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Jeep
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2003
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Wrangler SE, Automatic
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - Self-Diagnostics
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Diagnostic Tests
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DTC P0442: EVAP Leak Monitor Medium Leak Detected, DTC P0455: EVAP Leak Monitor Large Leak Detected Or DTC P0456: EVAP Leak Monitor Small Leak Detected
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Possible Causes
Possible Causes
EVAP Leak Detection
EVAP Purge Solenoid Leaks/Stuck Open
Intermittent LDP Monitor Failure