Stubborn CEL 2004 Jeep Grand Cherokee Overland

Question

So, my wife's 2004 WJ keeps getting a P0456 code every time she gets gas. Sometimes it goes away on it's own, sometimes I have to clear it. It reads very small evaporator leak. I've replaced the gas cap twice. Is there anything else it could be? Maybe a vacuum line I'm unaware of? Thanks!

Answer 1

See if you have a torn gas intake hose. Also check the purge valve, if its broken, damaged it could cause this. Its easy just time consuming. Hope that helps

Comments

Gas intake from the filler to the tank? And wouldn't the purge valve throw it's own separate code? Or at least something other than "very small leak?"