LEMON Manuals: Even more car manuals for everyone
Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 78 (2.4L - DTCS P000A To P0441) >> Diagnosis And Testing >> P0440-General EVAP System Failure >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2014 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
EVAP PURGE SOLENOID VACUUM SUPPLY
EVAP PURGE HOSE/TUBE AND FRESH AIR FILTER OBSTRUCTION
GROUND CIRCUIT OPEN
ESIM ORIENTATION OR INSTALLED INCORRECTLY
ESIM SIGNAL CIRCUIT OPEN
EVAPORATIVE EMISSION LEAK
EVAPORATIVE SYSTEM INTEGRITY MONITOR SWITCH
EVAP PURGE SOLENOID
POWERTRAIN CONTROL MODULE (PCM)

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