P140F 2016 GMC Sierra Code - Exhaust Gas Recirculation Motor Current Performance
Quick Answer
The Engine Control Module (ECM) supplies the Exhaust Gas Recirculation (EGR) valve with a 5 V reference circuit, a low reference circuit, an H-bridge motor directional control circuit, and a signal circuit. Common causes include Faulty Exhaust Gas Recirculation (EGR) Valve, Exhaust Gas Recirculation Valve harness is open or shorted, Exhaust Gas Recirculation Valve 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
- P140F 2016 GMC Sierra indicates Exhaust Gas Recirculation Motor Current Performance.
- Common causes
- Common causes include Faulty Exhaust Gas Recirculation (EGR) Valve, Exhaust Gas Recirculation Valve harness is open or shorted, Exhaust Gas Recirculation Valve 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 P140F 2016 GMC Sierra Description
What are the Possible Causes of the DTC P140F 2016 GMC Sierra?
- Faulty Exhaust Gas Recirculation (EGR) Valve
- Exhaust Gas Recirculation Valve harness is open or shorted
- Exhaust Gas Recirculation Valve circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P140F 2016 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 P140F 2016 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.
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Frequently Asked Questions about P140F 2016 GMC Sierra Code
1. What does the OBDII code P140F mean on a 2016 GMC Sierra?
The P140F code indicates an issue with the Exhaust Gas Recirculation (EGR) motor current performance, meaning the EGR system may not be operating as expected.
2. What are the symptoms of the P140F code in a 2016 GMC Sierra?
Symptoms may include an illuminated check engine light, reduced engine performance, rough idling, poor fuel economy, or increased emissions.
3. What causes the P140F code on a 2016 GMC Sierra?
Common causes include a malfunctioning EGR motor, carbon buildup in the EGR valve or passages, wiring issues, or a faulty EGR position sensor.
4. Can I drive my 2016 GMC Sierra with the P140F code?
While driving with the P140F code may not immediately damage your vehicle, it can lead to reduced performance, increased emissions, and potential long-term engine issues. Prompt repair is recommended.
5. How can I fix the P140F code on my 2016 GMC Sierra?
Repairs may involve cleaning or replacing the EGR valve, inspecting and repairing wiring or connectors, or replacing the EGR motor if it is faulty.
6. How do I diagnose the P140F code on my 2016 GMC Sierra?
Diagnosis typically involves scanning the vehicle with an OBDII tool, inspecting the EGR system for carbon buildup or blockages, and testing the EGR motor's electrical components.
7. What tools are needed to fix the P140F code on a 2016 GMC Sierra?
Common tools include an OBDII scanner, a multimeter for electrical testing, and basic hand tools for removing and cleaning the EGR components.
8. How much does it cost to repair the P140F code on a 2016 GMC Sierra?
Repair costs vary widely depending on the issue but typically range from $150 to $500, including parts and labor.
9. Can a dirty EGR valve cause the P140F code on a 2016 GMC Sierra?
Yes, carbon buildup in the EGR valve or passages can restrict flow and trigger the P140F code.
10. Does the P140F code affect emissions testing for a 2016 GMC Sierra?
Yes, the P140F code can cause your GMC Sierra to fail emissions testing due to improper EGR system function and increased emissions.
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