Ford Code P0299 is a diagnostic trouble code (DTC) that indicates a problem with the turbocharger or supercharger under boost conditions. The code is triggered when the powertrain control module (PCM) detects that the control effort to sustain the desired boost pressure is 10% greater than the calibrated threshold. This code is accompanied by a system warning message and may result in a loss of power. Common causes of Ford Code P0299 include sticking turbocharger vanes, an air leak between the turbocharger and throttle, and a restriction of the charge air cooler (CAC). Diagnosis of this code involves examining the tubing for any obstructions, cracks, or incorrect fitting connections. Fortunately, several service bulletins are available to help with the diagnosis and repair process.
💥See also: Ford Code P24A2
Causes and Solutions for Ford Code P0299
| Causes | Solutions |
|---|---|
| Turbocharger vanes sticking | Check the condition and replace it if necessary. |
| Air leak between turbocharger and throttle | Inspect all connections for tightness and repair any leaks. |
| Charge air cooler (CAC) restriction | Clean the CAC and inspect for any obstructions. |
| Instrument cluster message center | Drive the vehicle until the system warning message has cleared. |
Sticking Turbocharger Vanes
Ford Code P0299 may be caused by sticking turbocharger vanes, which can lead to an under-boost condition. The turbocharger is responsible for compressing the air that enters the engine, and if the vanes are stuck, they will not be able to shorten the air as effectively. To diagnose this issue, the technician should check the condition of the vanes and replace them if necessary.
Air Leak Between Turbocharger and throttle
Another possible cause of Ford Code P0299 is an air leak between the turbocharger and the throttle. The technician should inspect all the connections for tightness and repair any leaks that are found. It is also important to check for any obstructions or incorrect fitting connections.
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Charge Air Cooler (CAC) Restriction
The charge air cooler (CAC) is responsible for cooling the air that enters the engine, and if it is restricted, it can lead to an under-boost condition. To diagnose this issue, the technician should clean and inspect the CAC for any obstructions.
Instrument Cluster Message Center
Sometimes, the instrument cluster message center may indicate a system warning message. Various issues, such as a bad connection between the turbocharger and the throttle or a restriction of the CAC can cause this. The technician should drive the vehicle to diagnose this issue until the system warning message has cleared.
Conclusion: Ford Code P0299 Diagnosis & Repair
Ford Code P0299 is a diagnostic trouble code (DTC) that indicates a problem with the turbocharger or supercharger under boost conditions. The code is triggered when the powertrain control module (PCM) detects that the control effort to sustain the desired boost pressure is 10% greater than the calibrated threshold. There are several common causes of Ford Code P0299, such as sticking turbocharger vanes, an air leak between the turbocharger and throttle, and a restriction of the charge air cooler (CAC). Fortunately, several service bulletins are available to help with the diagnosis and repair process of Ford Code P0299.
🎯Suggested article: Ford Code P2281
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