5 Best Camshaft Position Sensor for 2004 Chevy Trailblazer: Top Picks & Buyer’s Guide
If you own a 2004 Chevy Trailblazer, you know it’s a trusty ride. But even the most dependable vehicles have parts that eventually need attention. One of those crucial components is the camshaft position sensor. When this little guy starts acting up, it can cause all sorts of headaches, from a pesky Check Engine Light to rough idling and even stalling. Nobody wants that, right?
Finding the right replacement can feel like a chore with so many options out there. That’s why we’ve put together this guide to help you pick the best camshaft position sensor 2004 Chevy Trailblazer needs. We’ll walk you through our top picks, highlight their features, and give you the lowdown on what real users think. Let’s dive in!
Why is the Camshaft Position Sensor So Important?
Think of your camshaft position sensor as a critical communication device for your engine. It tells your vehicle’s computer (the ECM or PCM) exactly where the camshaft is rotated at any given moment. This information is vital for the computer to precisely control spark timing and fuel injection. Without accurate data from this sensor, your engine can’t run efficiently, leading to performance issues and those annoying dashboard warning lights.
Common symptoms of a failing camshaft position sensor 2004 Chevy Trailblazer owners often experience include:
- Illuminated Check Engine Light (often with codes like P0340)
- Difficulty starting or intermittent stalling
- Rough idling or engine misfires
- Reduced engine power or uneven acceleration
- Poor fuel economy
If you’re noticing any of these signs, it’s likely time for a replacement.
Our Top 5 Camshaft Position Sensor Picks for 2004 Chevy Trailblazer
Here are our hand-picked selections, reviewed for quality, performance, and user satisfaction.
1. Camshaft Position Sensor 12584079 Compatible with 2004 2005… (by A-NAFTULY)
This camshaft position sensor from A-NAFTULY stands out for its extensive vehicle compatibility and an impressive 18-month warranty, giving you extra peace of mind. If you’re looking for a reliable replacement that’s backed by solid customer support, this one is definitely worth considering. It’s designed to be a direct fit, making installation straightforward even for the DIY enthusiast.
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Key Features:
- OEM Part Numbers: 12584079, 12568715, 12571266, PC403, 917-714, etc.
- Wide compatibility beyond just the Trailblazer (Colorado, Cobalt, Envoy, Rainier, etc.)
- Direct replacement with plug-in installation
- Measures camshaft rotation and position for ECM data
- Includes 18-month worry-free warranty
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Pros:
- Excellent warranty period for long-term confidence
- Broad vehicle fitment means good stock availability
- Simple, direct plug-and-play installation
- Effectively resolves common sensor failure symptoms
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Cons:
- Brand might be less recognized than some aftermarket options
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User Impressions:
Customers generally find this sensor easy to install and effective at resolving their vehicle’s issues. The generous warranty is a significant plus for many users, offering reassurance about their purchase. It’s often praised for its “perfect fit” and quick troubleshooting of Check Engine Light codes.
2. ZBN 12584079 213-1557 PC403 Camshaft Position Sensor Fit…
The ZBN camshaft position sensor prides itself on stable performance and durable construction, promising a long-lasting solution for your Trailblazer. What sets this one apart is its emphasis on quality control – each sensor is tested before shipment and adheres to OEM standards. Plus, it even provides clear installation steps, which is a nice touch for those tackling the job themselves.
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Key Features:
- Meets OEM standards and specifications
- Made of quality, durable materials
- Features stable performance
- Easy to install, no special tools required
- Includes detailed installation steps
- Comes with a one-year quality warranty
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Pros:
- High-grade technology ensures reliable operation
- Claimed to improve performance and eliminate trouble codes
- Warranty provides good coverage
- Helpful installation guidance included
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Cons:
- Might not be as widely available as some generic options
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User Impressions:
Users appreciate the robust build quality and the fact that it resolves their engine issues quickly. The direct replacement design means no calibration needed, which makes the DIY process smoother. Many have reported a noticeable improvement in engine smoothness after installation.
3. Camshaft Position Sensor Compatible with 2004 2005 2006… (by IFATRUNK)
This sensor from IFATRUNK is another solid choice for your 2004 Chevy Trailblazer, known for its extensive compatibility list that spans many GM and related models. It highlights the sensor’s crucial function in providing real-time data to the ECU, making it clear how important it is for optimal engine performance. If you’re looking for a reliable part that clearly states its wide range of applications, this is a strong contender.
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Key Features:
- OEM Number: PC403, 917-714, 12584079, 213-1557, etc.
- Broad compatibility with Chevrolet, GMC, Buick, Saab, Oldsmobile, Saturn, Isuzu, Hummer.
- Provides camshaft rotation angle and position signals to ECU
- Direct replacement, easy plug-and-play installation
- Aids in resolving hard starting, weak acceleration, and engine shaking
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Pros:
- Very wide vehicle application for cross-compatibility
- Simple “plug and play” installation process
- Clearly explains the sensor’s function and related symptoms
- Responsive customer support mentioned
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Cons:
- Specific warranty period is not explicitly detailed in the features provided
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User Impressions:
Many users praise this sensor for its perfect fit and ease of installation, noting that it resolved their Check Engine Light and performance issues right away. It’s often seen as a reliable and cost-effective alternative to OEM parts, providing excellent value.
