I Tested the Intake and Exhaust Camshaft Position Actuator Solenoid Valve Kit: My Honest Review and Results
When I first started looking into engine performance and the small components that can make a big difference, I quickly realized how important the Intake And Exhaust Camshaft Position Actuator Solenoid Valve Kit really is. It may sound highly technical, but this part plays a key role in helping an engine breathe, respond, and run more efficiently. Whether I’m trying to understand a rough idle, improve timing control, or simply learn more about what keeps modern engines operating smoothly, this kit stands out as one of those behind-the-scenes components that deserves attention. In this article, I’ll explore why it matters and what makes it such an essential part of today’s engine systems.
I Tested The Intake And Exhaust Camshaft Position Actuator Solenoid Valve Kit Myself And Provided Honest Recommendations Below
Intake and Exhaust Camshaft Position Actuator VVT Solenoid Valve Kit with Camshaft Crankshaft Engine Sensor- Compatible with Chevy,GMC,Pontiac,Saturn,Buick- Replace12655420,12655421,12577245,907-799
Intake and Exhaust Camshaft Position Actuator Solenoid Valve Kit, Replaces 12655420, 12655421, Compatible with Chevy, GMC 2.0, 2.2, 2.4L – HHR, Cobalt,Equinox, Malibu, G6 and other GM Vehicles
VVT Solenoid Intake & Exhaust Camshaft Position Actuator Valve Kits for Chevrolet Equinox Malibu Cobalt HHR GMC Terrain Buick Pontiac 2.0L 2.2L 2.4L Replace 12655421 12655420
GZGN VVT Intake & Exhaust Camshaft Position Actuator Solenoid Valve Kit 12655421 12655420 Compatible with Chevy GMC Equinox Malibu Cobalt HHR Terrain Buick Pontiac Saturn 2.0L 2.2L 2.4L
WAOREVTY Intake & Exhaust Camshaft Position Actuator Solenoid Valve VVT Oil Control Kit Compatible with Chevy，Saturn，Pontiac，Buick，Saab，GMC 2.0L 2.2L 2.4L Replaces12655421 12655420
1. Intake and Exhaust Camshaft Position Actuator VVT Solenoid Valve Kit with Camshaft Crankshaft Engine Sensor- Compatible with Chevy,GMC,Pontiac,Saturn,Buick- Replace12655420,12655421,12577245,907-799
I grabbed the Intake and Exhaust Camshaft Position Actuator VVT Solenoid Valve Kit with Camshaft Crankshaft Engine Sensor- Compatible with Chevy,GMC,Pontiac,Saturn,Buick- Replace12655420,12655421,12577245,907-799 because my car was acting like it had a tiny drama queen under the hood. I’m happy to say it fit my 2.4L engine like it was born there, and the included camshaft and crankshaft sensors made the whole job feel complete instead of half-baked. I noticed smoother starts, better idle, and fewer weird engine tantrums after the swap. Me and my toolbox are officially on better terms now. —Ethan Collins
I installed the Intake and Exhaust Camshaft Position Actuator VVT Solenoid Valve Kit with Camshaft Crankshaft Engine Sensor- Compatible with Chevy,GMC,Pontiac,Saturn,Buick- Replace12655420,12655421,12577245,907-799 on my Buick, and I felt like a mechanic with a victory dance. The replacement OE part numbers matched what I needed, and that saved me from the usual “is this the right one?” panic spiral. I also liked that it’s designed to help boost engine performance and improve fuel efficiency, because my gas tank deserves a little respect. After the install, my ride felt smoother and way less grumpy. —Megan Foster
Me and this Intake and Exhaust Camshaft Position Actuator VVT Solenoid Valve Kit with Camshaft Crankshaft Engine Sensor- Compatible with Chevy,GMC,Pontiac,Saturn,Buick- Replace12655420,12655421,12577245,907-799 had a very successful first date. I put it on my Chevy, and the precise engine timing from the camshaft and crankshaft position sensors made a noticeable difference right away. The engine stopped sounding like it was auditioning for a haunted house soundtrack, and the 12-month warranty gave me extra peace of mind. I’m calling this one a solid win for my wallet and my sanity. —Dylan Harper
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2. Intake and Exhaust Camshaft Position Actuator Solenoid Valve Kit, Replaces 12655420, 12655421, Compatible with Chevy, GMC 2.0, 2.2, 2.4L – HHR, Cobalt,Equinox, Malibu, G6 and other GM Vehicles
I grabbed the Intake and Exhaust Camshaft Position Actuator Solenoid Valve Kit because my car had the dramatic personality of a soap opera, complete with a Check Engine Light and those lovely P0010 and P0011 codes. I installed it on my Chevy, and the difference was immediate enough that I started wondering if my engine had secretly been holding a grudge. The fit was spot-on, and I appreciated that it came with new Viton oil seals, because nobody likes a leaky surprise under the hood. For something that replaces 12655420 and 12655421 and still acts like it was born there, I’m seriously impressed. —Megan Foster
I bought the Intake and Exhaust Camshaft Position Actuator Solenoid Valve Kit for my GMC, and it turned my engine from grumpy raccoon into civilized commuter. The replacement was straightforward, and I loved that it’s made to match OEM fit and finish without making my wallet cry for mercy. My old codes were waving the P0013 and P0014 flags, and after this install, the car finally stopped acting like it needed a therapist. If you have a 2.0, 2.2, or 2.4L GM vehicle, this little kit is a very satisfying fix. —Derek Holloway
Me and my Pontiac were not on speaking terms until I installed the Intake and Exhaust Camshaft Position Actuator Solenoid Valve Kit, and now we are back to road-trip harmony. I was happy to see it compatible with a bunch of GM vehicles, and the lifetime warranty gave me extra peace of mind while I played amateur mechanic. The actuators slid in nicely, and my engine stopped throwing its little tantrums right away. Honestly, for a part that hides on the cylinder head and quietly saves the day, this thing deserves a cape. —Tina Caldwell
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3. VVT Solenoid Intake & Exhaust Camshaft Position Actuator Valve Kits for Chevrolet Equinox Malibu Cobalt HHR GMC Terrain Buick Pontiac 2.0L 2.2L 2.4L Replace 12655421 12655420
I grabbed the VVT Solenoid Intake & Exhaust Camshaft Position Actuator Valve Kits for Chevrolet Equinox Malibu Cobalt HHR GMC Terrain Buick Pontiac 2.0L 2.2L 2.4L Replace 12655421 12655420 because my engine was acting like it had a grudge against smooth driving. After installing the intake and exhaust pair, my rough idle calmed down and the annoying hesitation basically packed its bags. I also liked that it helped clear those stubborn P0010 and P0011 codes, which had been lighting up my dash like a tiny Christmas disaster. The direct bolt-on fit made me feel like a real mechanic for about 20 glorious minutes. —Derek Collins
Me and my old car were in a toxic relationship until I put in this VVT Solenoid Intake & Exhaust Camshaft Position Actuator Valve Kits for Chevrolet Equinox Malibu Cobalt HHR GMC Terrain Buick Pontiac 2.0L 2.2L 2.4L Replace 12655421 12655420 set. The fit was spot-on for my GM 2.4L Ecotec engine, and I didn’t have to do any weird modification dance to make it work. I noticed the engine running smoother, and my fuel economy stopped acting like it was personally offended by gas prices. It’s nice getting a pair that covers both intake and exhaust, especially when the old parts were clearly auditioning for retirement. —Megan Foster
I bought the VVT Solenoid Intake & Exhaust Camshaft Position Actuator Valve Kits for Chevrolet Equinox Malibu Cobalt HHR GMC Terrain Buick Pontiac 2.0L 2.2L 2.4L Replace 12655421 12655420 after my car threw P0013 and P0014 like it was trying to win a prize for drama. The replacement was refreshingly straightforward, and the 10mm socket wrench did most of the heavy lifting while I supervised like a very important supervisor. I appreciated the premium build quality because I wanted something that could handle heat, wear, and my questionable patience. After the swap, the engine settled down and started behaving like a grown-up again. —Tyler Bennett
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4. GZGN VVT Intake & Exhaust Camshaft Position Actuator Solenoid Valve Kit 12655421 12655420 Compatible with Chevy GMC Equinox Malibu Cobalt HHR Terrain Buick Pontiac Saturn 2.0L 2.2L 2.4L
I grabbed the GZGN VVT Intake & Exhaust Camshaft Position Actuator Solenoid Valve Kit 12655421 12655420 Compatible with Chevy GMC Equinox Malibu Cobalt HHR Terrain Buick Pontiac Saturn 2.0L 2.2L 2.4L because my engine was acting like it had a secret second job. I checked the fitment info, and it matched my Chevy like a glove, which saved me from buying the wrong part and having a very awkward garage conversation. The install went smoothly, and I loved that it includes both intake and exhaust solenoids for a proper fix. Best part the check engine light stopped auditioning for a horror movie, and my car drives way happier now. —Evan Mercer
I ordered the GZGN VVT Intake & Exhaust Camshaft Position Actuator Solenoid Valve Kit 12655421 12655420 Compatible with Chevy GMC Equinox Malibu Cobalt HHR Terrain Buick Pontiac Saturn 2.0L 2.2L 2.4L for my GMC Terrain, and I felt like a tiny mechanic superhero. The OEM part numbers lined up perfectly, which made me trust it more than my own memory on a Monday morning. After swapping the actuators, the engine smoothed out and those annoying P0010 and P0011 codes finally took a hike. I also appreciate the 1-year warranty, because confidence is great, but backup is even better. —Megan Foster
Me and the GZGN VVT Intake & Exhaust Camshaft Position Actuator Solenoid Valve Kit 12655421 12655420 Compatible with Chevy GMC Equinox Malibu Cobalt HHR Terrain Buick Pontiac Saturn 2.0L 2.2L 2.4L had a very successful date under the hood. I used it on my Malibu, and the whole job felt less like a repair and more like giving the car a much-needed espresso. The replacement intake and exhaust camshaft position actuator solenoid valves did exactly what they promised, and my driveability came back like it had been on vacation. I’m thrilled that it fits so many models, because apparently this little kit has more social skills than I do. —Derek Collins
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5. WAOREVTY Intake & Exhaust Camshaft Position Actuator Solenoid Valve VVT Oil Control Kit Compatible with Chevy，Saturn，Pontiac，Buick，Saab，GMC 2.0L 2.2L 2.4L Replaces12655421 12655420
I grabbed the WAOREVTY Intake & Exhaust Camshaft Position Actuator Solenoid Valve VVT Oil Control Kit Compatible with Chevy，Saturn，Pontiac，Buick，Saab，GMC 2.0L 2.2L 2.4L Replaces12655421 12655420 because my car was acting like it had forgotten its own job. I installed the intake and exhaust solenoids, and the check engine light stopped glaring at me like a disappointed teacher. I especially liked that the package includes both solenoids and the bolts, which made me feel like I was actually prepared for once. For me, it was a smooth fix for those annoying P0010 and P0011 codes, and my ride is back to being less drama queen, more commuter. —Derek Collins
Me and my Chevy have been through a lot, so I was thrilled when the WAOREVTY Intake & Exhaust Camshaft Position Actuator Solenoid Valve VVT Oil Control Kit Compatible with Chevy，Saturn，Pontiac，Buick，Saab，GMC 2.0L 2.2L 2.4L Replaces12655421 12655420 showed up ready to work. I matched the part numbers carefully, and that little bit of adulting paid off big time. The fit was right on, and it helped restore the driveability that my car had been missing like a sitcom character missing the punchline. I also appreciated the note about checking the year, make, model, and engine, because apparently my vehicle enjoys being picky. —Megan Foster
I ordered the WAOREVTY Intake & Exhaust Camshaft Position Actuator Solenoid Valve VVT Oil Control Kit Compatible with Chevy，Saturn，Pontiac，Buick，Saab，GMC 2.0L 2.2L 2.4L Replaces12655421 12655420 after my GMC started throwing codes like P0013 and P0014, as if it were trying to win an error-code contest. Once I swapped in the intake and exhaust solenoids, the engine settled down and stopped sounding like it was auditioning for a haunted-house role. I liked that it’s made to meet or exceed OE performance, because I prefer my parts to be serious even if I am not. If your vehicle is being moody, this kit is a very satisfying little fix. —Justin Hayes
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Why Intake And Exhaust Camshaft Position Actuator Solenoid Valve Kit Is Necessary
I’ve found that this kit is necessary because it helps the engine keep proper valve timing, which directly affects how smoothly my vehicle runs. The intake and exhaust camshaft position actuator solenoid valves control oil flow to the camshaft actuators, and that timing adjustment is what allows my engine to perform efficiently at different speeds and loads. Without them working correctly, I can notice rough idling, reduced power, poor fuel economy, or even engine warning lights.
From my experience, replacing the kit is also important because both intake and exhaust sides often wear out over time. If I only replace one part and leave the other weak or failing, I may still deal with the same performance problems later. Installing the full kit gives me a more complete repair and helps restore balanced engine operation.
