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Service bulletin 1400423

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10242781
Published by NHTSA2023-09-25
Manufacturer's number1400423
Manufacturer's date2023-07-01
NHTSA componentFUEL SYSTEM, GASOLINE

NHTSA's summary

Fuel Filler Cap Tether Too Long Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following Diagnostic Trouble Codes (DTCs) have been set: ?P04EC - EVAP System Large Leak Detected - Fuel Tank Side. ? P04EE - EVAP System Very Small Leak Detected - Fuel Tank Side. Customers may also comment the following: ? There is a "Check Gas Cap" message in the Instrument Panel Cluster (IPC). NOTE: The above condition is caused from an air leak through the fuel filler cap and fuel filler neck seal, because the fuel filler cap tether is caught between both. This bulletin involves removing the fuel filler cap tether and replacing it with a shorter tether.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Fuel system

Trouble codes named

P04EC, P04EE

Vehicles listed
JEEP WRANGLER2021, 2022, 2023

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
20232182023-04-13. Fuel System
23V2630002023-04-13. FUEL SYSTEM, DIESEL:DELIVERY:FUEL PUMP
22V7670002022-10-13. ENGINE; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
9100833 REV12026-07-18. Service bulletin. Fuel Delivery Module Before replacing the fuel module for DTCs P0461 and P062A and other not start, long crank, fuel gauge accuracy and drivability issues, the technician should disconnect the electrical connector at the pump and perform a visual inspection of the connector for and bent, spread, or pushed out terminals. Repair any issues found. Reconnect the plug and perform a push pull push to ensure the connector is fully installed. Then perform 3 keys cycles and listen to hear if the fuel pump is operational. If the fuel pump is heard that indicates that everything is operating correctly. If the pump is heard replacement is not necessary, any replacement will function in the same way.
91008332026-07-02. Service bulletin. Fuel Delivery Module Before replacing the fuel module for DTCs P0461 and P062A and other not start, long crank, fuel gauge accuracy and drivability issues, the technician should disconnect the electrical connector at the pump and perform a visual inspection of the connector for and bent, spread, or pushed out terminals. Repair any issues found. Reconnect the plug and perform a push pull push to ensure the connector is fully installed. Then perform 3 keys cycles and listen to hear if the fuel pump is operational. If the fuel pump is heard that indicates that everything is operating correctly. If the pump is heard replacement is not necessary, any replacement will function in the same way.
14-010-25 REV. C2025-07-02. Service bulletin. Frequent Repairs Of Fuel System Components Such As Fuel Filters Numerous Stellantis vehicles having fuel line components replaced such as diesel fuel filters. Occasionally, components are replaced before their standard life expectancy or when not contaminated with debris.
14-010-25 REV. B2025-06-10. Service bulletin. "Frequent Repairs Of Fuel System Components Such As Fuel Filters Numerous Stellantis vehicles having fuel line components replaced such as fuel filter. Occasionally, components are replaced before their standard life expectancy or when not contaminated with debris "
14-012-252025-06-02. Service bulletin. "Unable To Refuel Vehicle Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must exhibit/set the following Diagnostic Trouble Code (DTC): ● P2450 - Fuel Tank Isolation Valve Stuck Open. Customers may also comment on one or more of the following: ● Unable to open the fuel door. ● Difficult to refuel vehicle. This bulletin involves replacing the fuel vapor valve."
14-010-25 REV. A2025-06-02. Service bulletin. "Frequent Repairs Of Fuel Line Components Such As Fuel Filters Numerous Stellantis vehicles having fuel line components replaced such as fuel filter. Occasionally, components are replaced before their standard life expectancy or when not contaminated with debri "
1050382025-05-20. Service bulletin. TUBE - FUEL INJECTOR SUPPLY & GASKET - NONE
1050392025-05-16. Service bulletin. TUBE - FUEL INJECTOR SUPPLY & GASKET - NONE
1036162025-03-19. Service bulletin. TAPPET KIT - FUEL DOOR
1037772025-03-19. Service bulletin. TAPPET KIT - FUEL DOOR