P1103 2017 GMC Sierra Code - Water In Fuel Signal Message Counter Incorrect
Quick Answer
The P1103 diagnostic trouble code for a 2017 GMC Sierra indicates that the Water In Fuel Signal Message Counter is incorrect. Common causes include Contaminated Fuel: The most common cause of this code is contaminated fuel, which can introduce water into the fuel system, Faulty Water In Fuel Sensor: A malfunctioning water in fuel sensor can lead to inaccurate readings and trigger this code, Wiring Issues: Electrical problems, such as damaged wiring or poor connections, can also cause the incorrect signal message counter. 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
- P1103 2017 GMC Sierra indicates Water In Fuel Signal Message Counter Incorrect.
- Common causes
- Common causes include Contaminated Fuel: The most common cause of this code is contaminated fuel, which can introduce water into the fuel system, Faulty Water In Fuel Sensor: A malfunctioning water in fuel sensor can lead to inaccurate readings and trigger this code, Wiring Issues: Electrical problems, such as damaged wiring or poor connections, can also cause the incorrect signal message counter.
- 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.
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Code P1103 2017 GMC Sierra Description
The P1103 diagnostic trouble code for a 2017 GMC Sierra indicates that the Water In Fuel Signal Message Counter is incorrect. This code is typically associated with the vehicle's fuel system and specifically with the water separator in the fuel filter. The water in fuel sensor is responsible for detecting the presence of water in the fuel system, which can be harmful to the engine if not addressed promptly.
Common Causes of P1103 2017 GMC Sierra
- Contaminated Fuel: The most common cause of this code is contaminated fuel, which can introduce water into the fuel system.
- Faulty Water In Fuel Sensor: A malfunctioning water in fuel sensor can lead to inaccurate readings and trigger this code.
- Wiring Issues: Electrical problems, such as damaged wiring or poor connections, can also cause the incorrect signal message counter.
- Fuel Filter Issues: A clogged or damaged fuel filter can prevent the water separator from functioning properly, leading to water entering the fuel system.
Symptoms of P1103 2017 GMC Sierra
- Check Engine Light: The most common symptom associated with this code is the illumination of the check engine light on the vehicle's dashboard.
- Engine Misfires: The presence of water in the fuel system can lead to engine misfires, rough idling, and poor performance.
- Reduced Fuel Efficiency: Water in the fuel system can cause the engine to run less efficiently, leading to decreased fuel economy.
- Engine Stalling: In severe cases, water in the fuel system can cause the engine to stall unexpectedly, especially during acceleration or at higher speeds.
How to Fix P1103 2017 GMC Sierra
- Diagnostic Scan: Begin by using a diagnostic scanner to retrieve the trouble codes and identify the specific issue with the water in fuel signal message counter.
- Inspect Fuel System: Inspect the fuel system for any signs of contamination or damage, paying close attention to the fuel filter and water separator.
- Replace Water In Fuel Sensor: If the sensor is found to be faulty, replace it with a new one to ensure accurate readings.
- Clear Codes: After making the necessary repairs, clear the trouble codes from the vehicle's computer to reset the check engine light.
- Test Drive: Take the vehicle for a test drive to ensure that the issue has been resolved and that the check engine light does not reappear.
Cost to Fix P1103 2017 GMC Sierra
The typical repair costs for addressing a P1103 code on a 2017 GMC Sierra can vary depending on the specific issue causing the code and the cost of parts and labor. On average, the cost of replacing a water in fuel sensor can range from $100 to $200, with additional costs for diagnostic scans, parts, and labor. It's important to note that labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. Additionally, the cost of parts can vary based on the vehicle's make and model. For a more accurate estimate, it is recommended to consult with a local auto repair shop.
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Frequently Asked Questions about P1103 2017 GMC Sierra Code
1. What does the OBDII code P1103 mean on a 2017 GMC Sierra?
P1103 indicates that the "Water In Fuel Signal Message Counter" is incorrect, typically pointing to an issue with the fuel system's ability to detect water contamination accurately.
2. What are the common symptoms of P1103 in a 2017 GMC Sierra?
Symptoms may include the "Water in Fuel" warning message, reduced engine performance, poor fuel economy, or difficulty starting the engine.
3. What causes the P1103 code to appear on a 2017 GMC Sierra?
This code is often caused by a faulty water-in-fuel sensor, contaminated fuel, a damaged fuel filter, or wiring and connection issues in the fuel system.
4. Can driving with the P1103 code damage my 2017 GMC Sierra?
Yes, continued driving with water in the fuel can cause severe damage to the fuel injectors, fuel pump, and other engine components.
5. How is the P1103 code diagnosed on a 2017 GMC Sierra?
A mechanic will inspect the water-in-fuel sensor, check for fuel contamination, test the wiring and connections, and use a scan tool to confirm the fault.
6. How do I fix the P1103 code on my 2017 GMC Sierra?
Repairs may involve draining and replacing contaminated fuel, replacing the water-in-fuel sensor, cleaning or replacing the fuel filter, or repairing faulty wiring.
7. Can a bad fuel filter cause the P1103 code?
Yes, a clogged or damaged fuel filter can contribute to the P1103 code by affecting fuel flow and sensor readings.
8. How can I prevent the P1103 code from occurring?
Regularly inspect and replace the fuel filter, use high-quality fuel, and avoid filling up at stations with a history of contaminated fuel.
9. Do I need to reset the P1103 code after repairs?
Yes, after completing the necessary repairs, the code should be cleared using an OBDII scan tool to ensure it does not reappear.
10. Is the P1103 code specific to GMC Sierra trucks?
While P1103 can appear on various vehicles, its specific definition and causes, such as "Water In Fuel Signal Message Counter Incorrect," are tailored to GMC Sierra and other GM vehicles.
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