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P1103 2016 Chevrolet Silverado Code - Water In Fuel Signal Message Counter Incorrect

Quick Answer

The OBD-II code P1103 in a 2016 Chevrolet Silverado indicates that the Water In Fuel Signal Message Counter is incorrect. Common causes include Condensation in the fuel tank, Faulty fuel filter, Cracked fuel lines. 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 2016 Chevrolet Silverado indicates Water In Fuel Signal Message Counter Incorrect.
Common causes
Common causes include Condensation in the fuel tank, Faulty fuel filter, Cracked fuel lines.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P1103 2016 Chevrolet Silverado Description

The OBD-II code P1103 in a 2016 Chevrolet Silverado indicates that the Water In Fuel Signal Message Counter is incorrect. This code is typically triggered when the Engine Control Module (ECM) detects that the number of times the water in fuel signal has been received does not match the expected value. Water in the fuel system can cause serious damage to the engine and other components if not addressed promptly.

OBDII Code P1103 2016 Chevrolet Silverado - Water In Fuel Signal Message Counter Incorrect
P1103 2016 Chevrolet Silverado Code - Water In Fuel Signal Message Counter Incorrect

Common Causes of P1103 2016 Chevrolet Silverado

  1. Condensation in the fuel tank
  2. Faulty fuel filter
  3. Cracked fuel lines
  4. Fuel pump seal failure
  5. Poor quality fuel

Symptoms of P1103 2016 Chevrolet Silverado

  1. Rough idling
  2. Decreased fuel efficiency
  3. Engine stalling
  4. Check Engine Light illuminated
  5. Engine misfires

How to Fix P1103 2016 Chevrolet Silverado

  1. Drain the fuel tank to remove any water and contaminants.
  2. Replace the fuel filter to ensure clean fuel is entering the engine.
  3. Inspect and repair any damaged fuel lines or seals.
  4. Use a fuel system cleaner to remove any remaining deposits or contaminants.
  5. Refill the tank with fresh, high-quality fuel to prevent future water contamination.

Cost to Fix P1103 2016 Chevrolet Silverado

The cost of repairing the water in fuel signal message counter issue in a 2016 Chevrolet Silverado can vary depending on the extent of the damage and the specific repairs needed. On average, the cost of parts and labor for this repair can range from $200 to $500. However, this estimate is a rough guideline and actual costs may vary based on location, labor rates, and the severity of the issue. It is recommended to consult with a certified mechanic or auto repair shop for a more accurate cost estimate.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1103 2016 Chevrolet Silverado Code

1. What does the OBDII code P1103 mean on a 2016 Chevrolet Silverado?

P1103 indicates that the water-in-fuel signal message counter is incorrect, signaling a potential issue with the fuel system or its sensors.

2. What are the common symptoms of a P1103 code on a 2016 Chevy Silverado?

Symptoms may include a "Water in Fuel" warning light, reduced engine performance, rough idling, or difficulty starting the vehicle.

3. What causes the P1103 code on a 2016 Chevrolet Silverado?

Common causes include a faulty water-in-fuel sensor, contaminated fuel, corroded wiring or connectors, or a malfunction in the fuel system control module.

4. How do I diagnose a P1103 code on my Silverado?

Start by inspecting the water-in-fuel sensor, checking for fuel contamination, and examining the wiring and connectors for damage or corrosion.

5. Can driving with a P1103 code damage my Silverado?

Yes, ignoring the code can lead to engine damage if water-contaminated fuel is not addressed promptly.

6. How do I fix a P1103 code on a 2016 Chevy Silverado?

Repairs may include draining and replacing contaminated fuel, replacing the water-in-fuel sensor, or repairing damaged wiring or connectors.

7. What tools are needed to troubleshoot a P1103 code?

You’ll need an OBDII scanner, a multimeter to check electrical connections, and possibly tools to drain and replace the fuel.

8. How can I prevent the P1103 code from recurring?

Regularly use high-quality fuel, replace the fuel filter as recommended, and ensure the fuel system is free of moisture or contaminants.

9. Is the P1103 code related to the fuel filter on a 2016 Silverado?

Yes, a clogged or contaminated fuel filter can contribute to issues that trigger the P1103 code.

10. Should I take my Silverado to a mechanic for the P1103 code?

If you’re unsure of the cause or unable to fix it yourself, it’s advisable to consult a qualified mechanic to avoid further damage.

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