Code 455 and 442 -EVAP Emission - JeepForum.com
 
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post #1 of 3 Old 02-23-2018, 11:05 AM Thread Starter
kirkpal1
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Code 455 and 442 -EVAP Emission

Any suggestions where to start other than gas cap, been there done that...

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post #2 of 3 Old 06-17-2019, 10:24 PM
Eds97ZJ
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I have these codes. Did you fix it? What were the problems? Thanks

1997 Jeep Grand Cherokee LMTD Loaded 5.2 V8 Q-Trac 4X4
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post #3 of 3 Old 06-18-2019, 01:11 AM
mukluk
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P0442-EVAP LEAK MONITOR MEDIUM LEAK DETECTED
P0455-EVAP LEAK MONITOR LARGE LEAK DETECTED

Can be caused by a loose or defective gas cap, or a leak in any of your fuel evaporative/vent hoses and fittings.

2000 TJ SE
2005 LJ Rubicon
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