P0457
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JK Enthusiast
Joined: Aug 2011
Posts: 299
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From: michigan
P0457
Sorry, I know this has been discussed before but do not have time to search right now. Where is the most likely place to find the vacuum leaks to fix the P0456 and P0457 codes. Already changed the gas cap. Thanks for any help. 2011 JKU.
Last edited by airforce26yrs; Mar 17, 2015 at 08:00 PM.
JK Jedi Master
Joined: Feb 2008
Posts: 12,907
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From: Maine
Check the vacuum line from the intake manifold to the evap purge solenoid. Sometimes it gets too close to the EGR pipe, and melts.
Also, did you clear the codes? If not, have you driven it enough times for it to turn off the light if the cap fixed it?
Also, did you clear the codes? If not, have you driven it enough times for it to turn off the light if the cap fixed it?
Thread Starter
JK Enthusiast
Joined: Aug 2011
Posts: 299
Likes: 0
From: michigan
Replied on Jeepforum.com. Thanks