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August 14, 2021 Service bulletin

Incorrect Fuel Injectors

Jeep technical service bulletin 14-006-21 for 2021 Jeep Grand Cherokee and 2021 Dodge Durango.

Bulletin number
14-006-21
Component
Fuel system, diesel: fuel injection system: injectors
Summary
Incorrect Fuel Injectors This bulletin involves replacing all eight fuel injectors. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find of the following Diagnostic Trouble Codes (DTCs) have been set: P0300 - Multiple Cylinder Misfire. The customer may also experience the following:Poor engine performance.

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