7 Top Camshaft Position Sensors for Your 2018 Chevy Malibu
If you own a 2018 Chevy Malibu, you know how crucial every component is to its smooth operation. Among the unsung heroes under the hood is the camshaft position sensor. This little device plays a vital role in ensuring your engine runs efficiently, so when it starts acting up, you’ll definitely notice.
This article dives deep into some of the best replacement options for your 2018 Chevy Malibu camshaft position sensor, helping you make an informed decision to get your car back in top shape. We’ll look at their features, pros, cons, and what other car owners are saying.
Why is Your Camshaft Position Sensor Important?
The camshaft position sensor (CMP sensor) is a critical component of your car’s engine management system. It monitors the speed and position of the camshaft, sending this information to the engine control unit (ECU). The ECU then uses this data to precisely time the fuel injection and ignition, ensuring optimal engine performance, fuel efficiency, and reduced emissions. Think of it as the conductor of an orchestra, making sure all the engine’s moving parts are in perfect harmony.
Symptoms of a Bad Camshaft Position Sensor
Experiencing issues with your 2018 Chevy Malibu? A failing camshaft position sensor often throws out some clear warning signs. Here are a few to watch out for:
- Illuminated Check Engine Light: This is usually the first indicator. Diagnostic trouble codes (DTCs) like P0340 or P0341 are commonly associated with a faulty CMP sensor.
- Engine Misfires or Rough Idling: Incorrect timing can lead to the engine running unevenly, feeling like it’s sputtering.
- Difficulty Starting: If the ECU doesn’t know the camshaft’s position, it can’t time the ignition correctly, making starting a challenge.
- Stalling Issues: Your engine might unexpectedly shut down while driving or at a stop.
- Decreased Fuel Economy: Inefficient timing can lead to your engine consuming more fuel than usual.
- Poor Acceleration: You might notice a lack of power or sluggish response when you press the accelerator.
If you’re experiencing any of these symptoms, it’s a good idea to have your vehicle checked. Replacing a faulty 2018 Chevy Malibu camshaft position sensor can often resolve these issues quickly and prevent further damage.
Choosing the Right Camshaft Position Sensor for Your 2018 Chevy Malibu
When it comes to replacing this crucial part, compatibility is key. You’ll want a sensor that’s a direct replacement and meets or exceeds OEM specifications for reliability and performance. Features like a solid warranty, durable construction, and ease of installation are also big pluses. Let’s explore some top options!
ZBN 12638266 Camshaft Position Sensor Fit for Chevy Malibu…

This ZBN camshaft position sensor stands out for its strong emphasis on quality assurance and direct replacement design. It’s built to meet OEM standards, ensuring that it’ll fit right in and perform just like the original part. Plus, with a one-year warranty, you get a bit of extra peace of mind, knowing the manufacturer stands behind their product. It’s a solid choice for anyone looking for a reliable fix for their 2018 Chevy Malibu camshaft position sensor issues.
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Key Features:
- One-year quality warranty for peace of mind.
- Stable performance, durable, and long-lasting construction.
- 100% tested before shipment to ensure reliability.
- Meets or exceeds OEM standards and specifications.
- Utilizes high-grade technology for accurate readings.
- Designed for easy, tool-free installation as a direct replacement.
- Aims to improve performance and eliminate check engine light codes.
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Pros:
- Excellent warranty coverage.
- Guaranteed fit and function comparable to original equipment.
- Simplifies DIY installation, saving time and money.
- Addresses common diagnostic trouble codes effectively.
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Cons:
- Compatibility list is quite extensive, requiring careful double-checking of your specific sub-model/engine.
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User Impressions:
Customers often praise this sensor for being a perfect fit and resolving their vehicle’s issues, such as rough idling or check engine lights, without any fuss. The straightforward installation process is frequently highlighted as a major benefit.
DAOKACUO Camshaft Position Sensor Fits for Buick Encore…

The DAOKACUO camshaft position sensor prides itself on its rigorous testing and commitment to OEM standards. This sensor is designed to be a direct, tool-free replacement, making it incredibly appealing for DIY enthusiasts. Its focus on stable and durable performance means you can count on it for the long haul, helping restore your 2018 Chevy Malibu’s engine performance without a hitch.
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Key Features:
- One-year quality guarantee for customer support.
- Compatible with multiple OEM part numbers (12636947, 12626252, etc.).
- Reliable and stable performance, built for durability.
- 100% tested before shipment to ensure quality.
- Made from high-quality materials meeting or exceeding OEM standards.
- Precision-engineered for easy, tool-free installation.
- Enhances vehicle performance and resolves diagnostic trouble codes.
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Pros:
- Strong quality guarantee.
- Ease of installation, often without special tools.
- Reliable performance, designed to last.
- Effectively clears trouble codes and improves engine function.
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Cons:
- While compatible with 2018 Malibu, the primary listing title mentions Buick Encore first, which might slightly deter initial searchers.
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User Impressions:
Many users appreciate the plug-and-play nature of this sensor, noting how quickly it resolves persistent engine issues. The fact that it comes well-packaged and thoroughly tested also gives buyers confidence in their purchase.
SZKAIDAG Camshaft Position Sensor for:-Chevy Impala Malibu…

