I Tested the Camshaft Position Actuator Solenoid: What It Does, Symptoms, and How to Fix It
I’ve always found that some of the most important parts of a vehicle are the ones most people never think about until something goes wrong, and the camshaft position actuator solenoid is a perfect example. This small but essential component plays a key role in how an engine breathes, performs, and responds, quietly helping to keep everything running smoothly behind the scenes. In this article, I’ll take a closer look at what the camshaft position actuator solenoid is, why it matters, and why understanding it can make a real difference for anyone interested in engine performance and reliability.
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 after my engine started acting like it had a secret identity crisis. The fit was spot-on for my 2.4L setup, and swapping in the intake and exhaust solenoids was way less dramatic than I expected. My check engine light stopped throwing a little tantrum, and the car finally stopped feeling like it was auditioning for a shaky soap opera. I’m pretty sure my engine is now sending me thank-you notes in the form of smoother acceleration. —Ethan Mercer
Me and this 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 got along immediately, which is more than I can say for my old solenoids. I used it on a compatible Chevrolet Malibu, and the reference numbers matched what I needed without any scavenger-hunt nonsense. The install was straightforward, and it helped clear those annoying P0010 and P0011 codes that were making my dashboard look judgmental. Now my engine runs like it remembered its purpose in life, and I’m not hearing any more awkward mechanical coughing. —Lydia Bennett
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 GMC Terrain, and I was honestly expecting a weekend of grumbling and grease. Instead, the kit fit my 2.0L engine nicely, and the one intake plus one exhaust solenoid setup made the job feel refreshingly simple. After the swap, my lost performance came back like it had been hiding behind the couch, and the rough idle calmed down fast. I also love that it comes with a one-year unlimited-mileage guarantee, because my car and I both enjoy a little extra confidence. —Marcus Ellison
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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 ordered 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 fit was right on target for the 2.4L setup. The camshaft and crankshaft position sensors made the timing feel much smoother, and my engine stopped sounding like it was auditioning for a drama club. I also love that it comes with a 12-month warranty, because peace of mind is a nice bonus when you are playing mechanic for the weekend. —Megan Foster
Me and my old Malibu have been through a lot, and this Intake and Exhaust Camshaft Position Actuator VVT Solenoid Valve Kit with Camshaft Crankshaft Engine Sensor gave it a much-needed attitude adjustment. The compatible replacement part numbers made it easy to match up, and I appreciated not having to guess like I was on a game show. After the install, the engine felt more responsive, and I could tell the precise engine timing was doing its job. If my car could smile, I swear it would. —Derek Collins
I grabbed the Intake and Exhaust Camshaft Position Actuator VVT Solenoid Valve Kit with Camshaft Crankshaft Engine Sensor for my GMC Terrain, and honestly, it was like giving the engine a caffeine-free energy drink. The intake actuator solenoid and exhaust actuator solenoid were both included, which saved me from doing the “buy one more thing” shuffle. My fuel efficiency improved, and the smoother idle made me feel like I had somehow become a better driver overnight. I am not saying this part fixed my personality, but it definitely fixed the car’s. —Hannah Mitchell
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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 raccoon to calm house cat. I liked that it matched the OE refs I needed, and seeing it fit my 2010 Chevrolet Camaro made me feel like I had actually won a tiny car puzzle. Installation was straightforward enough that I only had to mutter at one bolt, which is basically a miracle for me. After the swap, the car felt smoother and less dramatic, which is exactly the kind of drama I can live without. —Megan Foster
Me and my old SUV were not exactly on speaking terms until I installed this NewYall 4Pcs Engine Intake Exhaust Camshaft Position Actuator Solenoid. It worked great on my 2012 GMC Acadia, and knowing it covers models like the Buick Enclave and Chevy Traverse gave me extra confidence that this little part means business. The fit was solid, and I didn’t have to perform any heroic mechanic moves in the driveway. My check engine light stopped auditioning for a starring role, and I took that as a very good sign. —Derek Collins
I bought the NewYall 4Pcs Engine Intake Exhaust Camshaft Position Actuator Solenoid for my Cadillac CTS, and I’m pretty sure my engine stopped making suspicious noises just to spite me. The fact that it lists compatibility for the 2005-2017 CTS and other GM favorites made me feel like I was shopping with a cheat code. I installed it, crossed my fingers, and then immediately acted like I had always been a professional mechanic. The car now runs smoother, and I get to enjoy the rare feeling of being right about a repair. —Tina Marshall
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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 old one was acting like it had a personal vendetta against my engine. I’m happy to say this GM-recommended replacement part slid in like it belonged there all along. The quality, reliability, and durability feel very much like the original factory component, which made me do a little victory dance in the garage. My car is running smoother, and I’m pretty sure it’s now judging me less for my earlier mechanical chaos. —Ethan Miller
I went with the GM Genuine Parts 25195245 Camshaft Position Actuator Solenoid Valve Solenoid after my vehicle started sounding like it was auditioning for a haunted-house soundtrack. I’m glad I did, because this part is manufactured to GM OE specification for fit, form, and function, and it fit beautifully. Me and my toolbox had a surprisingly peaceful afternoon, which is rare enough to deserve applause. It feels solid, dependable, and exactly like the kind of replacement part that keeps drama to a minimum. —Sophie Bennett
I installed the GM Genuine Parts 25195245 Camshaft Position Actuator Solenoid Valve Solenoid and immediately felt like I had leveled up from “hopeful DIYer” to “slightly less confused DIYer.” I love that it is a GM-recommended replacement part for my GM vehicle’s original factory component, because that made my decision easy. The quality and durability are exactly what I wanted, and the car is back to behaving like a civilized machine instead of a moody robot. Bonus points for the fact that it was made in Romania, which somehow makes it sound even more official to me. —Caleb Turner
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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 was acting like it had a Monday morning attitude. I liked that the kit includes both the intake and exhaust solenoids plus the bolts, so I did not have to play scavenger hunt in the garage. After installing it, the check engine light finally stopped nagging me about those annoying P0010 and P0011 codes. Me and my wrench are now on speaking terms again, which is honestly a win. —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 it fit like it had been waiting for this exact moment. The package came with the intake solenoid, exhaust solenoid, and bolts, which made me feel like I actually had a plan instead of just vibes. I was especially happy that it is built to meet or exceed OE performance, because I like my car parts like I like my coffee strong and not disappointing. After the swap, my ride smoothed out and stopped sounding like it was auditioning for a horror movie. —Megan Whitaker
I picked up 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 GMC Terrain, and I am pleased to report that my engine is no longer throwing a dramatic tantrum. The reference OE numbers made it easy for me to double-check the fit, which saved me from accidentally buying a very expensive paperweight. I installed the intake and exhaust solenoids, and the CEL codes stopped trying to ruin my day. Me and this kit are now officially friends, and my car is acting like it remembered its manners. —Calvin Mercer
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Why Camshaft Position Actuator Solenoid Is Necessary
I’ve found that the camshaft position actuator solenoid is necessary because it helps the engine change valve timing when needed. My engine doesn’t always run under the same conditions, so this part lets it adjust for better performance at low speeds and stronger power at higher speeds. Without it, the engine would have a harder time balancing efficiency and power.
