truck was running fine , I stopped at a light ,when the light turned green I hit the accelerator and the trunk would not move the engine was running but real slow
i shut it off and now it will not start . any ideas what i should check next ???

the fuel pressure was between 10 and 12 psi with stock pump , but i was not looking at the gauge when this happened . I just changed the lift pump today with a fass direct replacement pump -still will not start .

 

do u have any codes? or have u not checked? did u bleed the fuel lines when u tried to start it?

 

APPS reset?

 

check for codes, but sounds like it could be the inj. pump

 

codes 0253-1693-1688

---AutoMerged DoublePost---

reseting apps now
codes -0253-1693-1688

thanks

 

My buddys truck did the exact same thing punching it leaving from a light and ran rough and then would not start. And had the same codes as well.... I did try the apps reset procedure, new lift pump, new fuel filter, bleeding the lines, cleaning the MAP and AIT sensors, and still nothing, sadly we just put a injection pump in it friday night and the truck fired right up. So I would have to say you are looking at a new injection pump.

 

thanks

 

P1688 is usually the VP-44

Have you cleared the codes?