Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
Your car's exhaust isn't getting hot enough to clean out a special filter that traps dirty stuff. It's like trying to bake cookies in an oven that's not hot enough.
The diesel particulate filter (DPF) requires high temperatures to burn off soot. If the exhaust temperature is too low, regeneration cannot occur, leading to potential clogging.
The DPF is designed to capture soot from the engine's exhaust gases. To clean itself, it needs to reach a high temperature to burn off the soot. Code P244C indicates that the exhaust temperature is not reaching the required level for this process, specifically on Bank 1, which is the side of the engine containing cylinder 1.
• Check engine light is on
• Reduced engine performance
• Increased fuel consumption
• Faulty exhaust temperature sensor
• Exhaust leaks
• Faulty DPF pressure sensor
DPF: Diesel Particulate Filter
Regeneration: The process of burning off soot in the DPF
• Check for exhaust leaks
• Test the exhaust temperature sensor
• Inspect the DPF for blockages
• Replace faulty exhaust temperature sensor
• Repair any exhaust leaks
• Clean or replace the DPF
• OBD-II scanner
• Multimeter
• Exhaust backpressure tester
$200 - $1000
Moderate
• Ford F-250
• Chevrolet Silverado
• Dodge Ram 2500
• Regularly drive at highway speeds to aid DPF regeneration
• Keep up with regular vehicle maintenance
• Use high-quality fuel
Engine Performance
• Avoid short trips that prevent the engine from reaching full operating temperature
• Consider a forced regeneration at a service center
Check with your vehicle manufacturer for warranty coverage on emissions-related components.
This code has become more common with the introduction of stricter emissions standards and the use of DPFs in diesel engines.
Moderate – While not immediately critical, prolonged driving with this issue can lead to more severe engine problems.
Ignoring emissions-related issues can lead to failing emissions tests and potential fines.
• Engine at normal operating temperature
• Vehicle driven at highway speeds
The DPF is located in the exhaust system, usually near the engine or under the vehicle.
Q: Can I drive with a P244C code?
A: It's possible to drive for short distances, but prolonged driving can cause further damage.
Q: How do I clear a P244C code?
A: Address the underlying issue and use an OBD-II scanner to clear the code.
Budget · Bluetooth scanner
An app-based scanner with repair reports and enhanced system diagnostics on supported vehicles.
Helpful when live data and repair-report guidance can narrow down a drivability issue.
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Specialty · Fuel pressure tester
Helpful for no-start, lean, rich, injector, and fuel-delivery diagnosis.
Useful for checking whether fuel delivery is contributing to the fault.
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Specialty · Compression tester
Useful when misfire, mechanical condition, or low-cylinder-pressure problems are suspected.
Helpful when you need to rule out low compression or mechanical engine problems.
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