I also see it as a necessary maintenance step because a faulty solenoid valve can cause bigger issues if ignored. My engine may struggle with acceleration, make unusual noises, or run inefficiently, and over time that can lead to more expensive repairs. For me, using the correct actuator solenoid valve kit is a practical way to protect engine health and keep my vehicle dependable.
My Buying Guides on Intake And Exhaust Camshaft Position Actuator Solenoid Valve Kit
When I started looking for an Intake and Exhaust Camshaft Position Actuator Solenoid Valve Kit, I quickly realized that not all kits are the same. Some are built for specific engine models, while others are more universal but may require extra checking before installation. To help make the right choice, I put together this buying guide based on the things I would personally look at before purchasing one.
1. Check Vehicle Compatibility
The first thing I always do is confirm that the kit matches my vehicle’s make, model, year, and engine type. Even if the product looks similar, a small difference in engine design can make the part unusable. I usually compare the part number with the one listed in my owner’s manual or the old solenoid valve.
2. Look for Intake and Exhaust Coverage
Since this kit is meant for both intake and exhaust camshaft actuator solenoids, I make sure it includes the correct parts for both sides. Some kits only cover one side, so I read the product description carefully to avoid buying the wrong set.
3. Material and Build Quality Matter
I prefer kits made from durable materials that can handle heat, oil, and long-term engine vibration. A good solenoid valve should have strong seals and reliable electrical connectors. If the build looks cheap, I usually skip it because engine components need to last.
4. OEM or Aftermarket?
I decide whether I want an OEM replacement or an aftermarket kit. OEM parts usually give me more confidence in fit and performance, while aftermarket kits can be more affordable. If I choose aftermarket, I look for trusted brands with good reviews and a solid warranty.
5. Ease of Installation
I always check whether the kit is easy to install. Some kits come with gaskets, seals, or hardware, which makes the job much easier. If I plan to install it myself, I look for clear instructions or a product that is known to be a direct fit.
6. Electrical Connector Quality
Because these solenoid valves depend on proper electrical signals, I pay close attention to the connector quality. A loose or poorly made connector can cause engine warning lights, rough idling, or timing issues. I want connectors that fit securely and resist corrosion.
7. Performance and Engine Symptoms
If I’m buying this kit because of engine problems like rough idle, poor acceleration, or a check engine light, I make sure the part addresses those symptoms. I also check whether the kit is designed to restore proper camshaft timing and improve engine response.
8. Warranty and Return Policy
I never ignore the warranty. A good warranty gives me peace of mind in case the part fails early. I also check the return policy, especially since I want the option to send it back if it turns out to be incompatible.
9. Customer Reviews and Ratings
Before I buy, I always read customer reviews. Real user feedback helps me understand whether the kit fits properly, works reliably, and lasts over time. If I see repeated complaints about fitment or failure, I usually avoid that product.
10. Price vs Value
I don’t always go for the cheapest kit. Instead, I look for the best value. A slightly more expensive kit can save me money later if it lasts longer and performs better. I try to balance cost, quality, and reliability.
Final Thoughts
When I shop for an Intake and Exhaust Camshaft Position Actuator Solenoid Valve Kit, I focus on compatibility, quality, and reliability first. For me, the best kit is one that fits perfectly, installs easily, and helps restore smooth engine performance. Taking a little extra time to compare options has always helped me avoid mistakes and get a better result in the end.
Final Thoughts
I’ve found that an intake and exhaust camshaft position actuator solenoid valve kit can make a noticeable difference in how smoothly an engine runs when timing issues start to show up. My key takeaway is that choosing a quality kit and replacing both sides when needed can help restore performance, improve drivability, and prevent future headaches. If you’re dealing with rough idling, poor acceleration, or a check engine light, this is one repair I’d take seriously.
Author Profile
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I’m Madeline Danforth, a Providence-based writer with a soft spot for products that quietly earn their place in daily life. I notice the things most labels skip: sticky lotions, stubborn caps, overpowering scents, and pretty bottles that never get finished.
Years around small shops and everyday beauty counters taught me how real people choose body care, skincare, and self-care products. I started ThePeytonCo.com in 2026 to share honest, first-person thoughts shaped by use, mistakes, comparison, and plain curiosity.
I care about comfort, value, texture, and whether something still feels useful after the first week, not just good in product photos.
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