When it comes to the Jeep P1404 Code, it is a signal of a problem with the Cooled Exhaust Gas Recirculation (EGR) Valve Assembly. This assembly contains an electric Direct Current (DC) motor and a gearbox and the full range of travel of the shaft is approximately 5.0 mm from a fully closed to fully open position. The PCM monitors the temperature and current draw of the DC motor inside EGR Valve and will adjust the duty cycle to prevent the EGR Valve windings from overheating. It is important to understand the cause of the P1404 code and the best way to find out is to look at the related Service Bulletins available.
Causes and Solutions to the Jeep P1404 Code
| Causes | Solutions |
|——- | ——— |
| Carbon Deposits in EGR Valve | Clean EGR Valve & ports |
| EGR Valve Assembly Sticking/Dragging | Replace EGR Valve Assembly |
| EGR Valve Assembly | Reinstall EGR Valve || PCM Failed | Replace PCM |
Carbon Deposits in EGR Valve
The Jeep P1404 Code can be caused by carbon deposits in the EGR Valve. This will cause the EGR Valve to stick or drag and prevent the PCM from controlling the duty cycle of the EGR Valve. To fix this issue, the EGR Valve and ports should be cleaned to remove the carbon deposits. This can be done using a special cleaner meant for this purpose.
EGR Valve Assembly Sticking/Dragging
The Jeep P1404 Code can also be caused by the EGR Valve Assembly sticking or dragging. If the EGR Valve Assembly is sticking or dragging, it must be replaced. This can be done by a professional mechanic who is experienced in replacing these parts.
EGR Valve Assembly
In some cases, the Jeep P1404 Code can be caused by the EGR Valve Assembly being incorrectly installed. If this is the case, the EGR Valve should be reinstalled correctly. This can be done by a professional mechanic who is experienced in installing these parts.
PCM Failed
The Jeep P1404 Code can also be caused by the PCM failing. If this is the case, the PCM should be replaced. This can be done by a professional mechanic who is experienced in replacing these parts.
Conclusion
The Jeep P1404 Code can be caused by a number of different issues. The most common causes are carbon deposits in the EGR Valve, an EGR Valve Assembly sticking or dragging, an incorrectly installed EGR Valve, or a failed PCM. To fix these issues, the EGR Valve and ports should be cleaned, the EGR Valve Assembly should be replaced, the EGR Valve should be reinstalled correctly, or the PCM should be replaced. It is important to understand the cause of the Jeep P1404 Code and the best way to find out is to look at the related Service Bulletins available. By following the solutions outlined above, you should be able to fix the Jeep P1404 Code and get your vehicle running again.
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