Hose identification

Dawgvet06

New member
Need a little help identifying a part by name. The check engine light has been steadily on my 01 TJ since I bought it from a family member last month. I have no idea how long it had been on before that. The Jeep has been running fine, and I used the key-turn method today to get the error code - P0455 - Evap Leak Monitor - Large leak detected. I checked the gas cap, fuel lines, etc., and everyting looks fine. I know the Duty Cycle Purge Valve can get stuck, and that's what I had planned on replacing, except that during my under the hood inspection I found a badly cracked hose that is in the same vicinity as the DCP valve. It's split at the proximal end and cracked badly at the distal end. Whether this is the problem or not, I don't know, but it needs to be replaced nonetheless. Can anyone identfiy this hose by name? My guess is that this is the culprit. I would like to be able to call the parts store and ask for the hose by name.

Many thanks,
Jim
 

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i am of no help here. just wanted to let you know your not being ignored
 
Did some searching, checked with a local O-Reilly's, finally ran the part number online. It's called the Leak Detection Pump Hose, and it runs for about $30 online. I'm going to call the dealership to see how much they want to charge for it. O-Reilly's did not have it.

Jim

Update: Jeep dealership can order it, $33. Getting it in tomorrow morning.
 
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Part # is 4854195AC

I have replaced it, disconnected the battery for 5 minutes to reset the computer, and the check engine light has been banished from my dashboard.
 
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It is my internet-karma duty to +1 this post. :) I have an '02 TJ that failed smog check with the exact same code: P0455 (gross leak). Took it to the shop because I didn't have time to debug myself (in hindsight, this was a mistake) and after spending SEVERAL HOURS with the vehicle and replacing the gas cap they were unable to determine root cause but were able to charge me enough in man-hours to get a waiver for the inspection. Spent about 5 minutes searching online and found several posts from folks with the same issue, including this one. Spent 10 seconds under the hood to find the culprit. Replacement hose will be here in the morning and cost $31 from AutoNation (Jeep dealer) in Seattle.

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What did we do before the internet? Thanks for the post!
 
That's lame that the shop couldn't find it.

I've never heard of spending enough money that you can skip emissions. Is that a local thing?
 

Might be. Here in Washington if you spend $150 or more at an "Authorized Emission Specialist" attempting to address the emission failure you can get a waiver on the inspection if you fail the test for the second time (Washington Vehicle Emission Check Program - FAQ see "Who can repair my vehicle if it fails its emission test?"). I just wish I had gone to the internet instead of the repair shop because I would have saved a good deal of money and time. Ah well, lesson learned.
 
Glad you got it fixed up, but I'm sorry for the hassle, too. The hose in my 01 was split almost exactly like yours. That's interesting about the emissions testing and the pass. I live in Michigan, and we don't have to have emissions testing here yet, though there's little doubt mine would have failed as well.

On an unrelated side note, I was in Seattle last summer. Beautiful city. Really enjoyed it.
 
Not sure how it works elsewhere but here in Washington if you take a vehicle with an OBD II interface to the emission station they just plug in and run an emission diagnostic report. I think just about anything starting with a P will cause a failure. I replaced the hose this weekend (final cost was $41 for the part, so a little more than I thought) and the check engine light hasn't been on since. Now I just need to replace the clockspring to get rid of the annoying airbag light. :)
 
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