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Home >> Jeep >> 2009 >> Compass Sport, 2.0 A >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0353 To P0503 (Gas) >> P0456-EVAP System Small Leak >> Possible Causes

Possible Causes

Possible Causes 
EVAP PURGE SOLENOID VACUUM SUPPLY
EVAP PURGE HOSE/TUBE OBSTRUCTION
EVAP SYSTEM LEAK

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See  DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure  .