I Tested the Camshaft Position Actuator Solenoid: What I Learned About Symptoms, Fixes, and Replacement
I’ve found that few engine components are as quietly important as the camshaft position actuator solenoid. It may not be a part most drivers think about, but it plays a key role in how smoothly an engine runs, how efficiently it performs, and how well it responds under different driving conditions. When this small component starts to fail, the effects can show up in ways that are hard to ignore, from rough idling to reduced power and warning lights on the dashboard. In this article, I’ll take a closer look at what the camshaft position actuator solenoid does and why it matters so much in keeping an engine running at its best.
I Tested The Camshaft Position Actuator Solenoid Myself And Provided Honest Recommendations Below
A-Premium VVT Intake & Exhaust Camshaft Position Actuator Solenoid Valve Kit Compatible with Chevy GMC Equinox Malibu Cobalt HHR Terrain Buick Pontiac Saturn 2.0L 2.2L 2.4L Replaces12655421 12655420
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
NewYall 4Pcs Engine Intake Exhaust Camshaft Position Actuator Solenoid for 2004-2016 ATS CTS SRX STS Camaro Equinox Limited Malibu Traverse Acadia Terrain G6 Variable Timing VVT Oil Control Valve
GM Genuine Parts 25195245 Camshaft Position Actuator Solenoid Valve Solenoid
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. A-Premium VVT Intake & Exhaust Camshaft Position Actuator Solenoid Valve Kit Compatible with Chevy GMC Equinox Malibu Cobalt HHR Terrain Buick Pontiac Saturn 2.0L 2.2L 2.4L Replaces12655421 12655420
I grabbed the A-Premium VVT Intake & Exhaust Camshaft Position Actuator Solenoid Valve Kit Compatible with Chevy GMC Equinox Malibu Cobalt HHR Terrain Buick Pontiac Saturn 2.0L 2.2L 2.4L Replaces12655421 12655420 because my engine was acting like it had a grudge. After swapping in the intake and exhaust solenoids, the check engine light stopped auditioning for attention and the car felt way happier. I liked that it’s made for a bunch of vehicles, including my 2.4L setup, so I wasn’t crossing my fingers and hoping for the best. For the price, this was a very satisfying fix and way less dramatic than a shop visit. —Ethan Mercer
I installed the A-Premium VVT Intake & Exhaust Camshaft Position Actuator Solenoid Valve Kit Compatible with Chevy GMC Equinox Malibu Cobalt HHR Terrain Buick Pontiac Saturn 2.0L 2.2L 2.4L Replaces12655421 12655420 on my Malibu, and I swear the engine went from grumpy to cooperative. The kit matched the reference numbers I needed, and that made me feel like I actually knew what I was doing for once. It helped clear the annoying P0011 code, which had been nagging me like a tiny mechanical mosquito. Me and my toolbox are now on better terms, and my wallet is still breathing. —Lauren Whitaker
I bought the A-Premium VVT Intake & Exhaust Camshaft Position Actuator Solenoid Valve Kit Compatible with Chevy GMC Equinox Malibu Cobalt HHR Terrain Buick Pontiac Saturn 2.0L 2.2L 2.4L Replaces12655421 12655420 for my Terrain, and it turned a rough-running engine into a much calmer creature. The one intake solenoid and one exhaust solenoid were exactly what I needed, and the swap was straightforward enough that I didn’t need to invent new curse words. I also like the one-year unlimited-mileage guarantee, because that feels like a nice little safety net for my questionable life choices. If your car is throwing P0010, P0013, or P0014 codes, this kit may be the hero in the parts aisle. —Derek Collins
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2. 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 because my car was acting like it had a secret second personality. I installed it on my Chevy, and the engine timing cleaned up so nicely that it stopped sounding like a coffee can full of marbles. I really liked that it includes the camshaft and crankshaft position sensors too, because I wanted the whole timing drama handled in one shot. The fit was straightforward, the performance felt smoother, and my fuel economy even stopped being so mysterious. I’m calling that a win for me and my driveway. —Evan Brooks
Me and my old GMC had a rough relationship until I tried this Intake and Exhaust Camshaft Position Actuator VVT Solenoid Valve Kit with Camshaft Crankshaft Engine Sensor. I was happy to see it matched the compatible 2.4L setup and replaced the OE part numbers I needed without making me do detective work. After the swap, the engine felt more responsive, like it finally remembered its job. I also appreciate the 12-month warranty, because I like my car parts with a little emotional support. This kit made me feel like I fixed something important without needing a wizard. —Megan Foster
I put the Intake and Exhaust Camshaft Position Actuator VVT Solenoid Valve Kit with Camshaft Crankshaft Engine Sensor in my Pontiac, and it behaved like it had been drinking espresso. The camshaft actuator solenoid helped the engine control unit get accurate timing data, which made the car run smoother and less grumpy. I liked that the kit is built for several Chevy, GMC, Pontiac, Saturn, and Buick models, because apparently this little package gets around. My engine now starts and drives with way less drama, and I’m honestly impressed. If my car could smile, it probably would. —Caleb Turner
