Exhaust leak engine trouble light

The technician who hooked up the diagnostic reader did not tell me what the code number was.

The exact code number is p0456. I am not physically able to do a lot myself. I am a 100% disabled, combat wounded, Vietnam veteran with limited mobility. I have to depend on others for assistance.

I would greatly appreciate the vacuum diagrams so I can see the parts that make up the system. While I trust my mechanic, who I have used in the past, I like to take your comments and suggestions with me when I go to take the Wrangler to him. If I can afford the parts that make up the entire EVAP system, I would probably have him change the system out rather than him replacing part by part until the problem is remedied.

The last time you helped me was when I had the Park-No Start condition. Jeep wanted to charge me an arm and a leg for a part that was not necessary. The problem was the Jeep's four year old battery! I really enjoy consulting you guys for your expert assistance.

I live in Central New Mexico. Our average annual humidity is 16%. Thanks. Come payday and I will take my Jeep to the mechanic and show him what you guys have suggested. The Jeep is our "baby", and we' have driven it through tornadoes and other horrible weather only to come out unscathed! We feel helpless when "baby" cries and we cannot understand its sobs! LOL

Finally got the smoke test performed on my Wrangler. The test revealed that the leak associated with code 0456 was at the rollover valve on top of the gas tank. I cannot find a replacement rollover valve, primarily because I don't know where to look (I'm old!) The mechanic told me that, when he touched the hose fitting, the valve broke off. I must assume he meant one of the three fitting arms of the molded roller valve where the hose attaches(?) He told me he does not know the name of the part nor where to find a diagram of it. He's not around to ask since this is elk hunting season in New Mexico! I went to the Jeep dealer in my home town, who is known for ripping off customers, and asked the Service Manager the name of the part. That is where I was told that it is the rollover valve. Where can I get a replacement for my 2010 Wrangler Unlimited Mountain?

I like your term: "stealership"! I checked with a Jeep stealership and was told that the rollover valves are/were permanently glued in place at the manufacturer, hence, there is no part number for them. I was quoted over $800 without any mounting hardware or labor! I'm retired and am on a fixed budget. I cannot do that amount without severly hampering my household budget! I The Chilton Jeep Wrangler 1987-11 Repair Manual shows the gas tank with the two rollover valves. Does that mean that any model of the Jeep Wranger between (and including) 1987-2011 has the same gas tank? If so, I'll research if there are any used parts places in Albuquerque to try and locate one.

Thanks, Steve. I guess I'll go on a parts hunt after the Holiday Season.

I really don't know if it was a hose nipple or what! The mechanic was leaving on an elk hunt so I didn't get any further info. I did start looking for the rollover valve but couldn't find it as a standalone part. I'm told that it's on top of the fuel tank housing, inside the right rear fender well.