OK guys heres the problem. The computer had been throwing a p0442 code, I double/ triple checked the gas cap. Well today its thowing a P0455 code. Any clue what might be the problem. BTW this is on a 2002 Ram 1500 2wheel drive w/ 4.7 liter engine with about 48000 miles.

 

crawl under the truck right behind the drivers seat, next to the frame you will the air pump and filter assembly. check the hoses, one of my was cracked right ahead of one of the bends. i electrical taped teh crack, and both codes went away.

 

OH MY GOD GUY! I HAVE THE SAME PROBLEM!!

I JUST BOUGHT A OBD|| reader today plugged it in :

P0442 Evaporative Emission Control System Leak Detected (small leak) 0.40

I also have a 2002 Dodge ram 1500 4.7L V8 , 2WD REg cab

CAN SOMEONE HELP ME TO with diagram or picture


ur other code is P0455 EVAP Emission Control System Leak (Large) Im not getting that though thank god

 

brewcity, I crawled under the truck and noticed that one of the hoses had cracks in it. it was a small hose with a 90 degree bend, the hose comes out of a small round canister and then connects with a series of other hoses that go to the front of the truck. Hose has about a 1/2"ID. any clue if this is a delaer only item since its pre-formed?

 

yes, get it from the dealer, but for now, just elctrical tape it... its easier and will hold for a while

 

i used obd2 reader erased code yesterday morning hasnt come back yet waiting till it comes up again.

 

I know this is an old post now, but I would like to say huge thanks to 'brewcity'. I've had P0440 P0441 & P0442 error codes last two months, without the local dealership finding anything and just resetting the cpu.
Found this post, had a look where you stated - BINGO, pipe cracked right the way through on the bend as you stated.
While having a service at a (different) dodge dealership today, they couldn't find anything, soI ask them to get back up, andI pointed it out, they was like 'missed that, yep that would cause it' and tapped it up for now, and a new pipe is on order.

Thanks again, driving around with that malfunction light on last 2 months getting on my nerves just a little [&:]

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