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P0016 Buick Code - Crankshaft Position - Intake Camshaft Position Not Plausible

Quick Answer

The P0016 Buick diagnostic trouble code indicates that there is a discrepancy between the crankshaft position sensor and the intake camshaft position sensor. Common causes include Faulty timing chain or belt, Malfunctioning crankshaft position sensor, Faulty 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
P0016 Buick indicates Crankshaft Position - Intake Camshaft Position Not Plausible.
Common causes
Common causes include Faulty timing chain or belt, Malfunctioning crankshaft position sensor, Faulty 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 08, 2024
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Code P0016 Buick Description

The P0016 Buick diagnostic trouble code indicates that there is a discrepancy between the crankshaft position sensor and the intake camshaft position sensor. In a properly functioning engine, these two sensors should be in sync to ensure optimal performance. When they are not in agreement, it can lead to timing issues within the engine, causing a variety of problems.

OBDII Code P0016 Buick - Crankshaft Position - Intake Camshaft Position Not Plausible
P0016 Buick Code - Crankshaft Position - Intake Camshaft Position Not Plausible

Common Causes of P0016 Buick

  1. Faulty timing chain or belt
  2. Malfunctioning crankshaft position sensor
  3. Faulty camshaft position sensor
  4. Issues with the engine's timing system
  5. Engine overheating

Symptoms of P0016 Buick

  1. Rough idling
  2. Engine misfires
  3. Decreased fuel efficiency
  4. Engine stalling
  5. Check Engine Light illuminated

How to Fix P0016 Buick

  1. Diagnose the issue by using a scan tool to confirm the P0016 code and inspecting the timing components.
  2. Replace the faulty crankshaft position sensor or camshaft position sensor, depending on which is causing the issue.
  3. Check and potentially replace the timing chain or belt if it is found to be damaged or worn.
  4. Reset the engine's timing system and clear the trouble code from the vehicle's computer.
  5. Perform a road test to ensure the issue has been resolved and the engine is running smoothly.

Cost to Fix P0016 Buick

The typical repair costs for addressing a P0016 Buick code can vary depending on the specific cause of the issue. In general, replacing a faulty sensor or timing component can range from $200 to $500, including parts and labor. However, if more extensive repairs are needed, such as replacing the timing chain or belt, the cost can increase to $500-$1000 or more.

What does this mean?

Tech Notes for P0016 Buick

2017-2019 Buick LaCrosse
2018-2020 Buick Regal
Technical Article: Diagnosing DTCs P0016 and P0018

If this Diagnostic Trouble Code (DTC) started after recent internal engine repairs, inspect for proper engine mechanical timing. With the camshaft cover removed and the #1 cylinder at top dead center, make sure that the darkened chain links are lined up with the alignment marks on the exhaust and intake cam sprockets.

If a P0016 is resetting without any engine performance concerns but the above information did not isolate a cause for the DTC, replace the Cam Phaser Actuator sprocket.

There is a factory service bulletin for the following Buick models:
2007 Buick Allure
2007-2012 Buick LaCrosse
2008-2012 Buick Enclave
Buick Factory Service Bulletin OBDII Code P0016

Need more information about the P0016 Buick code?

Need more information on how to fix the P0016 Buick code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0016 Buick 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 P0016 Buick Code

1. What are the common symptoms of OBDII code P0016 in a Buick related to the crankshaft position and intake camshaft position?

- Common symptoms include engine misfires, rough idling, poor acceleration, and stalling.

2. What are the possible causes of OBDII code P0016 in a Buick indicating a discrepancy between the crankshaft position and intake camshaft position?

- The code can be triggered by issues such as a faulty camshaft position sensor, a problem with the timing chain or belt, or a malfunctioning variable valve timing (VVT) system.

3. How serious is OBDII code P0016 in a Buick, and what are the risks of driving with this issue unresolved?

- Driving with this code unresolved can lead to engine damage, reduced fuel efficiency, and potential engine failure due to incorrect timing of the camshaft and crankshaft.

4. Can a DIY enthusiast repair OBDII code P0016 in a Buick, or is it recommended to seek professional help?

- While some simple checks like inspecting the camshaft and crankshaft sensors can be done by DIY enthusiasts, it is advisable to seek professional help for a thorough diagnosis and proper repair.

5. Are there any specific diagnostic steps recommended when dealing with OBDII code P0016 in a Buick?

- Yes, it is important to perform a comprehensive diagnostic check using an OBDII scanner to pinpoint the exact cause of the discrepancy between the crankshaft and intake camshaft positions.

6. How can one prevent OBDII code P0016 from recurring in a Buick after repair?

- Regular maintenance, timely replacement of timing components, and ensuring the VVT system is functioning correctly can help prevent the recurrence of this code.

7. Is it necessary to reset the OBDII system after resolving code P0016 in a Buick?

- Yes, it is recommended to reset the OBDII system after repairing the issue to clear the code and ensure the repair was successful.

8. Can environmental factors or driving conditions contribute to triggering OBDII code P0016 in a Buick?

- Extreme temperatures, prolonged idling, or driving in stop-and-go traffic can sometimes exacerbate issues related to the crankshaft and intake camshaft positions, leading to the triggering of this code.

9. How long does it typically take to repair OBDII code P0016 in a Buick at a professional auto repair shop?

- The repair time can vary depending on the exact cause of the code, but it may take a few hours to a full day for a professional technician to diagnose and fix the issue properly.

10. Are there any recalls or service bulletins related to OBDII code P0016 in specific Buick models?

- It is recommended to check with Buick or authorized service centers for any recalls or service bulletins related to this specific OBDII code to ensure that all relevant updates and fixes are applied.

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