P140F 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado Description
What are the Possible Causes of the DTC P140F 2018 Chevrolet Silverado?
- 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 2018 Chevrolet Silverado?
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 2018 Chevrolet Silverado 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 P140F 2018 Chevrolet Silverado code?
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Frequently Asked Questions about P140F 2018 Chevrolet Silverado Code
1. What does the OBDII code P140F mean on a 2018 Chevrolet Silverado?
The P140F code indicates an issue with the Exhaust Gas Recirculation (EGR) motor current performance, suggesting the EGR system is not operating as expected.
2. What are the symptoms of a P140F code on a Chevrolet Silverado?
Symptoms may include the check engine light turning on, poor engine performance, rough idling, reduced fuel efficiency, or increased emissions.
3. What causes the P140F code to appear?
Common causes include a faulty EGR motor, wiring issues, a clogged EGR valve, carbon buildup in the EGR system, or a malfunctioning EGR position sensor.
4. Can I drive my Silverado with a P140F code?
While the vehicle may still be drivable, continuing to drive with this code can lead to reduced performance and potential damage to the engine or emissions system.
5. How is the P140F code diagnosed?
A technician will use a scan tool to check the EGR motor’s performance, inspect wiring and connections, and test the EGR valve for clogs or malfunctions.
6. How do I fix the P140F code on my 2018 Silverado?
Repairs may include cleaning or replacing the EGR valve, repairing damaged wiring, replacing the EGR motor, or addressing excessive carbon buildup in the system.
7. How much does it cost to fix a P140F EGR issue?
The repair cost can vary widely, ranging from $150 to $600, depending on whether the EGR valve or motor needs cleaning or replacement.
8. Can a clogged EGR valve trigger the P140F code?
Yes, a clogged EGR valve can restrict airflow and cause the EGR motor to work harder, leading to the P140F code.
9. How can I prevent the P140F code from occurring?
Regular maintenance, such as cleaning the EGR valve and using quality fuel to reduce carbon buildup, can help prevent this issue.
10. Will resetting the check engine light fix the P140F code?
Resetting the light may temporarily clear the code, but the underlying issue must be addressed to prevent it from returning.
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