I took my 01 RAM 1500 to autozone yesterday after the check engine light randomly came on.
They gave me the code P0442 with the definition "(evaporative emission system) small leak/no flow condition" with the possible causes being "Loose fuel cap, EVAP canister or hose cranked-not connected, Purge or vent solenoid defective, or vacuum leak at engine."

I know it isn't a loose gas cap, I don't think dodges of that age have that kind of technology.

I popped the hood and checked the PVC hoses and the one on the passenger side crank case is not seated well and can move it and im sure if i pull hard enough, it will come out. but i dont want to try it.

Can someone tell me what this part is and the specific way to replace it.

 

Sorry for the overly large pictures guys...

 

Crankcase breather. I'm fairly certain you just pull it out, pop the new one back in. i don't Think that would set your code however..could be wrong though. Does the truck idle rough?Look at the vac lines connected to the intake manifold see if ones loose, cracked, etc. And take a look at the purge solenoid and evap canister and hoses over there (on the pass. side fender under hood.)

 

i'm not seeing your pics??

but see if this helps.
https://dodgeforum.com/forum/2nd-gen...-leak-fix.html