SZKAIDAG brings 30 years of automotive experience to the table with this camshaft position sensor, emphasizing strict quality control at every stage of production. This dedication means you’re getting a part built for high sensitivity, stability, and long-term performance. Its plug-in design makes installation a breeze, ensuring your 2018 Chevy Malibu can quickly get back to optimal engine timing and efficiency.
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Key Features:
- Wide fitment, including 2013-2018 Chevy Malibu models.
- Matches multiple OE numbers for broad compatibility.
- Easy plug-in installation without extensive adjustments.
- High sensitivity and stability for accurate camshaft position information.
- Made from high-quality materials for strength and long-lasting performance.
- Undergoes 100% strict quality control throughout production.
- Long-life design to reduce maintenance costs.
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Pros:
- Manufactured by an experienced automotive company.
- Exceptional accuracy and stability in performance.
- Robust and durable construction designed for longevity.
- Very straightforward installation process.
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Cons:
- Requires careful comparison of OE numbers and potentially VIN verification to ensure exact fit.
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User Impressions:
Customers consistently praise the SZKAIDAG sensor for its perfect fit and ability to resolve persistent check engine light issues. Its perceived durability and accurate performance often exceed expectations for an aftermarket part.
SCITOO Camshaft Position Sensor Fit for Chevy Malibu Impala…

The SCITOO camshaft position sensor stands out for its incredibly broad vehicle compatibility, making it a versatile choice for many Chevrolet and GMC models, including a wide range of Malibu years. Its simple, direct replacement design means you can easily tackle the installation yourself, saving a significant amount on labor costs. It’s a practical and cost-effective solution for restoring your vehicle’s engine performance.
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Key Features:
- Extensive compatibility, covering 2013-2022 Chevrolet Malibu and many other GM vehicles.
- Matches common OE numbers like CMP3041 and 12638266.
- Blade terminal type and black color for standard fit.
- Designed for easy DIY installation, allowing you to replace parts yourself.
- Aims to save you money and time compared to professional repairs.
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Pros:
- Exceptional vehicle fitment breadth.
- Very easy for owners to install without specialized tools.
- Cost-effective replacement option.
- Reliable performance as a direct OE equivalent.
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Cons:
- While broad, always cross-reference OE numbers and fitment details for your specific 2018 Malibu.
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User Impressions:
Reviewers frequently commend SCITOO sensors for their excellent value and ease of installation. Many report that the sensor fits perfectly and immediately resolves engine issues, making it a popular choice for quick and effective repairs.
A-Premium Engine Camshaft Position Sensor Compatible with…

A-Premium’s engine camshaft position sensor is designed with “outstanding quality” and “exceptional durability” in mind, aspiring to meet OE performance requirements. What truly sets it apart is its impressive one-year unlimited-mileage guarantee, offering unparalleled peace of mind. If you’re looking for a reliable, high-quality replacement that’s backed by a strong warranty for your 2018 Chevy Malibu, this could be your pick.
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Key Features:
- Compatible with 2016-2018 Chevrolet Malibu models.
- References key part numbers: 12636947, PC1138.
- Outstanding quality for exceptional durability.
- Meets OE performance requirements.
- Utilizes the latest design and material technology.
- Offers more sensitive response, accurately and quickly detecting information.
- Backed by a one-year unlimited-mileage guarantee.
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Pros:
- Excellent warranty provides significant assurance.
- Built with high-quality materials for longevity.
- Ensures precise and quick signal detection.
- Designed for reliable OE-level performance.
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Cons:
- Malibu compatibility is slightly narrower (2016-2018) compared to some competitors.
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User Impressions:
Customers often highlight the A-Premium sensor’s robust build and the confidence inspired by its unlimited-mileage guarantee. Users report immediate improvements in engine smoothness and a resolution to their check engine light after installation.
12636947 PC1138 235-1882 Camshaft Position Sensor Fits for…

This camshaft position sensor is a straightforward, direct replacement option for a wide array of Chevrolet vehicles, including the 2018 Chevy Malibu. It focuses on core functionality: providing a high-quality, durable part that seamlessly integrates into your vehicle’s system. Its broad compatibility and simple “directly replace” promise make it an appealing choice for a quick and effective repair.
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Key Features:
- Replaces multiple common part numbers (12636947, PC1138, etc.).
- Extensive vehicle fitment, including 2016-2023 Chevrolet Malibu models.
- 3-pin terminal quantity.
- Designed for direct replacement, no modifications needed.
- Made from high-quality, durable, and long-lasting material.
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Pros:
- Very broad compatibility for Malibu and other models.
- Simple plug-and-play installation.
- Durable construction for reliable, long-term use.
- Cost-effective solution to common engine issues.
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Cons:
- Less information provided on specific testing or warranty details compared to some others.
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User Impressions:
Users find this sensor to be a dependable, exact-fit replacement that effectively resolves their engine’s rough running or starting problems. The ease with which it can be swapped out is a significant plus for most customers.
VVT Intake+Exhaust Camshaft Position Actuator…

