P050D 2014 GMC Sierra Code - Cold Start Rough Idle
Quick Answer
During a cold start, the Engine Control Module (ECM) commands dual-pulse mode during Open Loop operation to improve cold start emissions. Common causes include Faulty Fuel Injector, Fuel Injector harness is open or shorted, Fuel 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
- P050D 2014 GMC Sierra indicates Cold Start Rough Idle.
- Common causes
- Common causes include Faulty Fuel Injector, Fuel Injector harness is open or shorted, Fuel 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 P050D 2014 GMC Sierra Description
What are the Possible Causes of the DTC P050D 2014 GMC Sierra?
- Faulty Fuel Injector
- Fuel Injector harness is open or shorted
- Fuel Injector circuit poor electrical connection
How to Fix the DTC P050D 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.
Code Tech Notes
2014-2018 Chevrolet Silverado 1500
Condition: A vehicle may have a concern about a DTC P050D setting along with a P0300 after a cold startup. White smoke and/or coolant odor may come from the exhaust for an extended period of time at a cold start as well. It may also Run rough when warm, with a slight knock, no codes set.
Cause: Coolant getting into the cylinders. If there is coolant in the cylinder, the cylinder head will need to be replaced.
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What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P050D 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.
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Frequently Asked Questions about P050D 2014 GMC Sierra Code
1. What are the common symptoms of OBDII code P050D in a 2014 GMC Sierra?
The common symptoms include rough idle during cold starts, hesitation or stalling when accelerating, and potential decrease in fuel efficiency.
2. What causes the OBDII code P050D in a 2014 GMC Sierra?
The P050D code is typically triggered by a fault in the cold start fuel system, such as issues with the fuel pressure regulator, fuel injectors, or the fuel pump.
3. How can I diagnose the OBDII code P050D in my 2014 GMC Sierra?
Diagnosing the P050D code involves using an OBDII scanner to retrieve the code, checking for any other related codes, inspecting the fuel system components, and testing the fuel pressure during cold starts.
4. Can a dirty or faulty Mass Airflow (MAF) sensor cause the OBDII code P050D in a 2014 GMC Sierra?
Yes, a dirty or faulty MAF sensor can contribute to cold start rough idle issues that trigger the P050D code. It is recommended to inspect and clean or replace the MAF sensor if necessary.
5. Are there any DIY repair tips for fixing the OBDII code P050D in a 2014 GMC Sierra?
DIY repair tips include checking for vacuum leaks, ensuring proper fuel pressure, inspecting the fuel injectors for clogs, and cleaning the throttle body to address cold start rough idle issues.
6. Is it safe to continue driving my 2014 GMC Sierra with the OBDII code P050D?
While the vehicle may still be operational with the P050D code, it is not recommended to ignore the issue. Continuing to drive with rough idle problems can potentially lead to further damage to the engine or emissions components.
7. Can a malfunctioning oxygen sensor trigger the OBDII code P050D in a 2014 GMC Sierra?
While a malfunctioning oxygen sensor may not directly cause the P050D code, it can contribute to poor fuel mixture control, which may result in rough idle during cold starts. It is advisable to check and replace any faulty oxygen sensors if needed.
8. How much does it typically cost to repair the OBDII code P050D in a 2014 GMC Sierra at a professional mechanic?
The cost of repairing the P050D code can vary depending on the exact cause of the issue and local labor rates. On average, the repair cost can range from $200 to $500, including parts and labor.
9. Can resetting the OBDII code P050D in my 2014 GMC Sierra temporarily fix the issue?
Resetting the code may temporarily clear the Check Engine Light, but if the underlying issue causing the P050D code is not addressed, the problem is likely to reoccur. It is important to diagnose and repair the root cause of the code.
10. How long does it typically take to repair the OBDII code P050D in a 2014 GMC Sierra?
The repair time for the P050D code can vary depending on the specific cause of the issue and the complexity of the repair. In general, a professional mechanic may take 1-3 hours to diagnose and fix the problem.
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