Guide to Replacing the VVT Solenoid on a 2011-2017 Buick Regal
If your Regal has a rough idle, poor acceleration, or a check engine light, a faulty VVT solenoid could be the culprit.
- VVT solenoid failure is a common, inexpensive, and easy-to-fix issue on 2011-2017 Buick Regals.
- Symptoms include a check engine light (P0010, P0011, P0013, P0014), rough idle, and poor performance.
- Always replace both the intake and exhaust solenoids at the same time for best results.
- Regular oil changes with the correct oil are the best way to prevent premature solenoid failure.
Is Your Buick Regal Running Rough? It Could Be the VVT Solenoids.
A common issue on the 2011-2017 Buick Regal, especially with the 2.4L Ecotec engine, is the failure of the Engine Variable Valve Timing (VVT) solenoids. These parts, also known as oil control valves, are essential for engine performance and efficiency. When they fail, you'll notice it in how your car drives. The good news is that they are relatively easy and inexpensive to replace.
Symptoms of a Bad VVT Solenoid on a Buick Regal
When a VVT solenoid starts to fail, your car's computer (ECU) will often detect the problem and trigger the check engine light. You may experience one or more of the following symptoms:
- Check Engine Light: This is the most common sign. Codes like P0010, P0011, P0013, and P0014 are frequently 🎬 Watch: How to fix P0013 and P0014 codes on your Regal associated with VVT solenoid issues on these engines.
- Rough Idle and Stalling: The engine may shake, idle poorly, or even stall when you come to a stop.
- Poor Acceleration and Power Loss: Your Regal might feel sluggish and hesitate when you press the gas pedal.
- Decreased Fuel Economy: A faulty solenoid can cause the engine to burn more fuel than necessary.
- Engine Noise: In some cases, you might hear a rattling or ticking noise from the engine area.
The Role of Engine Oil
The leading cause of VVT solenoid failure is dirty or old engine oil. Sludge can clog the small screens and passages inside the solenoid, causing it to stick or fail. Following your Regal's recommended oil change schedule with the correct type of oil is the best way to prevent this problem.
OEM vs. Aftermarket VVT Solenoids for Your Regal
When it's time to replace your VVT solenoids, you have a choice between Original Equipment (OEM) and aftermarket parts. For the Buick Regal, there are many quality aftermarket options that offer a great balance of price and performance.
- Top-Tier Aftermarket (OEM-Equivalent): Brands like ACDelco (the original GM parts supplier), INA, and Gates are known for their quality and durability. They are engineered to meet or exceed the original specifications.
- Quality Aftermarket: Brands like Dorman, Cloyes, and Standard Ignition (SMP) are reputable choices. Dorman, in particular, often identifies and corrects original design flaws in their replacement parts.
- Value Brands: Companies like URO Parts, Walker Products, and Holstein offer more budget-friendly options. While they can be a good value, they may not have the same longevity or rigorous testing as the higher-tier brands.
Pro Tip: Replace in Pairs
Your Buick Regal has two VVT solenoids: one for the intake camshaft and one for the exhaust. They are located right on top of the engine under the plastic cover. Because they operate under the same conditions and have the same lifespan, it is highly recommended to replace both at the same time, even if only one has failed. This can save you from having to do the same job twice in the near future.
How Much Does a VVT Solenoid Replacement Cost?
This is a very DIY-friendly repair that can be done with basic tools in under an hour. 🎬 See this step-by-step GM 2.4L VVT solenoid replacement walkthrough This makes it one of the most cost-effective repairs you can perform.
| Part/Service | Estimated Cost |
|---|---|
| New OEM (ACDelco) | $40 - $70 per solenoid |
| New Aftermarket | $27 - $91 per solenoid |
| Shop Labor | $60 - $120 |
| Total DIY Cost (Aftermarket Pair) | $55 - $182 |
| Total Shop Cost (Aftermarket Pair) | $115 - $302 |
Frequently Asked Questions
How many VVT solenoids does my 2011-2017 Buick Regal have?
Your Regal has two VVT solenoids, located on the top of the valve cover. One controls the intake camshaft (often with a gray connector) and the other controls the exhaust camshaft (often with a black connector).
Can I just clean my VVT solenoids instead of replacing them?
While some people attempt to clean the screens on the solenoids, it is often a temporary fix. The failure is usually internal due to high resistance or a failing coil, which cleaning cannot repair. 🎬 Watch: Troubleshooting tips for Buick Regal VVT solenoid issues Given the low cost of new parts, replacement is the most reliable solution.
Is it hard to replace the VVT solenoids myself?
No, this is considered a very easy repair. The solenoids are easily accessible after removing the plastic engine cover. Each is held in by a single 10mm bolt. The entire job can typically be completed in less than 30 minutes with basic hand tools.
What happens if I don't replace a bad VVT solenoid?
While you can usually still drive the car, you will continue to experience poor performance, rough idling, and bad fuel economy. Ignoring the problem for too long could potentially lead to more stress on other timing components, leading to more expensive repairs down the road.
Are the intake and exhaust solenoids the same part?
No, they are different parts and have unique part numbers. They are often distinguished by the color of their electrical connectors (gray for intake, black for exhaust). Be sure to order the correct part for each position or buy a kit that includes both.
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Technical Specifications
OEM Part Numbers: 12679099 12662736 12655420 12628347 12679100 12655421 12628348
The 2.4L and 2.0L engines in the 2011-2017 Buick Regal use two VVT solenoids (oil control valves), one for the intake camshaft and one for the exhaust camshaft. They are located on top of the valve cover and are held in by a single 10mm bolt each. The intake solenoid typically has a gray connector, while the exhaust has a black connector.
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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.
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