i have a 1994 dodge ram 1500 5.9 360 i just bought and it had a plug stuck in the head and the heads were cracked so i bought a different set of heads and put them on and its all back together and every thing is hooked up when i start it up cold it runs perfect and has all kinds of power but then after it warms up it acts up and like it wants to die and has no power and when u give it more gas it dies out even more could it be the fuel pump or what? thanks

 

I would check fuel pressure to be sure. Are you getting any codes when it dies? Check TPS.

 

it doesnt die it just acts like its going to die and the check engine light isnt on

 

Just because the CEL isn't on doesn't mean there aren't codes.

Sounds like an O2 sensor to me.

 

I wasl thinking after TPS, then O2, then IAC.

FSM can be found in DIY section. That may help as well.

 

well i took the truck out eariler and went to put sum gas in it and found out its got a crack in the fill tube the metal hose that goes into the rubber hose is cracked and was leaking out anyways i put 10$ in it and it ran great for probably 5 min driving around perfect i know 10 bucks in gas isnt much but i figured itd just die instead of acting up like that?