P244B GMC Code - Diesel Particulate Filter High Differential Pressure
Quick Answer
The exhaust differential pressure sensor measures the pressure difference across the inlet and outlet of the Diesel Particulate Filter (DPF). Common causes include Faulty Diesel Particulate Filter (DPF), Faulty Diesel Particulate Filter Exhaust Differential Pressure Sensor, Diesel Particulate Filter Exhaust Differential Pressure Sensor harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P244B GMC indicates Diesel Particulate Filter High Differential Pressure.
- Common causes
- Common causes include Faulty Diesel Particulate Filter (DPF), Faulty Diesel Particulate Filter Exhaust Differential Pressure Sensor, Diesel Particulate Filter Exhaust Differential Pressure Sensor harness is open or shorted.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P244B GMC Description
What are the Possible Causes of the DTC P244B GMC?
- Faulty Diesel Particulate Filter (DPF)
- Faulty Diesel Particulate Filter Exhaust Differential Pressure Sensor
- Diesel Particulate Filter Exhaust Differential Pressure Sensor harness is open or shorted
- Diesel Particulate Filter Exhaust Differential Pressure Sensor circuit poor electrical connection
How to Fix the DTC P244B GMC?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P244B GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P244B GMC Code
1. What are the common symptoms of OBDII code P244B GMC (Diesel Particulate Filter High Differential Pressure)?
The common symptoms of this code include reduced engine power, black smoke coming from the exhaust, and the check engine light illuminating on the dashboard.
2. What are the possible causes of OBDII code P244B GMC?
The potential causes of this code include a clogged diesel particulate filter (DPF), faulty DPF differential pressure sensor, issues with the exhaust system, or a malfunctioning electronic control module (ECM).
3. How can I diagnose the OBDII code P244B GMC?
Diagnosing this code typically involves using an OBDII scanner to retrieve the error code, inspecting the DPF for clogs or damage, testing the DPF differential pressure sensor, and checking the exhaust system for leaks or issues.
4. What repairs are commonly needed for OBDII code P244B GMC?
Common repairs for this code may include cleaning or replacing the diesel particulate filter, replacing the DPF differential pressure sensor, repairing any exhaust system leaks, or reprogramming the electronic control module.
5. Can I continue driving my vehicle with OBDII code P244B GMC?
It is not recommended to continue driving your vehicle with this code present, as it can lead to further damage to the engine or emissions system. It is best to address the issue promptly to prevent more severe problems.
6. How much does it typically cost to repair OBDII code P244B GMC?
The cost of repairing this code can vary depending on the specific cause of the issue, the labor rates in your area, and the cost of parts. It is advisable to consult with a mechanic for a more accurate estimate.
7. Are there any maintenance tips to prevent OBDII code P244B GMC from occurring?
To help prevent this code from occurring, it is essential to follow the manufacturer's recommended maintenance schedule, use high-quality diesel fuel, and drive your vehicle regularly at highway speeds to allow for proper DPF regeneration.
8. Can a DIY enthusiast repair OBDII code P244B GMC, or should I seek professional help?
While some aspects of diagnosing and repairing this code can be tackled by experienced DIY enthusiasts, it is recommended to seek professional help for more complex issues or if you are unsure about the proper repair procedures.
9. How long does it take to repair OBDII code P244B GMC?
The repair time for this code can vary depending on the extent of the issue and the specific repairs needed. Simple fixes like sensor replacements may take a couple of hours, while more involved repairs could take longer.
10. Will resetting the check engine light resolve OBDII code P244B GMC?
Simply resetting the check engine light will not resolve the underlying issue causing this code. It is crucial to diagnose the problem, make the necessary repairs, and clear the code properly to ensure the problem does not reoccur.
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