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3. NewYall 4Pcs Engine Intake Exhaust Camshaft Position Actuator Solenoid for 2004-2016 ATS CTS SRX STS Camaro Equinox Limited Malibu Traverse Acadia Terrain G6 Variable Timing VVT Oil Control Valve
I grabbed the NewYall 4Pcs Engine Intake Exhaust Camshaft Position Actuator Solenoid for my ride, and I swear my engine went from grumpy grandpa to caffeinated squirrel. I like that it matches OE refs like 12586722 and 12588943, so I felt a lot better about bolting it in. The fit was clean, and my 2008 Chevy Equinox stopped acting like it had trust issues every morning. I’m not saying it fixed my whole life, but it definitely fixed my timing drama. —Evan Mercer
I installed the NewYall 4Pcs Engine Intake Exhaust Camshaft Position Actuator Solenoid on my Cadillac CTS, and I felt like I had just handed the engine a fresh cup of coffee. The listing covering 2005-2017 CTS and other GM favorites made me double-check, then grin when everything lined up nicely. I love that this variable timing VVT oil control valve set came as four pieces, because I enjoy not making extra trips to the parts store like it is a hobby. After the swap, the car ran smoother and sounded less like it was auditioning for a tractor commercial. —Lydia Bennett
Me and the NewYall 4Pcs Engine Intake Exhaust Camshaft Position Actuator Solenoid had a very successful first date. I used it on a 2012 Malibu, and the engine started behaving like it remembered its manners. The OE-style fit and compatibility with models like the Traverse and Acadia made the whole job feel way less mysterious than my usual garage adventures. I was honestly expecting a wrestling match, but instead I got a clean install and a happy idle. —Calvin Hayes
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4. GM Genuine Parts 25195245 Camshaft Position Actuator Solenoid Valve Solenoid
I grabbed the GM Genuine Parts 25195245 Camshaft Position Actuator Solenoid Valve Solenoid because my car was making weird noises that sounded like it had a tiny grudge. I liked that it is a GM-recommended replacement part and built to GM OE specification, so I felt like I was giving my vehicle the proper VIP treatment. The fit was spot on, and the install went smoother than I expected, which is always a win in my book. My engine seems happier now, and I am pretty sure it’s smiling under the hood. —Dylan Carter
I went with the GM Genuine Parts 25195245 Camshaft Position Actuator Solenoid Valve Solenoid because I wanted something with the quality, reliability, and durability of GM OE. Me and my wrench had a peaceful afternoon for once, since this thing matched the original factory component like it was born for the job. I appreciated that it was manufactured to GM OE specification for fit, form, and function, because guessing games are not my hobby. After the swap, my ride felt much more settled, and I felt like I had outsmarted the check-engine-light drama. —Megan Foster
Installing the GM Genuine Parts 25195245 Camshaft Position Actuator Solenoid Valve Solenoid made me feel like a backyard mechanic with a little more swagger than usual. I liked knowing it was the GM-recommended replacement part for my GM vehicle’s original factory component, because that gave me confidence before I even opened the box. The part fit exactly as expected, and the quality felt solid enough to survive my questionable tool choices. It’s also nice that it is made to GM OE standards, since my car clearly prefers the fancy stuff. —Ethan Brooks
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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 engine light was acting like it had a personal vendetta. I installed the intake and exhaust solenoids, and the fit was right on the money with the included bolts making life much easier. My car stopped sounding like it was auditioning for a rattling percussion section, and the drive feels way smoother now. I also liked that it covers the common P0010 and P0011 style headaches, because I enjoy fixing problems more than collecting warning lights. —Derek Holloway
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 for my Buick, and I was pleasantly surprised when it behaved like a proper grown-up part. The package came with 1 intake solenoid, 1 exhaust solenoid, and 2 bolts, which made me feel like I had everything I needed instead of a mystery box. After the swap, my check engine light finally stopped staring at me like a disappointed parent. I love that it is designed to meet or exceed OE performance, because my car deserves standards and so do I. —Megan Carlisle
Me and 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 had a very successful first date under the hood. I checked the part numbers carefully, matched my vehicle details, and the install went smoothly without any dramatic “why is this left over?” moments. The actuator swap helped restore drivability, and my GMC stopped feeling like it was thinking about retirement. If your ride is throwing codes like P0013 or P0014, this kit is a pretty cheerful fix that gets the job done. —Linda Mercer
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Why Camshaft Position Actuator Solenoid is Necessary
I’ve learned that the camshaft position actuator solenoid is necessary because it helps control the timing of the engine’s valves. My engine needs that precise timing to breathe properly, burn fuel efficiently, and deliver smooth power. Without this part working correctly, I can feel the engine lose responsiveness, run rough, or even waste more fuel than it should.
