loosing the prime on my truck witha full tank
The truck not getting the right amount of fuel if it back fires when its accelerating check to see if all your fuel injectors are good.
Most likely you have a throttle position sensor ( tps ) code, or bad wiring to the switch or an O2 sensor problem. Check the code history.
It is possible. Try cleaning your throttle body. If this does not work, search for vacuum leaks in your intake. Then check your idle speed at operating temperatures.
Check the connection on your valve cover gasket.....
you should not need to bleed the air the 6 .0 bleeds itself if you are getting air in system you have a leak somewhere allowing air to enter. check the seal on the fuel filter then if that is not problem, check all fuel fittings on truck till u find where it is leaking
Could be a vacuum leak. Check the gasket between the throttle body and the intake manifold, you may find it damaged.
I would check the fuel filter,fuel pump,or have your injectors cleaned, but pumping the gas is not helping on a throttle body all you are doing is giving it more gas which means you are going to flood it. You don't pump throttle body, you do the carburetor
My grandson says, "because it broke down". But to be more specific, check the shift-down linkage and/or the vacuum modulator (if your transmission has one).
check the TPS (throttle position sensor) check the TPS (throttle position sensor)
You need to check the EGR valve, It may be opening to soon. Have you check the timing???
On My '97 3.9l I have a Idle Air Control Solenoid on the back side of the throttle body It has a plunger with a mushroom shaped end on it. It is held on by 2 Allen head screws. My truck kept stalling and not triggering the check engine light. I cleaned the carbon off of it once and the truck seemed O.K. then it started stalling again and I ended up replacing it. So far so good.
could be your throttle position sensor or check and make sure butterfly flap is closing properly.