AutoCodes – Chevrolet – P042E 2016 Chevrolet Silverado

P042E 2016 Chevrolet Silverado Code - Exhaust Gas Recirculation Closed Position Performance

Quick Answer

The Engine Control Module (ECM) uses the Exhaust Gas Recirculation (EGR) position sensor to determine the position of the EGR valve. Common causes include Faulty Exhaust Gas Recirculation (EGR) 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: P042E 2016 Chevrolet Silverado indicates Exhaust Gas Recirculation Closed Position Performance.
Common causes: Common causes include Faulty Exhaust Gas Recirculation (EGR) 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.

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Code Popularity 210

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Jun 19, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P042E 2016 Chevrolet Silverado Description

The Engine Control Module (ECM) uses the Exhaust Gas Recirculation (EGR) position sensor to determine the position of the EGR valve. The ECM sends a reference voltage through the 5 V reference circuit to the EGR position sensor. The ECM provides a voltage return path for the sensor through the low reference circuit. A signal based on the EGR valve position is sent from the EGR sensor to the ECM. The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the desired position and the actual position of the EGR valve is greater than a calibrated threshold.

OBDII Code P042E 2016 Chevrolet Silverado - Exhaust Gas Recirculation Closed Position Performance - AutoCodes.com — P042E 2016 Chevrolet Silverado Code - Exhaust Gas Recirculation Closed Position Performance

What does this mean?

What are the Possible Causes of the DTC P042E 2016 Chevrolet Silverado?

Faulty Exhaust Gas Recirculation (EGR) Valve
Exhaust Gas Recirculation Valve harness is open or shorted
Exhaust Gas Recirculation Valve circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P042E 2016 Chevrolet Silverado?

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 P042E 2016 Chevrolet Silverado 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.

Need more information about the P042E 2016 Chevrolet Silverado code?

Need more information on how to fix the P042E 2016 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 P042E 2016 Chevrolet Silverado Code

1. What does the OBDII code P042E mean on a 2016 Chevrolet Silverado?

P042E indicates an Exhaust Gas Recirculation (EGR) Closed Position Performance issue, meaning the EGR valve isn't closing properly or the position sensor is reporting incorrectly.

2. What are the common symptoms of a P042E code on a 2016 Silverado?

Symptoms include rough idling, reduced fuel efficiency, engine hesitation, increased emissions, or the Check Engine Light being illuminated.

3. What causes the P042E code to appear?

Common causes include a faulty EGR valve, carbon buildup in the EGR system, a malfunctioning EGR position sensor, or issues with the wiring or connectors.

4. Can I drive my 2016 Chevrolet Silverado with a P042E code?

While the vehicle may still be drivable, it's not recommended as it can lead to poor performance, higher emissions, and potential engine damage if ignored.

5. How can I fix the P042E code on my Silverado?

Repairs may involve cleaning or replacing the EGR valve, inspecting and repairing wiring or connectors, and possibly replacing the EGR position sensor.

6. How much does it cost to repair a P042E code on a 2016 Silverado?

The cost can range from $150 to $400, depending on whether the EGR valve needs cleaning or replacement and labor rates in your area.

7. How do I diagnose the P042E code on my 2016 Silverado?

Diagnosis involves scanning with an OBDII tool, inspecting the EGR valve and position sensor, checking for wiring issues, and testing for carbon buildup in the EGR system.

8. Can a clogged EGR system cause a P042E code?

Yes, carbon buildup in the EGR system can prevent the EGR valve from closing properly, triggering the P042E code.

9. Is the P042E code related to emissions?

Yes, the P042E code can increase emissions by disrupting the proper recirculation of exhaust gases, which may cause the vehicle to fail emissions testing.

10. Will resetting the Check Engine Light fix the P042E code?

Resetting the light may clear the code temporarily, but the underlying issue must be addressed to prevent the code from returning.