P140C Lincoln Code - Exhaust Gas Recirculation Control Circuit 'B'
Quick Answer
The Powertrain Control Module (PCM) monitors the Exhaust Gas Recirculation (EGR) Valve. Common causes include Faulty Exhaust Gas Recirculation 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
- P140C Lincoln indicates Exhaust Gas Recirculation Control Circuit 'B'.
- Common causes
- Common causes include Faulty Exhaust Gas Recirculation 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 P140C Lincoln Description
What are the Possible Causes of the DTC P140C Lincoln?
- Faulty Exhaust Gas Recirculation Valve
- Exhaust Gas Recirculation Valve harness is open or shorted
- Exhaust Gas Recirculation Valve circuit poor electrical connection
How to Fix the DTC P140C Lincoln?
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 P140C Lincoln 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 P140C Lincoln Code
1. What are the common symptoms of OBDII code P140C in a Lincoln vehicle?
- Common symptoms include rough idling, engine misfires, decreased fuel efficiency, and potential stalling.
2. What does the OBDII code P140C indicating an Exhaust Gas Recirculation Control Circuit 'B' issue mean?
- This code suggests a problem with the EGR system in the vehicle, specifically related to circuit 'B'.
3. What are some possible causes of OBDII code P140C in a Lincoln?
- Potential causes include a faulty EGR valve, damaged wiring or connectors in the EGR circuit, or a malfunctioning EGR control module.
4. How can I diagnose the OBDII code P140C issue in my Lincoln vehicle?
- Diagnosis typically involves using an OBDII scanner to read the code, inspecting the EGR system components, and testing the EGR valve and related circuitry for proper function.
5. Can I continue driving my Lincoln with OBDII code P140C present?
- It is not recommended to drive with this code active, as it can lead to poor engine performance and potential damage to other components over time.
6. How can I repair OBDII code P140C in my Lincoln?
- Repair options may include replacing the EGR valve, repairing or replacing damaged wiring or connectors, or resetting the EGR control module.
7. Are there any simple DIY tips to troubleshoot OBDII code P140C before seeking professional help?
- You can visually inspect the EGR valve and its connections for any obvious damage, and ensure all wiring related to the EGR system is secure and intact.
8. Is it necessary to reset the OBDII system after repairing the issue causing code P140C?
- Yes, it is recommended to clear the OBDII system after repairing the issue to reset the code and ensure the problem has been resolved.
9. Will OBDII code P140C cause my Lincoln to fail emissions testing?
- Yes, this code is often related to emissions control, so it may cause your vehicle to fail emissions testing until the issue is resolved.
10. How can I prevent OBDII code P140C from recurring in my Lincoln?
- Regular maintenance of the EGR system, including cleaning or replacing the EGR valve as recommended, can help prevent the recurrence of this code.
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