Will not stay running

If it does not stay running, but it does start, then it is a fuel issue. First thing to do would be to change out the fuel filter, then check the fuel pressure. May be running low.

It's runs but doesn't stay running changed fuel pump n tps still nothing

If the check engine light is on, have the vehicle scanned for any trouble codes. You can have that done at a auto parts store. Write down any trouble codes. Also look for vacuum leaks, snug up the intake manifold bolts, and clean the Mass Air Flow Sensor with MAF cleaner, and change the air filter out. The other thing to check would be the Air Idle Control Valve, you say the engine runs but then will die off, this also would affect that symptom. It would be important to clean out the port it sits over also. You could try and clean this valve but chances are it should be replaced.

Thank you will try all of that n will respond with what happens again thank you

Hope it takes care of your problem.

did you figure your problem out my truck is doing the same thing

2008 f250 6.8 v10 Triton Stop at gas station and put gas .. drive off truck died I changed fuel pump and then notice safety switch was out put it back on truck start but doesn’t stay on !! Changed the fuel FPS and still nothing starts but dies out

2002 f250 diesel ex cab is having trouble cranking and staying running,help.