P20E8 2014 GMC Sierra Code - Reductant Low Pressure
Quick Answer
The pressure sensor information is used by Reductant Control Module; this module manages the reductant pressure system driving the PWM signal to the pump (corresponding to a speed setpoint for the reductant pressure pump) in order to build the pressure in the reductant pressure pipeline after the system start-up. Common causes include Faulty Reductant Injector, Reductant Injector harness is open or shorted, Reductant Injector circuit poor electrical connection. 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
- P20E8 2014 GMC Sierra indicates Reductant Low Pressure.
- Common causes
- Common causes include Faulty Reductant Injector, Reductant Injector harness is open or shorted, Reductant Injector circuit poor electrical connection.
- 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 P20E8 2014 GMC Sierra Description
What are the Possible Causes of the DTC P20E8 2014 GMC Sierra?
- Faulty Reductant Injector
- Reductant Injector harness is open or shorted
- Reductant Injector circuit poor electrical connection
- Faulty Reductant Pump and Sensor Assembly
How to Fix the DTC P20E8 2014 GMC Sierra?
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 P20E8 2014 GMC Sierra 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.
Need more information about the P20E8 2014 GMC Sierra code?
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Frequently Asked Questions about P20E8 2014 GMC Sierra Code
1. What are the common symptoms of OBDII code P20E8 (Reductant Low Pressure) in a 2014 GMC Sierra?
The common symptoms of P20E8 may include the illumination of the Check Engine Light (CEL), reduced engine power, and potential exhaust emission issues.
2. What are the possible causes of OBDII code P20E8 in a 2014 GMC Sierra?
Possible causes of P20E8 include a faulty reductant pressure sensor, issues with the reductant pump, a clogged reductant tank, or a malfunctioning reductant injector.
3. How serious is OBDII code P20E8 in a 2014 GMC Sierra?
While P20E8 may not cause immediate drivability issues, it can lead to increased emissions and potential long-term engine problems if left unresolved. It is advisable to address this code promptly.
4. Can I continue driving my 2014 GMC Sierra with OBDII code P20E8 (Reductant Low Pressure)?
It is generally not recommended to drive the vehicle with an active P20E8 code, as it may lead to decreased engine performance and increased emissions. It is best to address the issue as soon as possible.
5. How can I diagnose OBDII code P20E8 in my 2014 GMC Sierra?
Diagnosing P20E8 typically involves using a diagnostic scanner to read the code, checking the reductant system components for any visible damage or leaks, and testing the reductant pressure sensor and pump for proper functionality.
6. What are some repair tips for fixing OBDII code P20E8 in a 2014 GMC Sierra?
Repair tips for P20E8 may include inspecting and cleaning the reductant tank, replacing a faulty reductant pressure sensor or pump, clearing any blockages in the reductant system, and ensuring proper reductant fluid levels.
7. Can a DIY enthusiast fix OBDII code P20E8 in a 2014 GMC Sierra?
While some aspects of addressing P20E8 may be tackled by experienced DIY enthusiasts, diagnosing and repairing reductant system issues may require specialized tools and expertise. It is recommended to consult a professional mechanic for accurate diagnosis and repair.
8. How much does it cost to repair OBDII code P20E8 in a 2014 GMC Sierra?
The cost of repairing P20E8 can vary depending on the underlying cause of the code, replacement parts needed, and labor costs. It is advisable to obtain quotes from reputable mechanics or dealerships for an accurate estimate.
9. Are there any recalls or technical service bulletins related to OBDII code P20E8 in a 2014 GMC Sierra?
It is recommended to check with GMC or authorized service centers for any recalls or technical service bulletins related to P20E8 in your specific vehicle model year to see if there are any related issues addressed by the manufacturer.
10. How can I prevent OBDII code P20E8 from recurring in my 2014 GMC Sierra?
To prevent the recurrence of P20E8, it is essential to maintain regular servicing of the reductant system components, use high-quality reductant fluid, and address any related warning signs promptly to ensure optimal performance and emissions compliance.
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