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Home >> Chrysler >> 2007 >> 300 Base >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0325 To P0456 >> P0452-EVAP Pressure Switch Stuck Closed >> Possible Causes

Possible Causes

Possible Causes 
INTERMITTENT DTC
EVAP PURGE HOSE/TUBE OBSTRUCTION
(K107) ESM SIGNAL CIRCUIT SHORTED TO GROUND
(K52) EVAP PURGE CONTROL CIRCUIT SHORTED TO GROUND
EVAPORATIVE SYSTEM MONITOR SWITCH
EVAP PURGE SOLENOID
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to *PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .