Truck completely fell on its face

[the big blue bus]

what about when cold? mine is really bad when i first start it. it drives like crap once it shifts to second it bogs down real good. if you get on it real good it bout shuts off bogs down so muich it almost stalls thne will pick back up. im thinking it could be the fuel filter or cat maybe. weve had a few cars come into work acting the same and after replacing the clogged cats drive like a new car. mine rattles too reall bad sometimes

 

[semiguy409]

Well it is only when it is trying to crank over... once it actually starts (if it starts) it runs awesome! My Cats are brand new as of this summer so I would hope it wouldn't be them... lol. I think i might do the fuel filter idea, then the pump... if that don't work I have no idea what I am going to do...