AutoCodes – GMC – P0017 GMC

P0017 GMC Code - Crankshaft Position - Exhaust 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: P0017 GMC indicates Crankshaft Position - Exhaust 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 66,934

How popular is this code, among other codes? Medium

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
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code P0017 GMC 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 P0017 GMC - Crankshaft Position - Exhaust Camshaft Position Not Plausible - AutoCodes.com — P0017 GMC Code - Crankshaft Position - Exhaust Camshaft Position Not Plausible

What does this mean?

What are the Possible Causes of the DTC P0017 GMC?

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

How to Fix the DTC P0017 GMC?

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 does this mean?

Code Tech Notes

There are factory service bulletins for the following GMC models:
2004-2011 GMC Envoy
2004-2012 GMC Conyon
GMC Envoy, Canyon Factory Service Bulletin OBDII Code P0017

2007-2012 GMC Acadia
2010-2012 GMC Terrain
GMC Factory Service Bulletin OBDII Code P0017

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0017 GMC 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 P0017 GMC Code

1. What are common symptoms of OBDII code P0017 GMC?

Symptoms may include rough idling, engine stalling, poor acceleration, and illuminated Check Engine Light.

2. What does the OBDII code P0017 GMC indicate?

The code P0017 indicates that there is a discrepancy between the crankshaft position and the exhaust camshaft position.

3. What are some possible causes of code P0017 GMC?

Possible causes include a faulty camshaft position sensor, a malfunctioning crankshaft position sensor, timing chain issues, or a problem with the camshaft phaser.

4. How can I diagnose the cause of OBDII code P0017 GMC?

Diagnosis typically involves checking the camshaft and crankshaft sensors, inspecting the timing chain for wear or slack, and testing the camshaft phaser for proper functionality.

5. Can I continue driving with OBDII code P0017 GMC?

It is not recommended to drive with this code as it can lead to further engine damage or poor performance. It's best to address the issue promptly.

6. How can I repair OBDII code P0017 GMC?

Repair may involve replacing faulty sensors, repairing or replacing the timing chain, or addressing issues with the camshaft phaser. It's recommended to consult a professional mechanic for accurate diagnosis and repair.

7. Are there any preventive maintenance tips to avoid OBDII code P0017 GMC?

Regular maintenance, such as timely oil changes and inspections, can help prevent issues that may trigger this code. Additionally, addressing any unusual engine noises promptly can help prevent more severe problems.

8. Is OBDII code P0017 GMC a common issue in GMC vehicles?

While not extremely common, this code can occur in GMC vehicles, particularly in models with variable valve timing systems.

9. Can a DIY enthusiast fix OBDII code P0017 GMC?

Depending on the DIYer's skill level and access to tools, some aspects of diagnosing and repairing this code may be possible. However, due to the complexity of the issue, it's often best to seek professional help.

10. How much does it cost to repair OBDII code P0017 GMC?

The cost of repair can vary significantly based on the specific cause of the code and the labor rates in your area. It's advisable to obtain quotes from different mechanics to compare prices.