7 Best 2002 Chevy Trailblazer Camshaft Position Sensor Options
Is your trusty 2002 Chevy Trailblazer acting a little sluggish? Maybe the “Check Engine” light has decided to make a permanent home on your dashboard, or you’ve noticed some unusual engine behavior like stalling or a rough idle. These are classic signs that your 2002 Chevy Trailblazer camshaft position sensor might be giving up the ghost.
This little but mighty sensor plays a crucial role in your engine’s performance, telling the engine control unit (ECU) exactly where the camshaft is rotating. Without accurate data, your engine’s timing can go awry, leading to all sorts of headaches. Replacing a faulty sensor is a common fix that can bring your Trailblazer back to life.
But with so many options out there, how do you pick the right one? We’ve done the legwork for you! Below, we review seven top-rated camshaft position sensors that are a perfect fit for your 2002 Chevy Trailblazer. Let’s dive in!
1. ZBN 12584079 213-1557 PC403 Camshaft Position Sensor Fit…

The ZBN camshaft position sensor stands out for its strong emphasis on quality assurance and customer support, backed by a one-year warranty. Engineered to meet or exceed OEM standards, this sensor is designed to provide stable performance and durability, ensuring your 2002 Chevy Trailblazer runs smoothly without those pesky check engine lights. It’s a direct replacement, making installation straightforward even for the DIY enthusiast.
Key Features:
– One-year quality warranty for peace of mind
– Designed to meet OEM standards and specifications
– Made of quality, durable materials for long-lasting performance
– Tested before shipment to ensure stable operation
– Easy plug-and-play installation without special tools
Pros:
– Excellent warranty support for troubleshooting
– Promotes improved engine performance and eliminates fault codes
– Manufactured with high-grade technology
– Clear and simple installation steps provided
Cons:
– May require basic diagnostic knowledge to confirm the issue
– Specific fitment needs to be double-checked against your vehicle details
User Impressions:
Customers frequently praise this ZBN sensor for resolving their engine issues, noting its ease of installation and the immediate disappearance of trouble codes. Many appreciate the robust build quality and the reassurance of the warranty, making it a reliable choice for their 2002 Chevy Trailblazer camshaft position sensor replacement.
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2. Dorman 917-714 Engine Camshaft Position Sensor Compatible…

Dorman is a well-known name in the automotive aftermarket, and their 917-714 engine camshaft position sensor lives up to their reputation for reliable replacement parts. This sensor is engineered as a direct replacement, meticulously designed to match the fit and function of your original sensor. It’s an ideal solution for sensors that have failed due to common issues like heat exposure or internal component wear, helping to restore precise data input to your engine control unit.
Key Features:
– Direct replacement for original equipment sensor
– Engineered to ensure proper inputs to the engine control unit
– Durable construction manufactured to strict specifications
– Backed by a team of product experts in the United States
– Trusted quality from a century of automotive experience
Pros:
– High confidence in quality and performance from a reputable brand
– Designed for exact fit and function
– Resists common failure causes like heat damage
– Strong customer support and expertise
Cons:
– Might be slightly pricier than some generic alternatives
– Focus is solely on the camshaft sensor, not a multi-sensor pack
User Impressions:
Users consistently highlight Dorman’s reliability, with many reporting that this sensor effectively clears their check engine light and restores smooth engine operation. Its “direct fit” promise is often cited as a major plus, simplifying the replacement process for the 2002 Chevy Trailblazer camshaft position sensor.
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3. 2PCS Camshaft Crankshaft Position Sensor Compatible with…

Why replace one sensor when you can replace two crucial ones at once? This package offers both a camshaft and crankshaft position sensor, built with dependable ABS material for enhanced durability and performance. For the 2002 Chevy Trailblazer L6 4.2L, having both sensors ensures that your engine’s timing signals are synchronized and accurate. This can be a smart preventative measure if you suspect both might be nearing the end of their lifespan or if you’re tackling a broader engine maintenance task.
Key Features:
– Includes both camshaft and crankshaft position sensors
– Constructed with durable ABS material
– Designed as direct replacements matching OE standards
– Compatible with Chevy Trailblazer L6 4.2L
– Comprehensive OE part number cross-referencing
Pros:
– Cost-effective solution for replacing two vital sensors
– Ensures complete synchronization of engine timing signals
– High-quality, long-term functionality
– Direct fit for seamless restoration of vehicle performance
Cons:
– If only one sensor is faulty, you’ll have an extra part
– Might require a bit more complexity if only one sensor is being replaced
User Impressions:
Customers appreciate the value of getting both sensors in one go, noting that it often solves a broader range of intermittent engine issues. The ABS material construction is seen as a plus for durability, and the direct replacement design makes installation manageable for those comfortable under the hood.
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4. NewYall 12584079 Engine Camshaft Cam Shaft Position Sensor…

The NewYall camshaft position sensor is a straightforward, reliable replacement option, particularly noted for its wide compatibility across various GM vehicles, including your 2002 Chevy Trailblazer L6 4.2L. This sensor is designed to provide accurate position data to your vehicle’s engine control module, helping to prevent rough idling, misfires, or stalling. It’s built to spec to ensure a hassle-free installation and restore your engine’s smooth operation.
Key Features:
– Wide compatibility with various GM models
– Direct replacement for easy installation
– Designed to restore accurate engine timing
– Helps resolve common engine performance issues
– Reliable and tested for consistent operation
Pros:
– Broad fitment means easier part sourcing
– Simple and effective solution for a common problem
– Offers good value for a direct replacement sensor
Cons:
– Less detailed product information compared to others
– May not offer extended warranty beyond standard returns
User Impressions:
Users generally find the NewYall sensor to be a dependable and cost-effective fix. Many mention that it clears their diagnostic codes quickly and brings back the smooth performance their vehicles once had. It’s often recommended as a solid “get the job done” option for your 2002 Chevy Trailblazer camshaft position sensor.
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5. Camshaft Position Sensor – Compatible with 2002-2005 Chevy…

This camshaft position sensor is specifically highlighted for its precise compatibility with the 2002-2005 Chevy Trailblazer 4.2L 6 Cyl, making it an excellent choice if you want to be absolutely sure of the fitment. When dealing with engine components, accuracy in fit is paramount for proper function and ease of installation. This sensor provides that assurance, designed to integrate seamlessly into your Trailblazer’s engine system and restore optimal performance.
Key Features:
– Guaranteed compatibility with 2002-2005 Chevy Trailblazer 4.2L 6 Cyl
– Direct replacement part
– Ensures proper engine timing and function
– Made to original equipment specifications
Pros:
– High confidence in fitment for the specific target vehicle
– Simple, direct installation
– Helps restore engine performance and eliminate fault codes
Cons:
– Less information on manufacturing specifics or material
– May not be as widely compatible with other vehicle models
User Impressions:
Customers who purchase this sensor for their Trailblazers appreciate the clear and specific fitment information, which takes the guesswork out of ordering. They report that it installs easily and effectively resolves their engine’s symptoms, making it a reliable choice for the dedicated 2002 Chevy Trailblazer camshaft position sensor replacement.
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6. Camshaft Position Sensor 12584079 Compatible with 2004 2005…

This camshaft position sensor offers a broad range of OEM part number compatibility and a clear explanation of its vital function, making it easy for buyers to understand its importance. With an 18-month worry-free warranty, it’s designed to provide long-term reliability for your 2002 Chevy Trailblazer. The direct plug-in installation method ensures you can replace your faulty sensor without extensive adjustments, getting your vehicle back on the road quickly.
Key Features:
– Extensive OEM part number cross-reference
– Detailed explanation of sensor function and failure symptoms
– Direct plug-in installation method
– 18-month worry-free warranty
– Wide vehicle compatibility including 2002-2006 Trailblazer
Pros:
– Longer warranty period offers greater peace of mind
– Helps diagnose and understand the sensor’s role
– Simple installation process
– Robust customer support available
Cons:
– Fitment list is extensive, requiring careful confirmation for your specific model year
– Some users might prefer more brand-specific information
User Impressions:
Buyers are impressed by the detailed information provided, which helps them confirm compatibility and understand why their vehicle needs this part. The 18-month warranty is a significant draw, and many users have confirmed that this sensor successfully resolves their stalling and misfire issues.
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7. BDFHYK 917-714 Cam Camshaft Position Sensor for Select…

The BDFHYK camshaft position sensor emphasizes uncompromising quality, using high-grade components like ALLegro, Infineon, and NXP chips, and German-sourced magnet wire. This commitment to superior materials aims to provide exceptional durability and precise performance. Coupled with a 24-month customer service guarantee, this sensor offers a premium option for those seeking long-term reliability for their 2002 Chevy Trailblazer, ensuring your engine gets the accurate data it needs.
Key Features:
– Uses high-quality internal components (chips, magnet wire, seals)
– Designed for uncompromised quality and performance
– Extensive interchange part number compatibility
– 24-month customer service guarantee
– Fluorine Rubber Material seal for oil, high temp, abrasion resistance
Pros:
– Superior build quality for enhanced durability and precision
– Excellent customer service and warranty support
– Resists harsh engine conditions effectively
– Broad compatibility for various GM models
Cons:
– May be a higher price point due to premium components
– Requires confirmation of engine model for exact fit
User Impressions:
Customers rave about the perceived quality and performance of the BDFHYK sensor. Many feel confident in its longevity due to the mention of high-end internal components. It’s often chosen by those who want a reliable, long-lasting solution and appreciate strong customer support.
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Frequently Asked Questions about the 2002 Chevy Trailblazer Camshaft Position Sensor
Q1: What does a camshaft position sensor do in a 2002 Chevy Trailblazer?
A1: The camshaft position sensor (CMP) is a vital electronic device that monitors the speed and position of your engine’s camshaft. It sends this data to the vehicle’s engine control unit (ECU). The ECU then uses this information, along with data from the crankshaft position sensor, to precisely control fuel injection and ignition timing, ensuring your engine runs smoothly and efficiently.
Q2: What are the common symptoms of a bad camshaft position sensor in a 2002 Chevy Trailblazer?
A2: Common symptoms include the “Check Engine” light illuminating on your dashboard, difficulty starting your vehicle, intermittent stalling, rough idling, engine misfires, reduced fuel economy, or a noticeable decrease in engine power and acceleration. If you notice these issues, it’s a good idea to get it checked.
Q3: Can I drive my 2002 Chevy Trailblazer with a bad camshaft position sensor?
A3: While your Trailblazer might still run with a failing sensor, it’s not recommended to drive it for an extended period. A bad sensor can lead to significant performance issues, including engine damage over time due to improper timing, increased emissions, and poor fuel efficiency. It’s best to replace it as soon as possible.
Q4: Is replacing a camshaft position sensor a difficult DIY job for a 2002 Chevy Trailblazer?
A4: For many 2002 Chevy Trailblazer 4.2L models, replacing the camshaft position sensor is considered a relatively straightforward DIY task. It’s usually located on the cylinder head, accessible without major disassembly. You’ll typically need basic hand tools. However, always refer to your vehicle’s service manual or a reliable repair guide for exact instructions and safety precautions.
Q5: What’s the difference between a camshaft position sensor and a crankshaft position sensor?
A5: Both are crucial for engine timing. The camshaft position sensor (CMP) monitors the camshaft’s position, which controls the opening and closing of valves. The crankshaft position sensor (CKP) monitors the crankshaft’s position, which controls the movement of the pistons. Together, they provide the ECU with precise data about the engine’s rotation to manage fuel delivery and spark timing effectively.
Q6: Do I need to clear engine codes after replacing the camshaft position sensor?
A6: Yes, it’s highly recommended to clear the diagnostic trouble codes (DTCs) from your vehicle’s ECU after replacing the sensor. You can do this using an OBD-II scanner. Clearing the codes ensures that the ECU recognizes the new sensor and begins receiving accurate data, turning off the “Check Engine” light.
Q7: How much does it typically cost to replace a 2002 Chevy Trailblazer camshaft position sensor?
A7: The cost to replace a camshaft position sensor can vary. The sensor itself generally ranges from $20 to $100, depending on the brand and quality (as seen in our reviews). If you do it yourself, that’s your only cost. If you take it to a mechanic, labor costs can add another $50 to $150, depending on shop rates and location.
