The APDTY 027046 VVT Variable Valve Timing Solenoid (Intake) is a direct replacement component designed to restore proper engine timing control on select 2013-2021 GM vehicles, including Buick, Cadillac, Chevrolet, and GMC models. This solenoid regulates oil flow to the variable valve timing system, and when it fails, drivers experience rough idle, hesitation, reduced fuel economy, and check engine lights—often codes P0010 or P0011.
Key Takeaways
- APDTY 027046 replaces GM OE part numbers 12627117, 12655434, and 12662736
- Fits select 2014-2020 Buick, 2013-2019 Cadillac, 2013-2021 Chevrolet, and 2015-2021 GMC models—verify fitment using the live compatibility chart
- Symptoms of failure include rough idle, poor acceleration, reduced fuel economy, and check engine light with VVT-related codes
- Brand new OE-equivalent part designed for direct bolt-in installation
- Essential component for maintaining proper engine performance and emissions compliance
Buy APDTY 027046 directly from APDTY
What Does the VVT Solenoid Do?
The Variable Valve Timing (VVT) solenoid is an electronically controlled valve that regulates engine oil flow to the camshaft phaser. The engine control module (ECM) commands the solenoid to advance or retard camshaft timing based on driving conditions, optimizing power, fuel economy, and emissions across the RPM range.
The APDTY 027046 is specifically the intake-side solenoid, controlling timing on the intake camshaft. Modern GM engines use separate solenoids for intake and exhaust cams. When the solenoid fails or becomes clogged with debris, the ECM loses control over cam timing, triggering fault codes and degrading engine performance.
What Are the Symptoms of a Failed VVT Solenoid?
A failing or stuck VVT solenoid produces several noticeable symptoms:
- Check Engine Light: Most commonly with codes P0010 (VVT solenoid circuit), P0011 (intake cam timing over-advanced), P0014 (exhaust cam timing), or P0521 (engine oil pressure sensor)
- Rough or Unstable Idle: Engine stumbles or hunts at idle due to incorrect cam phasing
- Hesitation or Poor Acceleration: Lack of power during throttle application, especially from a stop
- Reduced Fuel Economy: ECM compensates for timing errors with richer fuel mixtures
- Hard Starting: Difficulty starting the engine, especially when cold
- Engine Noise: Rattling or ticking from the timing chain area in severe cases
If you experience any of these symptoms and scan codes point to VVT system faults, the solenoid is a common root cause—particularly on higher-mileage vehicles or engines with deferred oil changes.
Which Vehicles Does APDTY 027046 Fit?
This VVT solenoid is engineered for select General Motors vehicles across four brands:
- Buick: Select 2014-2020 models
- Cadillac: Select 2013-2019 models
- Chevrolet: Select 2013-2021 models
- GMC: Select 2015-2021 models
Important: The product data does not specify exact vehicle models, engine sizes, or trim levels. Because VVT solenoid applications vary by engine type (e.g., 2.0L Turbo, 2.5L, 3.6L V6), you must verify fitment using the live compatibility chart on the APDTY product page before purchasing. Enter your vehicle's year, make, model, and engine to confirm this part number matches your application.
Technical Specifications and OE Cross-Reference
| Specification | Detail |
|---|---|
| APDTY Part Number | 027046 |
| Type | VVT Variable Valve Timing Solenoid (Intake Side) |
| Condition | Brand New |
| OE Replacement Numbers | 12627117, 12655434, 12662736 |
| Fitment | 2013-2021 GM vehicles (Buick, Cadillac, Chevrolet, GMC)—verify compatibility chart |
| Design | Direct OE replacement, bolt-in installation |
This solenoid replaces three GM factory part numbers, covering multiple model years and platform updates. Always cross-reference your existing part number or use the compatibility chart to ensure proper fitment.
