Mike's Workshop Manuals
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Jeep
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2017
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Compass Trailhawk
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Repair and Diagnosis
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Engine Performance
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2.4L - DTCS P0298 To P0688 - Mp
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Diagnosis And Testing
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P0440-General EVAP System Failure
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Set Condition
Set Condition
The Evap system was unable to achieve or maintain vacuum during the test period or the system was not able to close the ESIM Switch when vacuum was present.