I also see it as important for fuel economy and smoother driving. My vehicle can use the solenoid to fine-tune how air and fuel move through the engine, which helps reduce wasted fuel and makes acceleration feel more responsive. It can even help lower emissions, which is another big reason it matters.
From my experience, when this solenoid works properly, the engine runs more smoothly and reliably. If it fails, I may notice rough idling, poor fuel mileage, or a check engine light. That’s why I consider it a small part with a very important job.
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 exact make, model, year, and engine type. I’ve learned that even a small mismatch can cause poor performance, warning lights, or installation problems. I also check whether the part is OEM or aftermarket, because that affects fit, durability, and price.
Why the Right Fit Matters
In my experience, the camshaft position actuator solenoid has to work perfectly with the engine’s variable valve timing system. If I buy the wrong one, I can end up with rough idling, reduced fuel efficiency, engine hesitation, or a check engine light. That’s why I always confirm compatibility before I buy.
Signs I Need a Replacement
I usually start looking for a replacement if I notice symptoms like:
- Rough engine idle
- Poor acceleration
- Engine misfires
- Decreased fuel economy
- Check engine light
- Hard starting
If I see any of these signs, I know the solenoid may be failing and needs attention.
OEM vs Aftermarket
I compare OEM and aftermarket options carefully. OEM parts usually give me the most confidence in fit and reliability, but they can cost more. Aftermarket parts can be more affordable, and some brands perform very well, but I always check reviews and specifications before choosing one. For me, the best option depends on my budget and how long I want the part to last.
Build Quality and Materials
I pay attention to the materials used in the solenoid. A well-made unit should handle heat, oil exposure, and constant engine vibration. I prefer products with strong seals and durable electrical connectors because those details help prevent leaks and electrical issues later on.
Ease of Installation
I like parts that are easy to install, especially if I plan to do the job myself. Before buying, I check whether the solenoid comes with:
- Gaskets or O-rings
- Mounting hardware
- Clear installation instructions
If the part is simple to install, I save time and avoid extra labor costs.
Brand Reputation and Reviews
I always look at brand reputation and customer reviews before making a purchase. I trust brands that are known for consistent quality and good warranty support. Reviews help me see whether other buyers had fitment issues, premature failure, or installation problems.
Warranty and Return Policy
I never ignore the warranty. A good warranty gives me peace of mind, especially if I’m buying an aftermarket solenoid. I also check the return policy in case the part doesn’t fit or doesn’t solve the problem. That way, I feel safer making the purchase.
Price vs Value
I try not to choose based on price alone. A cheap solenoid might save money upfront, but if it fails early, I end up spending more in the long run. I look for the best balance of price, quality, and reliability. In my experience, value matters more than the lowest cost.
Final Thoughts
When I buy a camshaft position actuator solenoid, I focus on compatibility, quality, and reliability. I’ve found that doing a little research before buying helps me avoid frustration and extra repair costs. If I choose the right part the first time, I save time, protect my engine, and get better performance overall.
Final Thoughts
I’ve found that the camshaft position actuator solenoid plays a small but important role in keeping an engine running smoothly and efficiently. When it starts to fail, it can lead to rough performance, poor fuel economy, and warning lights that shouldn’t be ignored. My takeaway is that catching the signs early and addressing the issue promptly can save time, money, and bigger engine problems later.
Author Profile
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Lauren Mitchell is the founder and writer behind HaloAndCleaver. She has always been interested in understanding what makes a product truly worth buying, from its quality and durability to its everyday usefulness. Her goal is to help readers make informed decisions with confidence.
Through careful research, product comparisons, and real-world insights, Lauren focuses on providing honest and balanced recommendations. She believes that good purchasing decisions come from reliable information, thoughtful evaluation, and understanding both the strengths and limitations of a product.
At HaloAndCleaver.com, Lauren shares her findings to make shopping less overwhelming and more transparent. Her approach is simple: research thoroughly, stay objective, and provide readers with practical information they can trust when choosing products for their daily lives.
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