Engine Camshaft Position Sensor Guide for the 2012-2017 Buick Verano
Experiencing stalling or a check engine light? Your Verano's camshaft position sensor could be the culprit.
- Your Verano has two camshaft position sensors; use a code scanner to identify which one (Intake P0340 or Exhaust P0365) has failed.
- Before replacing any parts, check your engine oil level and condition, as low or dirty oil can cause identical symptoms.
- This is a very easy DIY repair, with each sensor held by one bolt on top of the engine.
- For best results and to avoid repeat failures, use an OEM (ACDelco) or reputable OEM-supplier (Delphi) brand sensor.
Is Your Camshaft Position Sensor Failing?
A bad camshaft position sensor can cause noticeable problems in your Buick Verano. Because the sensor's signal is so important for engine timing, a failure can make your car difficult or even unsafe to drive. Look out for these common signs.
Key Symptoms of a Bad Sensor:
- Check Engine Light: This is often the first warning. The most common codes for this issue are P0340 (for the intake camshaft sensor) 🎬 See this helpful walkthrough on fixing the P0340 sensor code. and P0365 (for the exhaust camshaft sensor).
- Trouble Starting: The engine might take longer than usual to start, or it might just crank without starting at all.
- Stalling: The engine may stall unexpectedly while idling at a stoplight or even while driving.
- Poor Performance: You might feel a loss of power, rough idling, engine hesitation, or misfires.
- Bad Gas Mileage: When the engine timing is off, it burns fuel less efficiently, leading to more trips to the gas station.
Before You Buy: A Crucial First Step
Before replacing the sensors, check your engine oil. On the 2.4L Ecotec engine used in many Verano models, low or dirty engine oil can cause the camshaft actuators (phasers) to work incorrectly. This can trigger the same trouble codes and symptoms as a bad sensor. A simple oil change might solve your problem. If the oil level is good and the problem continues, then it's time to look at the sensors.
🎬 Watch: How to test and replace your Ecotec camshaft sensor.Choosing the Right Aftermarket Sensor
When it comes to electronic sensors, quality matters. While saving money is tempting, a cheap, unreliable sensor can fail quickly, leaving you with the same problem. Here’s a breakdown of your options.
- Premium Aftermarket (OEM-Equivalent): Brands like ACDelco and Delphi are often the original equipment manufacturers (OEM) for General Motors. Choosing an ACDelco GM Original Equipment part is the closest you can get to the sensor your Verano was built with. Delphi is another trusted OEM supplier with a strong reputation for electronic parts. These are highly recommended for reliability.
- Quality Aftermarket: Brands like NGK (NTK), Standard Ignition (SMP), and Dorman are well-known in the aftermarket. They offer a balance of price and quality and are generally a reliable choice if an OEM part isn't in the budget. Many professional mechanics use these brands.
- Economy Brands: Other brands available will be cheaper, but their long-term reliability can be a gamble. For a critical sensor that can leave you stranded, it's often worth spending a little more for a part from a reputable manufacturer.
How Much Does a Camshaft Sensor Replacement Cost?
The good news is that this is a relatively inexpensive repair, especially if you do it yourself. The sensors are easy to access on the top of the engine.
| Part/Service | Estimated Cost |
|---|---|
| New Aftermarket Sensor | $24 - $68 |
| New OEM Sensor (ACDelco) | $140 - $235 |
| Shop Labor | $75 - $150 |
| Total Professional Replacement | $215 - $385 |
Frequently Asked Questions
How many camshaft position sensors does my 2012-2017 Verano have?
Your Buick Verano has two camshaft position sensors. One is for the intake camshaft ("A" sensor) and the other is for the exhaust camshaft ("B" sensor).
Do I need to replace both sensors at the same time?
No, it's not necessary. The trouble code from a diagnostic scan will usually tell you which sensor has failed (e.g., P0340 for intake, P0365 for exhaust). You can replace only the faulty one. However, since they are the same age and live in the same conditions, some owners choose to replace both as preventative maintenance.
Is this a difficult repair to do myself?
No, this is a great DIY job for beginners. On the 2.4L engine, both sensors are on top of the engine's valve cover and held in by a single 10mm bolt. The job requires minimal tools and can be done in under 30 minutes.
🎬 Watch this quick 2.4L Ecotec sensor replacement guide.What happens if I ignore a bad camshaft sensor?
Ignoring the problem can lead to your engine running very poorly, getting terrible gas mileage, or stalling at dangerous times. Eventually, it could leave you stranded if the engine refuses to start.
Is there a recall for this part on my Verano?
As of now, there are no specific recalls from the NHTSA for the camshaft position sensors on the 2012-2017 Buick Verano. However, a Technical Service Bulletin (TSB PIP4548F) notes that a spun camshaft reluctor ring can cause similar codes (P0016/P0017) and will not be fixed by replacing the sensor.
Helpful Videos
![How to Fix P0365 Engine Code in 3 Minutes [2 DIY Methods / Only $9.78]](https://img.youtube.com/vi/VaX_PBSaxo0/mqdefault.jpg)
Technical Specifications
OEM Part Numbers: 12674704 12638266 213-4689 213-3826
The 2012-2017 Buick Verano uses two Hall Effect-type camshaft position sensors, one for the intake camshaft and one for the exhaust camshaft. They are located on the top of the engine valve cover.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Buick Verano: