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P1336 Chevrolet Code - Crankshaft Position System Variation Not Learned

Quick Answer

The P1336 Chevrolet code indicates that the engine control module (ECM) has detected that the crankshaft position system variation has not been learned. Common causes include Faulty crankshaft position sensor, Incorrect sensor readings due to a damaged or worn sensor, Issues with the camshaft position sensor. 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
P1336 Chevrolet indicates Crankshaft Position System Variation Not Learned.
Common causes
Common causes include Faulty crankshaft position sensor, Incorrect sensor readings due to a damaged or worn sensor, Issues with the camshaft position sensor.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P1336 Chevrolet Description

The P1336 Chevrolet code indicates that the engine control module (ECM) has detected that the crankshaft position system variation has not been learned. The crankshaft position system variation learning process is a vital component of the engine's operation, as it ensures that the ECM accurately determines the position of the crankshaft. This information is crucial for proper fuel injection timing, ignition timing, and overall engine performance.

OBDII Code P1336 Chevrolet - Crankshaft Position System Variation Not Learned
P1336 Chevrolet Code - Crankshaft Position System Variation Not Learned

Common Causes of P1336 Chevrolet

  1. Faulty crankshaft position sensor.
  2. Incorrect sensor readings due to a damaged or worn sensor.
  3. Issues with the camshaft position sensor.
  4. Wiring or connection issues between the sensors and the ECM.
  5. Mechanical problems with the crankshaft or camshaft.

Symptoms of P1336 Chevrolet

  1. Rough idling or vibrations when the vehicle is at a standstill.
  2. Poor acceleration and lack of power when accelerating.
  3. Engine misfires or hesitation during acceleration.
  4. Stalling or difficulty starting the engine.
  5. Check Engine Light illuminated on the dashboard.

How to Fix P1336 Chevrolet

  1. Diagnose the issue by using a scan tool to retrieve the trouble code and identify the specific cause of the problem.
  2. Inspect the crankshaft and camshaft sensors for any signs of damage or wear, replacing them if necessary.
  3. Check the wiring and connections between the sensors and the ECM for any faults or loose connections, repairing or replacing them as needed.
  4. Perform the crankshaft position system variation learning procedure using a scan tool to reset the ECM and teach it the correct position of the crankshaft.
  5. Clear the trouble code from the ECM's memory and test drive the vehicle to ensure that the issue has been resolved.

Cost to Fix P1336 Chevrolet

The typical repair costs for addressing a P1336 Chevrolet code can vary depending on the specific cause of the issue. However, on average, the cost of parts such as sensors and wiring could range from $100 to $300, while labor costs could range from $100 to $300. Overall, the total repair cost for this issue could be between $200 and $600. It's important to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and the shop's labor rates. It's advisable to consult with a trusted mechanic or auto repair shop for a more accurate estimate based on your specific situation.

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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 P1336 Chevrolet Code

1. What are the common symptoms of OBDII code P1336 in a Chevrolet related to the Crankshaft Position System Variation Not Learned?

The common symptoms include rough idling, engine stalling, poor acceleration, and difficulty starting the vehicle.

2. What causes the OBDII code P1336 in a Chevrolet related to the Crankshaft Position System Variation Not Learned?

The code is typically caused by a faulty crankshaft position sensor, improper sensor installation, wiring issues, or a damaged reluctor wheel.

3. How can I diagnose the OBDII code P1336 in a Chevrolet related to the Crankshaft Position System Variation Not Learned?

Diagnosing this code usually involves checking the crankshaft position sensor's operation, inspecting the sensor wiring for damage, and verifying the reluctor wheel's condition.

4. Can a dirty or faulty crankshaft position sensor trigger the OBDII code P1336 in a Chevrolet?

Yes, a dirty or faulty crankshaft position sensor can cause the code to be triggered due to inaccurate data being sent to the engine control module.

5. What is the repair process for fixing the OBDII code P1336 in a Chevrolet related to the Crankshaft Position System Variation Not Learned?

The repair process typically involves replacing the crankshaft position sensor, ensuring proper installation, addressing any wiring issues, and resetting the system to relearn the crankshaft position variation.

6. Can a weak battery or alternator issues contribute to the OBDII code P1336 in a Chevrolet?

Yes, a weak battery or alternator issues can affect the voltage supply to the crankshaft position sensor, leading to erratic sensor readings and potentially triggering the code.

7. Is it safe to continue driving with the OBDII code P1336 in a Chevrolet related to the Crankshaft Position System Variation Not Learned?

It is not recommended to continue driving with this code as it can lead to further engine performance issues and potential stalling, posing a safety risk.

8. How long does it take to reset the Crankshaft Position System Variation on a Chevrolet after repairing the OBDII code P1336?

After repairing the issue and resetting the system, it may take a few driving cycles for the system to relearn the crankshaft position variation, typically within 50-100 miles of driving.

9. Can a DIY enthusiast with basic automotive knowledge fix the OBDII code P1336 in a Chevrolet related to the Crankshaft Position System Variation Not Learned?

Depending on the root cause, a DIY enthusiast with basic automotive knowledge may be able to replace the crankshaft position sensor and address wiring issues. However, complex diagnostics may require professional assistance.

10. How much does it cost to repair the OBDII code P1336 in a Chevrolet related to the Crankshaft Position System Variation Not Learned?

The cost of repair can vary depending on the specific issue, but it typically ranges from $100 to $300 for parts and labor at a dealership or auto repair shop.

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