Ford P1247 Code is a diagnostic trouble code (DTC) that is used to indicate a problem with the turbocharger boost pressure in Ford vehicles. The code is triggered when the boost pressure is lower than the desired pressure by more than a calibrated value for a period of time. This issue can cause the vehicle to operate in derate mode and experience a loss of power. To diagnose this issue, technicians must check for cracks and incorrect fittings between the turbocharger and intake manifold. The causes of this issue may include intake air system leaks, a VGT (variable geometry turbocharger) that is slow to respond, and stuck VGT vanes. It is important to note that after repair, the system warning message may still be displayed in the instrument cluster message center, and the vehicle should be driven until the warning message has cleared.
Causes and Solutions for Ford P1247 Code
| Cause | Solution |
|---|---|
| Intake air system leaks between the turbocharger and the intake manifold | Check tubing and components for cracks and incorrect fitting connections between the turbocharger and the intake manifold. |
| Variable geometry turbocharger (VGT) slow to respond | Replace VGT as needed. |
| VGT vanes stuck open | Clean VGT vanes and replace as needed. |
| System warning message still displayed in instrument cluster message center | Drive the vehicle until the system warning message has cleared from the instrument cluster message center. |
Intake Air System Leaks
When diagnosing the Ford P1247 Code, one of the most common causes is an intake air system leak between the turbocharger and the intake manifold. In this case, technicians must check the tubing and components for cracks and incorrect fitting connections between the turbocharger and the intake manifold. If a leak is found, it must be repaired and the system should be checked again.
VGT Slow to Respond
Another common cause of the Ford P1247 Code is a Variable Geometry Turbocharger (VGT) that is slow to respond. In this case, the VGT must be replaced. Technicians should also check for any other codes that may be stored in the system and repair as needed.
VGT Vane Stuck Open
A third cause of the Ford P1247 Code is a VGT vane that is stuck open. In this case, the VGT vanes must be cleaned and replaced as needed. Technicians should also check for any other codes that may be stored in the system and repair as needed.
System Warning Message Still Displayed
After the repair of the Ford P1247 Code, it is important to note that the system warning message may still be displayed in the instrument cluster message center. In this case, the vehicle should be driven until the warning message has cleared from the instrument cluster message center.
Conclusion
The Ford P1247 Code is a diagnostic trouble code (DTC) that is used to indicate a problem with the turbocharger boost pressure in Ford vehicles. The code is triggered when the boost pressure is lower than the desired pressure by more than a calibrated value for a period of time. This issue can cause the vehicle to operate in derate mode and experience a loss of power. The causes of this issue may include intake air system leaks, a VGT (variable geometry turbocharger) that is slow to respond, and stuck VGT vanes. To diagnose and repair the Ford P1247 Code, technicians must check for cracks and incorrect fittings between the turbocharger and intake manifold, replace the VGT as needed, clean the VGT vanes, and drive the vehicle until the system warning message has cleared from the instrument cluster message center.
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