# Service bulletin 14\-006\-21

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.

- Type: Service bulletin
- NHTSA id: 10218578
- Published by NHTSA: 2022\-08\-22
- Manufacturer's number: 14\-006\-21
- Manufacturer's date: 2021\-08\-14
- NHTSA component: FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS; FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:INJECTORS

## NHTSA's 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.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10218578-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10218578-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Fuel system, Fuel injection

## Trouble codes named

P0300

## Vehicles listed

- 2021 DODGE DURANGO
- 2021 JEEP GRAND CHEROKEE

## Other bulletins for the same vehicles and component

- [9004493](/bulletins/10228974.md), 2023-01-09, Service bulletin: FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL. RAIL, Fuel Prior to replacing this compoenent, please contact one of the following prior to disassembly: FCA Redacted Content If no response in 15 minutes, proceed with repair.

JSON: [/v1/bulletins/10218578](/v1/bulletins/10218578)

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