AutoCodes – GMC – P0009 GMC

P0009 GMC Code - Engine Positions System Performance Bank 2

Quick Answer

The Engine Control Module (ECM) monitors the position of both camshafts and the crankshaft. Common causes include Engine mechanical problems, Incorrect timing chain, Stretched timing chain. 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: P0009 GMC indicates Engine Positions System Performance Bank 2.
Common causes: Common causes include Engine mechanical problems, Incorrect timing chain, Stretched timing chain.
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 21,486

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 Jun 28, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0009 GMC Description

The Engine Control Module (ECM) monitors the position of both camshafts and the crankshaft. The ECM performs a test for misalignment between both camshafts on one bank of the engine and the crankshaft. During the test the ECM learns the position of the camshafts and the crankshaft. While the engine is idling, the ECM compares the position of both the camshafts and the crankshaft with the learned value. The ECM will set the P0008 code if both learned values for one bank of the engine are exceeding a calibrated threshold in the same direction.

OBDII Code P0009 GMC - Engine Positions System Performance Bank 2 - AutoCodes.com — P0009 GMC Code - Engine Positions System Performance Bank 2

What does this mean?

What are the Possible Causes of the DTC P0009 GMC?

Engine mechanical problems
Incorrect timing chain
Stretched timing chain
Failed camshaft actuator or actuator solenoid

How to Fix the DTC P0009 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 is a factory service bulletin for the following GMC models:
2007-2012 GMC Acadia
2010-2012 GMC Terrain
GMC Factory Service Bulletin OBDII Code P0009

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0009 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.

Need more information about the P0009 GMC code?

Need more information on how to fix the P0009 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0009 GMC code diagnosed by a professional: Find a repair shop in your area

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 P0009 GMC Code

1. What are the common symptoms of OBDII code P0009 GMC (Engine Positions System Performance Bank 2)?

- Common symptoms include rough idling, misfiring, reduced engine performance, and potential stalling.

2. What could cause the OBDII code P0009 GMC to trigger?

- The code may be triggered by issues such as a faulty crankshaft position sensor, camshaft position sensor, timing chain problem, or engine mechanical issues.

3. How can I diagnose the OBDII code P0009 GMC?

- Diagnosis involves using a scan tool to retrieve the code, checking the crankshaft and camshaft position sensor readings, inspecting the timing chain, and verifying the engine mechanical condition.

4. What are the potential repair options for OBDII code P0009 GMC?

- Repair options may include replacing the crankshaft position sensor, camshaft position sensor, addressing timing chain issues, or fixing any underlying engine mechanical problems.

5. Can I drive my vehicle with the OBDII code P0009 GMC active?

- It is not recommended to drive with this code active, as it can lead to further engine damage and potential safety risks.

6. How much does it typically cost to repair OBDII code P0009 GMC?

- The cost of repair can vary depending on the specific cause of the code, but it may range from a few hundred to over a thousand dollars, including parts and labor.

7. Are there any DIY tips for addressing OBDII code P0009 GMC?

- DIY tips include checking and cleaning the sensors, inspecting the timing chain for wear, and ensuring proper engine maintenance to prevent future issues.

8. Can a faulty timing chain cause the OBDII code P0009 GMC to appear?

- Yes, a worn or stretched timing chain can cause the engine positions system to perform poorly, leading to the triggering of code P0009.

9. How urgent is it to address OBDII code P0009 GMC?

- It is advisable to address this code promptly to prevent further damage to the engine and ensure the vehicle operates safely and efficiently.

10. Is it necessary to reset the OBDII system after repairing OBDII code P0009 GMC?

- Yes, it is recommended to clear the code and reset the OBDII system after repairing the underlying issue to ensure proper monitoring of the vehicle's performance.