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Home >> Jeep >> 2024 >> Grand Cherokee Summit >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 74 (2.0L - DTCS P04EC To P051D) >> DTC Troubleshooting >> P04EC-EVAP System Large Leak Detected - Fuel Tank Side >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
Possible Causes
LARGE LEAK FROM THE HOSES/LINES ON THE FUEL TANK SIDE OF THE EVAPORATIVE SYSTEM
LARGE LEAK AT THE CAPLESS FUEL FILLER ASSEMBLY OR FILLER NECK
LARGE LEAK AT THE FUEL CAP AND/OR FUEL CAP TETHER PINCHED AT THE CAP SEAL
LARGE LEAK AT THE FUEL PUMP ASSEMBLY OR FUEL TANK

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .