P0016 Buick 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 Buick 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.
Code P0016 Buick Description
What are the Possible Causes of the DTC P0016 Buick?
- 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 Buick?
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.
Code Tech Notes
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
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0016 Buick 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 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
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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