Code P0455

OLGALUCIA

MEMBER
2004 MITSUBISHI ENDEAVOR
131,000 MILES

The car won't stat after feeling up. It's showing code P0455 the mechanic change the gas cup and the rear and front valves, he changed spark #? 2 and 6. The problem started after he did the tune up

Saturday, May 25th, 2013 AT 12:49 PM

5 Replies

KHLOW2008

MECHANIC
41,814 POSTS

Is code P0455 still present? That is a fault within the EVAP system and could be the gas cap, but it could so be due to others.

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Saturday, May 25th, 2013 AT 10:10 PM

ROBORRISON

MEMBER
1 POST

I dont know if you found your problem but my 05 endeavor did the same thing after changing the spark plugs. Any time you took the gas cap off the car was hard to start the first time and as long as you did not remove the cap it would start fine. I then got a EVAP code PO455and after checking all of the hoses I had missed connecting one of the hoses coming from the rear valve cover. I assume this is part of the evap system and my car then started fine and evap code cleared.

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Sunday, August 11th, 2013 AT 9:53 AM

KHLOW2008

MECHANIC
41,814 POSTS

Thanks for the input.

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Sunday, August 11th, 2013 AT 5:28 PM

JORGE_23_G

MEMBER
1 POST

Roborrison, I'm facing the exact same problem, last month the mechanic did the tune-up, since then every time I fill it, I have problems to start it plus the P0455 code shows again almost immediately (1 or 2 days after I clear the code) wondering if you can provide more details about what to look for in case the mechanic miss install something.

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Wednesday, January 21st, 2015 AT 9:27 PM

KHLOW2008