Installation Overview and Important Precautions
Replacing the VVT solenoid is a straightforward repair on most GM engines, typically requiring basic hand tools and 30-60 minutes of work. The solenoid is usually located on the front or top of the engine, near the valve cover or timing chain cover, with a single mounting bolt and an electrical connector.
General Installation Steps:
- Disconnect the negative battery cable
- Unplug the electrical connector from the solenoid
- Remove the mounting bolt (typically 8mm or 10mm)
- Pull the old solenoid straight out—expect some oil drainage
- Inspect the O-ring and sealing surface for debris
- Lubricate the new O-ring with clean engine oil
- Install the new solenoid, torque the bolt to factory spec (usually 89-106 lb-in or 10-12 Nm)
- Reconnect the electrical connector and battery
- Clear fault codes with a scan tool and perform a test drive
Critical Maintenance Notes:
- Use Fresh Engine Oil: VVT solenoids rely on clean oil. Change the engine oil and filter at the time of solenoid replacement to prevent repeat failures.
- Check for Sludge: If the old solenoid screen is clogged with sludge, the engine may have oil flow issues. Consider an engine flush or more frequent oil changes.
- Verify Oil Pressure: Low oil pressure can mimic VVT solenoid failure. Confirm proper oil pressure before replacing the solenoid.
- Clear Codes Properly: After installation, use a scan tool to clear all VVT-related codes and verify the system operates correctly under various loads.
Always consult a factory service manual for your specific vehicle's torque specifications, connector release procedures, and any additional steps required for your engine configuration.
Why Choose APDTY 027046?
The APDTY 027046 VVT solenoid offers several advantages for DIY mechanics and professional technicians:
- OE-Equivalent Quality: Engineered to meet or exceed original equipment specifications for fit, function, and durability
- Direct Replacement: No modifications required—bolts directly into factory location
- Broad GM Coverage: Single part number replaces three OE numbers across multiple GM brands and model years
- Cost-Effective Solution: Restores VVT function without the expense of dealership parts
- Proven Reliability: Designed for long-term performance when paired with proper engine maintenance
By choosing a quality replacement part and maintaining clean engine oil, you can restore smooth idle, responsive throttle, and proper fuel economy while eliminating check engine lights caused by VVT system faults.
Frequently asked questions
Will APDTY 027046 fit my 2015 Chevrolet Malibu?
The product data indicates this solenoid fits select 2013-2021 Chevrolet models, but exact model and engine fitment is not specified. You must verify compatibility using the live compatibility chart on the APDTY product page by entering your vehicle's year, make, model, and engine size.
Can I drive with a faulty VVT solenoid?
You can drive short distances, but a failed VVT solenoid degrades performance, fuel economy, and emissions compliance. Prolonged driving with incorrect cam timing can stress the timing chain and potentially cause engine damage. Replace the solenoid as soon as symptoms appear.
What causes VVT solenoids to fail?
The most common causes are dirty engine oil, infrequent oil changes, and oil sludge clogging the solenoid screen. Electrical faults, internal coil failure, and wear over high mileage also contribute. Always change the oil and filter when replacing a VVT solenoid to prevent repeat failures.
Do I need to replace both intake and exhaust VVT solenoids at the same time?
Not necessarily. If only the intake solenoid has failed (confirmed by fault codes and inspection), you can replace it individually. However, if both solenoids are original and high-mileage, or if the engine has oil quality issues, replacing both as preventive maintenance can be cost-effective.
The APDTY 027046 VVT Variable Valve Timing Solenoid is the direct solution for GM drivers experiencing rough idle, poor acceleration, and check engine lights caused by intake cam timing faults. Designed to replace OE part numbers 12627117, 12655434, and 12662736, this solenoid restores proper engine timing control across select 2013-2021 Buick, Cadillac, Chevrolet, and GMC vehicles. Always verify your specific fitment using the compatibility chart, and pair your solenoid replacement with fresh engine oil and a new filter to ensure long-term reliability. Restore your engine's smooth performance and eliminate those frustrating VVT fault codes—order your APDTY 027046 today.