Ford NOx Sensor JK21-5L248-AF / SNS737 / A2C13610200-05 – Function, Issues & Replacement

 Ford NOx Sensor JK21-5L248-AF / SNS737 / A2C13610200-05 – Function, Issues &  Replacement

Introduction

Modern diesel engines, like those in Ford Transit and Tourneo Custom models, rely on advanced emission control systems to meet stringent environmental regulations. A pivotal component in this system is the NOx (Nitrogen Oxide) Sensor, specifically the JK21-5L248-AF / SNS737 / A2C13610200-05. This sensor monitors nitrogen oxide levels in the exhaust, ensuring optimal engine performance and compliance with emission standards.

In this article, we'll delve into the functionality of this sensor, common issues that may arise, and guidance on replacement. For those seeking reliable replacements, Automan Spare Parts offers genuine options to restore your vehicle's emission system to optimal performance.

Understanding the NOx Sensor

The NOx Sensor is integral to the Selective Catalytic Reduction (SCR) system in diesel engines. It detects the concentration of nitrogen oxides in the exhaust gases and communicates with the engine control unit (ECU) to adjust the amount of diesel exhaust fluid (DEF) injected, thereby reducing harmful emissions.

Key Functions:

• Emission Monitoring: Continuously measures NOx levels to ensure they remain within permissible limits.

• Engine Performance Optimization: Provides real-time data to the ECU for efficient combustion and fuel usage.

• Regulatory Compliance: Ensures the vehicle meets environmental standards by controlling NOx emissions. 

Common Issues with the NOx Sensor

Over time, the NOx sensor may experience wear or faults due to various factors:

1. Sensor Contamination: Exposure to soot, oil, or other contaminants can impair sensor accuracy.

2. Electrical Failures: Wiring issues or connector corrosion can disrupt sensor communication.

3. Software Glitches: Firmware issues may lead to inconsistent sensor readings.

4. Physical Damage: External impacts or extreme temperatures can damage the sensor.

Symptoms of a Faulty Sensor:

• Illuminated check engine light.

• Reduced engine performance or fuel efficiency.

• Increased emissions or failed emission tests.

• Error codes related to the emission system.

Replacing the NOx Sensor

Tools Needed:

• Wrench set

• Screwdrivers

• Diagnostic scanner (optional) 

Steps:

1. Safety First: Disconnect the vehicle's battery to prevent electrical shocks.

2. Locate the Sensor: Refer to the vehicle's manual to find the sensor's location, typically along the exhaust system.

3. Remove the Old Sensor: Unplug connectors and unscrew the sensor from its mounting.

4. Install the New Sensor: Secure the new sensor in place and reconnect all connectors.

5. Reconnect the Battery: Restore power and use a diagnostic scanner to clear any error codes.

Note: Always ensure the replacement sensor matches the original part numbers (JK21-5L248-AF / SNS737 / A2C13610200-05) for compatibility.

Why Choose Automan Spare Parts for Your Replacement Needs

Automan Spare Parts is a trusted supplier of genuine automotive components, ensuring quality and compatibility. By choosing us, you benefit from:

• Authentic Parts: We provide OEM parts, guaranteeing fit and function.

• Competitive Pricing: Affordable solutions without compromising quality.

• Expert Support: Our team offers guidance to ensure you select the right part.

• Fast Shipping: Prompt delivery to get your vehicle back on the road quickly.

Conclusion

The NOx Sensor plays a vital role in maintaining your Ford engine's performance and ensuring compliance with emission standards. Recognizing signs of failure and understanding the replacement process can save time and prevent further complications. For reliable replacements, trust Automan Spare Parts to provide genuine components that restore your vehicle's functionality.

Ready to replace your NOx Sensor? Visit Automan Spare Parts to find the right part for your Ford vehicle.