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p0455 monte carlo


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waylon83
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Jan 7, 2011, 1:47 AM

Post #1 of 4 (3434 views)
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p0455 monte carlo Sign In

2004
Chevy
Monte Carlo
3.8L
100K

I have been getting a P0455 code for a while. I keep clearing it, and it comes back within a couple of days. I have replaced the gas cap with a new one from the dealer and that didn't help. My gas mileage seems to be going down as well. What are the other possible causes and how can I check them?


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jan 7, 2011, 7:34 AM

Post #2 of 4 (3429 views)
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Re: p0455 monte carlo [In reply to] Sign In

You would need to get the system smoke tested to reveal where the leak is.




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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



gpanderson7631
New User

Jan 26, 2012, 6:39 AM

Post #3 of 4 (2591 views)
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Re: p0455 monte carlo [In reply to] Sign In

I am having the same problem with my 2004 Monte Carlo SS. Have you had car checked out yet?


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Jan 26, 2012, 6:48 AM

Post #4 of 4 (2587 views)
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Re: p0455 monte carlo [In reply to] Sign In

Whatever is leaking on his car isn't going to help you find your leak. If you have a question, you need to start a new question of your own.




~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.





p0455 monte carlo


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