The OBD code P0403 for Ford indicates an issue with the Exhaust Gas Recirculation (EGR) control circuit.
Symptoms include the Engine Light ON, engine hesitation.
The cause could be a faulty EGR volume control solenoid valve or related wiring issues.
It’s a moderate issue that may affect vehicle performance.
To fix, inspect and repair the EGR volume control solenoid valve and its circuitry.
| Repair Importance Level | 6.67 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 6.67 (Out of 10) |
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Symptoms of the Ford p0403 OBD Code
The vehicle may experience poor engine performance and increased fuel consumption with fault code P0403.
- Symptoms: Engine Light ON.
- Engine hesitation.
Causes of the Ford p0403 OBD Code
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Fault code P0403 in Ford vehicles is typically triggered by issues related to the Exhaust Gas Recirculation (EGR) system.
- P0403 can be caused by a faulty EGR volume control solenoid valve.
- A malfunctioning EGR volume control solenoid valve harness that is open or shorted.
- An EGR volume control solenoid valve circuit with poor electrical connection.
- A faulty EGR temperature sensor and circuit.
Fixing Ford Error Code p0403 Step By Step
To resolve Ford P0403, inspect and clean the EGR valve and passages for carbon buildup.
- To fix Ford OBDII code P0403, start by reviewing the possible causes related to the Exhaust Gas Recirculation (EGR) system.
- Visually inspect the EGR valve and its wiring harness for any signs of damage or corrosion.
- Check the EGR valve position sensor for proper operation and wiring integrity.
- Clean any carbon buildup in the EGR system components.
- Test the EGR valve using a scan tool to ensure it opens and closes properly.
- Replace the EGR valve if it fails the test.
- Reset the vehicle’s Engine Control Module (ECM) to clear the fault code and monitor the system for proper operation.
Cost Of Fixing Ford p0403 Fault Code
Diagnosing and repairing fault code P0403 on a Ford typically involves addressing the EGR system.
The cost to diagnose and fix the Ford OBD code P0403 typically ranges from $75 to $150 per hour for labor rates.
With an estimated repair time of 1. 0 hour, the total cost can be around $75 to $150, depending on shop rates and the complexity of the repair.
Details of the Ford p0403 OBD Code
The Ford P0403 code indicates an issue with the Exhaust Gas Recirculation (EGR) circuit.
OBD code P0403 for Ford vehicles indicates an issue with the Exhaust Gas Recirculation (EGR) Control Circuit.
This code is triggered when the Engine Control Module (ECM) detects that the voltage signal from the EGR position sensor is out of the expected range.
The ECM monitors this signal to ensure proper EGR valve operation and emission control.
If the voltage signal deviates from the specified parameters, the P0403 trouble code is set.
This code typically points to a fault in the EGR valve position sensor or its wiring.
Mechanic’s Tech Notes
P0403 indicates an issue with the Exhaust Gas Recirculation (EGR) circuit in a Ford vehicle.
To diagnose and fix OBDII code P0403 in a Ford vehicle, start by visually inspecting the EGR system components for any signs of damage or blockages.
Use a voltmeter to check the EGR position sensor’s voltage signal while the engine is running.
Ensure the sensor is responding correctly to changes in the EGR valve position.
Test the EGR valve control solenoid for proper operation using a scan tool to command it on and off.
If all components check out, consider checking the wiring harness for any shorts or opens.
Clear the code and retest the system to verify the repair.
FAQ
Common symptoms of OBD code P0403 in a Ford vehicle include Engine Light ON, engine hesitation. Causes may be faulty EGR volume control solenoid valve or related wiring issues.
The typical cause of OBD code P0403 in Ford vehicles is a faulty EGR volume control solenoid valve or related wiring issues. Inspect and repair as needed.
Diagnose and repair OBD code P0403 in a Ford: Symptoms include Engine Light ON, engine hesitation. Check EGR volume control solenoid valve, harness, and connections for faults.
Wrap Up
If your Ford is displaying OBD code P0403 and experiencing poor engine performance, stalling, or rough idling, it may be caused by a faulty Exhaust Gas Recirculation (EGR) sensor, clogged EGR valve, wiring issues, or carbon buildup in the EGR system.
To address Ford OBD code P0403, check the EGR valve for proper operation, inspect the EGR sensor and wiring for any damage or corrosion, clean out any carbon deposits in the EGR system, and ensure proper connection of all related components.
