Cascadia shut off randomly and turns back on while driving on the road

[medseg2003]

Thank you rawze for responding, actually the fuel pump looks never been changed it still red color. Truck has 520k on it i look everywhere in the engine and under no leaks at all not even drop unless it leaks inside engine that something i will not know. .all those sensors you mention on ur tuneup videos been replaced i had about 80k miles on them now.like you said may be fuel pump or fuel injectors. I just had ultimate PM last week i don't think is fuel. filter either. We will see. thx again