4. YIEXOVA Camshaft Position Sensor 12584079 Compatible with…
The YIEXOVA camshaft position sensor is a strong contender, mirroring many of the excellent features found in our first pick, including a generous 18-month warranty. This sensor is crucial for regulating spark timing and fuel injection, and YIEXOVA makes sure you know it’s a direct replacement designed to get your Trailblazer back on track quickly. It’s a great option if you want robust support and a part built to match original specifications.
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Key Features:
- OEM Part Number: 12584079, 213-1557, PC403, etc.
- Compatible with a wide range of Chevrolet, GMC, Buick, Hummer, Saab, Oldsmobile, Saturn, and Isuzu models.
- Direct replacement with plug-in installation method
- Determines camshaft rotating position for engine control
- Includes 18-month worry-free warranty and dedicated customer support
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Pros:
- Excellent extended warranty for peace of mind
- Comprehensive list of compatible vehicles
- Designed for straightforward, no-fuss installation
- Effectively addresses various engine symptoms caused by sensor failure
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Cons:
- Similar to some other brands, not a household name
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User Impressions:
Customers consistently report that this sensor provides an exact fit and is simple to install. The 18-month warranty stands out as a major confidence booster, and users appreciate that it quickly resolves performance issues like hard starts and misfires.
5. Camshaft Position Sensor 12584079 Compatible with Chevy… (by YINZHIGUO)
Manufactured by YINZHIGUO, this camshaft position sensor emphasizes universal fitment across various GM models and reliable performance that meets or exceeds OEM specifications. If you’re prioritizing a replacement part that feels as close to genuine as possible, without the OEM price tag, this one aims to deliver. Its quality construction ensures it can withstand the rigors of regular use.
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Key Features:
- Universal fit for Buick, Saturn, Hummer, Pontiac, GMC models (including Envoy, Canyon)
- Replaces OEM Part Numbers: 917-714, 213-1557, 12584079, PC403, etc.
- Manufactured to meet or exceed OEM specifications
- Designed as a direct replacement for easy installation
- Crafted with high-quality materials for durability
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Pros:
- Strong focus on meeting or exceeding OEM quality
- Durable construction promises long service life
- Very straightforward, no-modification installation
- Good value for the quality offered
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Cons:
- Less specific details on warranty and customer service compared to some others
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User Impressions:
Users find this sensor to be a dependable, high-quality replacement. Its direct fit and durable feel are frequently mentioned, with many customers satisfied that it performs just as well as the original part. It’s often recommended for its reliability and ease of replacement.
Frequently Asked Questions (FAQ)
Got more questions about your camshaft position sensor 2004 Chevy Trailblazer? We’ve got answers!
Q1: What are the most common symptoms of a bad camshaft position sensor on a 2004 Chevy Trailblazer?
A1: The most common symptoms include your Check Engine Light coming on (often with a P0340 diagnostic trouble code), difficulty starting the engine, intermittent stalling, rough idling, engine misfires, reduced power, or uneven acceleration.
Q2: Can I replace the camshaft position sensor myself on my 2004 Chevy Trailblazer?
A2: Yes, for many DIYers, replacing the camshaft position sensor on a 2004 Chevy Trailblazer is a relatively straightforward job. It typically involves locating the sensor, disconnecting the electrical connector, removing a retaining bolt, and then installing the new sensor in reverse order. Always refer to your vehicle’s service manual or an online tutorial for specific steps.
Q3: Where is the camshaft position sensor located on a 2004 Chevy Trailblazer?
A3: On the 4.2L inline-six engine (most common in the 2004 Trailblazer), the camshaft position sensor is typically located near the front of the engine, often close to the cylinder head or valve cover area. Its exact position can vary slightly, so checking a repair manual for your specific engine is always recommended.
Q4: Will a faulty camshaft position sensor cause my 2004 Chevy Trailblazer to not start at all?
A4: Yes, a completely failed camshaft position sensor can definitely prevent your 2004 Chevy Trailblazer from starting. The engine’s computer needs the signal from this sensor to know when to fire the spark plugs and inject fuel. Without it, the engine might crank but won’t “catch” and start.
Q5: Is it safe to drive with a bad camshaft position sensor?
A5: It’s generally not recommended to drive with a bad camshaft position sensor. While your vehicle might still run, it could experience sudden stalling, loss of power, or unpredictable engine behavior, which can be dangerous, especially in traffic. Continued driving can also lead to other engine damage over time.
Q6: Do I need to clear the Check Engine Light after replacing the sensor?
A6: After replacing the sensor, the Check Engine Light might turn off on its own after a few drive cycles, or you might need to manually clear the diagnostic trouble codes (DTCs) using an OBD-II scanner. Clearing the codes is a good practice to confirm the repair has resolved the issue.
Q7: Are aftermarket camshaft position sensors as good as OEM parts?
A7: Many aftermarket camshaft position sensors are designed to meet or exceed OEM (Original Equipment Manufacturer) specifications and can provide excellent performance and reliability at a more affordable price. Look for sensors with good reviews, strong warranties, and clear fitment information, like the ones reviewed in this article.
Wrapping Up
Replacing a faulty camshaft position sensor 2004 Chevy Trailblazer can be a game-changer for your vehicle’s performance and reliability. By choosing one of our top picks, you’re investing in a quality part that can help restore your Trailblazer to its former glory. Remember to always double-check compatibility for your specific model and engine before purchasing. Happy driving!
