Updated Fuel Filler Cap and Fuel Filler Tube This bulletin involves updating the upper fuel filler tube...
Jeep technical service bulletin 1400422 REVA for 2021 Jeep Wrangler.
- Bulletin number
- 1400422 REVA
- Component
- Exterior lighting
- Summary
- Updated Fuel Filler Cap and Fuel Filler Tube This bulletin involves updating the upper fuel filler tube and cap with improved versions. 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).The above condition is caused from an air leak through the fuel filler cap and fuel filler neck seal.
Owners of these vehicles have filed 6 complaints in the lights category.
Vehicles covered
- Jeep Wrangler 2021 2021
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