P0304 on the 2011 Chrysler 300
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
Nobody has written a description of this code yet.
| 0900214 | 2023-01-17. Service bulletin. MIL Illumination: P0300, P0302, P0304 or P0306 (X56 Warranty Extension) |
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| 0900214a | 2023-01-17. Service bulletin. MIL Illumination: P0300, P0302, P0304 or P0306 (X56 Warranty Extension) This bulletin involves checking for excessive cylinder leakage and replacing the cylinder head if necessary. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find that any the following Diagnostic Trouble Codes have been set: P0300- Multiple Cylinder Misfire P0302- Cylinder 2 Misfire P0304- Cylinder 4 Misfire P0306- Cylinder 6 Misfire |
| 0900214REVB | 2022-09-26. Service bulletin. MIL Illumination: P0300, P0302, P0304 or P0306 (X56 Warranty Extension) This bulletin involves checking for excessive cylinder leakage and replacing the cylinder head if necessary. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find that any the following Diagnostic Trouble Codes have been set: P0300- Multiple Cylinder Misfire P0302- Cylinder 2 Misfire P0304- Cylinder 4 Misfire P0306- Cylinder 6 Misfire |
| 09-002-14 REV. B | 2018-06-11. Service bulletin. MIL Illumination: P0300, P0302, P0304 or P0306 (X56 Warranty Extension) This bulletin involves checking for excessive cylinder leakage and replacing the cylinder head if necessary. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find that any the following Diagnostic Trouble Codes have been set: P0300- Multiple Cylinder Misfire P0302- Cylinder 2 Misfire P0304- Cylinder 4 Misfire P0306- Cylinder 6 Misfire |
| 09-002-14 REV. A | 2018-06-11. Service bulletin. MIL Illumination: P0300, P0302, P0304 or P0306 (X56 Warranty Extension) This bulletin involves checking for excessive cylinder leakage and replacing the cylinder head if necessary. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find that any the following Diagnostic Trouble Codes have been set: ? P0300- Multiple Cylinder Misfire ? P0302- Cylinder 2 Misfire ? P0304- Cylinder 4 Misfire ? P0306- Cylinder 6 Misfire |
| 09-002-14 | 2018-06-11. Service bulletin. MIL Illumination: P0300, P0302, P0304 or P0306 (X56 Warranty Extension) This bulletin involves checking for excessive cylinder leakage and replacing the cylinder head if necessary. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find that the following Diagnostic Trouble Codes have been set: ? P0300- Multiple Cylinder Misfire ? P0302- Cylinder 2 Misfire ? P0304- Cylinder 4 Misfire ? P0306- Cylinder 6 Misfire |
6 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.