every-time i start my truck it either starts strong and almost bogs out and when i hit the gas pedal it is delayed power and im getting very bad milege its a 2002 f150 5.4l im new to the furoms and am 17 and has no gas money need to fix this promblem asap

 

do you have a check engine light on?
Have you gotten someone to read the codes?
any other symptoms?

 

no check engine light codes were just checked it bogs when in 4th gear too

 

How many miles and what kind of maintenance have you done....

 

167,000 miles all new fluids all new coils new airfilter all new sensors.

 

There is not much to go on so don't keep putting on parts to trying and get lucky.
My 'guess' is you might find a fueling issue.
Look at the possibility of the fuel regulator diaphram leaking fuel into the intake manifold through the vacuum line, as a start.
A look with a good scanner at the short term fuel trim values may indicate a rich or lean condition that comes an goes.
On the other end of the spectrum, it could be an air leak form a rotted rubber fitting around the intake that changes with vibration and temperature.
Usually these kinds of issues, if present long enough, will set a code but you never know if it is marginal.
Find the issue first, then the repair. It will be a lot less expensive.
Good luck.

 

Taking a shot in the dark, but it could be the throttle position sensor. Commonly referred to as the TPS.

Some more info on whats going here would help. If its a problem related to the throttle body, or system/subsystem I probably have these parts leftover from my motor swap. would make you a killer deal on what you need.

And retarded as this might sound, Clean your MAF. or commonly known as the mass air flow sensor. It might be contaminated, causing your issues.

 

thanks everybody for the help im going to hang with my mechanic buddy tomorrow there is a rubber hose going from a black thing going into the throttle body and its rotted pretty bad maybe thats it what do you think?

 

Not saying you're having the same problems that I had but here's the thread I started and received advice from a few posters here, my problem ended up being a faulty PCM.

https://www.f150online.com/forums/19...t-threads.html

 

If the hoses to your IAC are rotted then sure that will cause idle and drivability issues.

I wouldnt rule out fuel pump if you're looking over the fueling system as well

 

If you are going to throw any more parts at it, change the fuel filter.

 

Fix that rubber hose going from a black thing going into the throttle body. We get a lot of those here. Surprised that no one suggested it.

WAG: rubber PCV connector at rear of TB.

 

i agree, change fuel filter, cheap and easy.