AutoCodes – GMC – P0016 2018 GMC Sierra

P0016 2018 GMC Sierra Code - Crankshaft Position - Intake Camshaft Position Not Plausible

Quick Answer

The Camshaft Position (CMP) actuator system is controlled by the control module. Common causes include Low oil level, Mechanical timing fault (stretched timing chain or damaged timing chain tensioner), Blocked oil passage. 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: P0016 2018 GMC Sierra indicates Crankshaft Position - Intake Camshaft Position Not Plausible.
Common causes: Common causes include Low oil level, Mechanical timing fault (stretched timing chain or damaged timing chain tensioner), Blocked oil passage.
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 304

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 22, 2022

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0016 2018 GMC Sierra Description

The Camshaft Position (CMP) actuator system is controlled by the control module. The Engine Control Module (ECM) sends a pulse width modulated signal to a CMP actuator solenoid in order to control the amount of engine oil flow to a camshaft actuator passage. There are 2 different passages for oil to flow through, a passage for CAM advance and a passage for CAM retard. The camshaft actuator is attached to the front of the camshaft and is hydraulically operated in order to change the angle of the camshaft relative to the Crankshaft Position (CKP). Engine Oil Pressure (EOP), viscosity, temperature, engine oil level, and aftermarket engine oil additives can have an adverse effect on camshaft phaser performance. The Diagnostic Trouble Code (DTC) will be set when the ECM compares the signals of the crankshaft position sensor and both camshaft position sensors to detect if the signals are out of sync.

OBDII Code P0016 2018 GMC Sierra - Crankshaft Position - Intake Camshaft Position Not Plausible - AutoCodes.com — P0016 2018 GMC Sierra Code - Crankshaft Position - Intake Camshaft Position Not Plausible

What does this mean?

What are the Possible Causes of the DTC P0016 2018 GMC Sierra?

Low oil level
Mechanical timing fault (stretched timing chain or damaged timing chain tensioner)
Blocked oil passage
Faulty Intake ('A') Camshaft Position (CMP) Sensor
Faulty Crankshaft Position (CKP) Sensor

How to Fix the DTC P0016 2018 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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0016 2018 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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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 P0016 2018 GMC Sierra Code

1. What are the common symptoms of OBDII code P0016 in a 2018 GMC Sierra?

The common symptoms of P0016 in a 2018 GMC Sierra include rough idling, engine misfires, poor acceleration, and possibly stalling.

2. What does the OBDII code P0016 in a 2018 GMC Sierra indicate?

P0016 indicates a fault in the relationship between the crankshaft position sensor and the intake camshaft position sensor in the engine.

3. What are the possible causes of OBDII code P0016 in a 2018 GMC Sierra?

Possible causes of P0016 include a faulty camshaft or crankshaft position sensor, timing chain issues, incorrect oil viscosity, or engine mechanical problems.

4. How serious is OBDII code P0016 in a 2018 GMC Sierra?

While the vehicle may still be operable with P0016, it is important to address the issue promptly to prevent potential engine damage and to maintain optimal performance.

5. Can I drive my 2018 GMC Sierra with OBDII code P0016?

It is not recommended to drive the vehicle extensively with P0016 present, as it can lead to further engine complications. It's best to have the issue diagnosed and repaired as soon as possible.

6. How can OBDII code P0016 in a 2018 GMC Sierra be diagnosed?

Diagnosing P0016 typically involves using a scan tool to read the code, checking the camshaft and crankshaft sensors, inspecting the timing chain, and ensuring proper oil levels and quality.

7. Is it possible to repair OBDII code P0016 in a 2018 GMC Sierra at home?

If you have the necessary tools and expertise, you may be able to address P0016 at home by replacing the faulty sensors, checking and adjusting the timing chain, or changing the engine oil.

8. Can a bad camshaft position sensor cause OBDII code P0016 in a 2018 GMC Sierra?

Yes, a malfunctioning camshaft position sensor can contribute to triggering P0016, as it affects the synchronization between the crankshaft and camshaft positions.

9. How much does it typically cost to repair OBDII code P0016 in a 2018 GMC Sierra?

The cost of repairing P0016 can vary depending on the specific cause of the issue. It may range from a few hundred dollars for sensor replacements to more significant costs if timing chain or other major repairs are needed.

10. How long can I safely ignore OBDII code P0016 in a 2018 GMC Sierra?

It's best not to ignore P0016 for an extended period, as it can lead to more severe engine problems. Address the issue promptly to prevent further complications and maintain the health of your vehicle.