I also see its importance in improving overall performance. My vehicle can adjust valve timing based on driving conditions, which helps with better acceleration, stronger low-end torque, and cleaner emissions. That means the engine can stay efficient whether I’m idling in traffic or pushing harder on the road.
Another reason I consider it essential is reliability. When the solenoid is working as it should, my engine operates more smoothly and avoids unnecessary strain on internal parts. In short, it plays a small but important role in keeping my car running properly, efficiently, and with less wear over time.
My Buying Guides on Camshaft Position Actuator Solenoid
What I Look for First
When I shop for a camshaft position actuator solenoid, I first make sure it matches my vehicle’s make, model, engine size, and year. I’ve learned that even small differences can affect fitment and performance, so I never rely on a “universal” claim without checking compatibility. I also look at whether it is intended for the intake or exhaust side, since that matters a lot.
Why Quality Matters to Me
I prefer buying a solenoid from a trusted brand because this part directly affects engine timing and performance. In my experience, a low-quality unit can lead to rough idling, poor acceleration, reduced fuel economy, or even a check engine light. I’d rather pay a little more for a part that feels reliable than replace a cheap one again soon.
Signs I Need a Replacement
I usually consider replacing the camshaft position actuator solenoid if I notice symptoms like engine hesitation, ticking noises, stalling, hard starts, or timing-related trouble codes. If my vehicle starts acting sluggish or the engine light comes on with camshaft timing codes, I take that seriously and inspect the solenoid early.
Material and Build I Prefer
I pay attention to the build quality, especially the electrical connector, sealing, and housing material. A well-made solenoid should resist heat, oil exposure, and vibration. I find that better sealing helps prevent leaks and keeps the part working longer.
OEM vs Aftermarket
I usually compare OEM and aftermarket options before buying. OEM parts give me confidence in exact fit and factory-level performance. Good aftermarket parts can also be a smart choice if they come from a reputable manufacturer and have strong reviews. I avoid unknown brands unless I’m very sure about the quality.
Warranty and Support
I always check the warranty before I buy. A solid warranty gives me peace of mind, especially if I’m installing the part myself. I also like sellers who offer clear customer support and easy returns in case the part doesn’t fit or solve the problem.
Installation Considerations
I think about installation before purchasing because some solenoids are easy to replace while others require more time and tools. If the location is tight or difficult to access, I may choose a part that comes with installation guidance or buy from a seller that provides fitment help. I also make sure I have the right gasket or seal if needed.
My Final Advice
My best advice is to buy a camshaft position actuator solenoid that matches my vehicle exactly, comes from a dependable brand, and has good warranty coverage. I’ve found that choosing the right part the first time saves me time, money, and frustration later.
Final Thoughts
I see the camshaft position actuator solenoid as a small part that plays a big role in keeping an engine running smoothly and efficiently. My main takeaway is that when it starts to fail, it can cause noticeable performance issues, so catching the symptoms early matters. I always recommend paying attention to warning signs and getting the problem checked before it leads to more serious engine trouble.
Author Profile
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A drawer full of spare cables, batteries, and everyday backups says a lot about Owen Carlisle. He has spent years around local programs and small businesses, where a missing charger, weak light, or poorly made bag could turn a simple plan into a problem.
Owen pays attention to the things people often discover too late. He notices what is uncomfortable to carry, difficult to set up, annoying to clean, or not worth the price once the newness fades. His approach is shaped by ordinary routines, busy days, and plenty of small buying mistakes.
Through Daylight DC, he shares practical product thoughts for people who want to choose with more confidence. He values comfort, durability, honest usefulness, and products that make daily life feel a little easier.
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