Engine-CodesChevrolet – P1103 2014 Chevrolet Silverado

P1103 2014 Chevrolet Silverado Code - Water In Fuel Signal Message Counter Incorrect

Quick Answer

The P1103 diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado indicates that the Water In Fuel Signal Message Counter is incorrect. Common causes include Faulty water in fuel sensor, Corrosion or damage to sensor wiring, Water contamination in the fuel system. 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 2014 Chevrolet Silverado indicates Water In Fuel Signal Message Counter Incorrect.
Common causes
Common causes include Faulty water in fuel sensor, Corrosion or damage to sensor wiring, Water contamination in the fuel system.
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.
Table of contents Created and updated by William Orellana on Sep 13, 2024
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Code P1103 2014 Chevrolet Silverado Description

The P1103 diagnostic trouble code (DTC) for a 2014 Chevrolet Silverado indicates that the Water In Fuel Signal Message Counter is incorrect. This code is typically associated with the vehicle's fuel system, specifically the water in fuel sensor. The water in fuel sensor is responsible for detecting the presence of water in the fuel system, which can be detrimental to the engine's performance and overall operation.

OBDII Code P1103 2014 Chevrolet Silverado - Water In Fuel Signal Message Counter Incorrect
P1103 2014 Chevrolet Silverado Code - Water In Fuel Signal Message Counter Incorrect

Common Causes of P1103 2014 Chevrolet Silverado

  1. Faulty water in fuel sensor
  2. Corrosion or damage to sensor wiring
  3. Water contamination in the fuel system
  4. Electrical issues in the sensor circuit
  5. Software or programming issues in the engine control module (ECM)

Symptoms of P1103 2014 Chevrolet Silverado

  1. Check engine light illuminated
  2. Decreased fuel efficiency
  3. Engine stalling or hesitation
  4. Rough idling
  5. Engine misfires

How to Fix P1103 2014 Chevrolet Silverado

  1. Diagnose the issue by using a scan tool to retrieve the DTC and inspect the water in fuel sensor and its wiring for any damage or corrosion.
  2. Drain the fuel system to remove any water contamination and replace the fuel filter.
  3. Test the sensor's functionality by checking its resistance and ensuring it sends accurate signals to the ECM.
  4. Replace the water in fuel sensor if it is found to be faulty or damaged.
  5. Clear the DTC and reset the ECM to ensure the issue has been resolved.

Cost to Fix P1103 2014 Chevrolet Silverado

The typical repair costs for addressing a P1103 DTC on a 2014 Chevrolet Silverado can range from $150 to $300, including parts and labor. However, specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to check local rates for a more precise estimate. Keep in mind that rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less.

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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 2014 Chevrolet Silverado Code

1. What does the OBDII code P1103 mean on a 2014 Chevrolet Silverado?

The P1103 code indicates that the Water in Fuel Signal Message Counter is incorrect, which may point to issues with the fuel system or its sensor.

2. What are common symptoms of the P1103 code on a 2014 Chevrolet Silverado?

Common symptoms include the "Water in Fuel" warning light, poor engine performance, rough idling, or potential stalling.

3. What causes the P1103 code on a 2014 Chevrolet Silverado?

The most common causes include a faulty water-in-fuel sensor, contaminated fuel, corroded wiring or connectors, or a malfunctioning fuel filter assembly.

4. Can driving with the P1103 code damage my 2014 Chevrolet Silverado?

Yes, ignoring this code can lead to engine damage if water-contaminated fuel reaches the engine, causing corrosion or improper combustion.

5. How can I fix the P1103 code on my 2014 Chevrolet Silverado?

Start by draining and replacing the fuel if it's contaminated, inspect and replace the water-in-fuel sensor if faulty, and check the wiring and connectors for damage.

6. How do I check for water contamination in my fuel system?

You can manually inspect the fuel for water by draining a small sample from the fuel filter or tank and looking for water separation.

7. Can a clogged fuel filter cause the P1103 code on a 2014 Chevrolet Silverado?

Yes, a clogged fuel filter may prevent the proper detection of water in the fuel, triggering this code.

8. Does the water-in-fuel sensor need to be replaced to clear the P1103 code?

Not always; first, verify the sensor's functionality and check for wiring or connector issues before replacing it.

9. How much does it cost to repair the P1103 code on a 2014 Chevrolet Silverado?

The repair cost varies but can range from $100 to $300, depending on whether the issue is the sensor, wiring, or fuel contamination.

10. Is it safe to reset the P1103 code on my 2014 Chevrolet Silverado without making repairs?

No, resetting the code without fixing the underlying issue may cause the problem to reoccur and potentially damage the engine.

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