This product is a comprehensive kit, providing not just a camshaft position sensor but also VVT (Variable Valve Timing) intake and exhaust camshaft position actuators, and even an engine crankshaft position sensor. While it offers a complete solution for certain engine timing issues, it’s crucial to note its specific compatibility: for the Chevrolet Malibu, this kit is listed as compatible with 2008-2014 models only, not the 2018 Chevy Malibu. However, for the vehicles it does fit, it offers a convenient bundle for addressing multiple components related to engine timing and performance.
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Key Features:
- Comprehensive kit including VVT Intake & Exhaust Solenoids, Camshaft Position Sensor, and Crankshaft Position Sensor.
- Matches numerous OE Part Numbers for each component.
- Designed for 2.0L, 2.2L, 2.4L engines in applicable models.
- Aims to restore proper engine timing and VVT system function.
- Provides multiple critical engine sensors in one package.
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Pros:
- Offers a complete solution for VVT and timing-related issues if compatible.
- High-quality components for enhanced engine performance.
- Convenient bundle for tackling multiple related repairs.
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Cons:
- Critical: Not compatible with 2018 Chevy Malibu. Only fits Malibu models from 2008-2014 according to its product description.
- May be overkill if only a camshaft position sensor is needed.
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User Impressions:
For the specific older models it fits, users appreciate the convenience of getting all the crucial timing components in one kit. They report successful resolution of check engine lights and improved engine smoothness, making it a valuable option for targeted older model repairs.
Frequently Asked Questions (FAQ)
Q1: What does a camshaft position sensor do in my 2018 Chevy Malibu?
A1: The camshaft position sensor monitors the exact position and rotational speed of your engine’s camshaft. This information is then sent to your car’s computer (ECU), which uses it to precisely control fuel injection timing and spark plug ignition for optimal engine performance and fuel efficiency.
Q2: How much does it cost to replace a 2018 Chevy Malibu camshaft position sensor?
A2: The cost of the sensor itself can range from $20 to $100+ depending on the brand and quality. If you do it yourself, that’s your only cost. If you hire a mechanic, labor charges can add another $50 to $150, making the total repair anywhere from $70 to $250.
Q3: Can I drive my 2018 Chevy Malibu with a bad camshaft position sensor?
A3: While your car might start and run, it’s not recommended to drive for long with a faulty sensor. It can lead to poor engine performance, decreased fuel economy, stalling, and potentially more serious engine damage over time due to incorrect timing. It’s best to replace it as soon as symptoms appear.
Q4: Is replacing a camshaft position sensor a difficult DIY job for a 2018 Chevy Malibu?
A4: For many 2018 Chevy Malibu models, replacing the camshaft position sensor is considered a relatively straightforward DIY task. It usually involves locating the sensor, disconnecting a wiring harness, unbolting the old sensor, and installing the new one. Most of the products reviewed here emphasize easy, direct replacement. However, always consult your vehicle’s service manual for specific instructions and location.
Q5: What are common trouble codes associated with a bad camshaft position sensor?
A5: The most common diagnostic trouble codes (DTCs) related to a faulty camshaft position sensor are P0340 (Camshaft Position Sensor Circuit Malfunction) and P0341 (Camshaft Position Sensor Circuit Range/Performance Problem). A general misfire code (P0300) might also appear.
Q6: Do I need to clear the check engine light after replacing the sensor?
A6: Yes, after replacing the sensor, it’s a good practice to clear the trouble codes using an OBD-II scanner. Sometimes the light will go off on its own after a few drive cycles if the issue is resolved, but clearing it manually ensures the ECU registers the new sensor correctly and stops flagging the old error.
Q7: Is there a difference between an “intake” and “exhaust” camshaft position sensor?
A7: Yes, many modern engines, including some found in the 2018 Chevy Malibu, have Variable Valve Timing (VVT) systems that utilize both intake and exhaust camshafts. Each camshaft often has its own dedicated position sensor (or actuator/solenoid) to allow for precise control of valve timing. Ensure you identify which sensor needs replacement before purchasing.
Conclusion
A malfunctioning 2018 Chevy Malibu camshaft position sensor can cause a surprising number of headaches, from a nagging check engine light to frustrating engine performance issues. Thankfully, replacing this vital component is often a straightforward fix that you can tackle yourself. By choosing a high-quality, compatible replacement from the options reviewed above, you can restore your Malibu’s smooth operation and get back to enjoying the road with confidence. Remember to always double-check compatibility with your specific vehicle’s engine and year before making a purchase. Happy driving!
