i need help figuring out what is wrong with my truck it only has 81,000 miles on it and it's always been maintained. but anyway i with start driving 5 mins or so and it will start to bogg down and if you don't give it alot of gas it will sound like popping from the engine compartment. ive replace fuel pump,fuel filter spark plugs clean the injectors. if someone could give me some ideas that would be awesome.

 

Read the stickied plenum thread https://dodgeforum.com/forum/2nd-gen-ram/286307-end-all-be-all-plenum-thread.html.

Sounds like your cat is clogged from a blown plenum. That thread will give you more info than you want but is most likely your problem.

EDIT: Even if your cat doesn't rattle it can still be bad. The oil clogs the passages and reduces flow. Pull the pre-cat O2 sensor out of the pipe, and see if the truck runs/drives better that way.