Good) so decided to change to fuel pump
No codes , vacuum lines should be good. And how to check MAF sensor ? Truck dies immediately. I don’t have scanner
In other words change the relay, it works, but when gets warm, let's go and the longer it cools the longer it runs. There a horrible design
You can try unplugging the MAF sensor and see if it stays running. If so you likely have a bad MAF, but that should set a code. I am starting to think it has something to do with the key transponder system. That will allow the truck to start, but shut down after a couple of seconds if the ECU does not get the OK from the key transponder. Like the other guy said, try a different key and see if it works. If so replace the bad key. If not you may have to get it checked out by the dealer.
You checked the relay? If so then it's getting power in and out. With a solid contact. In the truck right? Then check the fuel pressure. If not contact URD. When that fails PM me lol ext 3 for steven
