How to Replace a Variable Valve Timing (VVT) Switch

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With engines getting smaller but demand for power along with efficiency increasing, variable valve timing (VVT) gives you the best of both worlds. At low speeds, you have a small efficient engine. At higher engine speeds, the VVT solenoid supplies oil pressure to the camshaft lobes to alter their profile. The valve will open farther and longer to give you the power of a larger engine. When the VVT switch is not functioning properly, you can have loss of power and/or an illuminated check engine light.

  • Note: There is typically a VVT switch/solenoid on both the intake cam and the exhaust cam. Make sure you are replacing the correct one.

Part 1 of 1: Replacing the VVT solenoid

Materials Needed

  • Engine oil (any grade)
  • Multi-bit driver set
  • Ratchet/sockets
  • Wrenches - box/open-end

  • Tip: It’s a good idea to have one of these multi-bit driver sets in your tool collection. In today’s vehicles, you can have a number of different types of fasteners - phillips, flat-head, torx-head - so having interchangeable bits makes life easier than having complete sets of different screwdrivers.

typical vvt switch

Step 1: Locate the VVT switch. If so equipped, remove any intake covers for ease of access.

Once removed, locate the correct VVT switch you are replacing - intake or exhaust side.

Once located, remove the electrical connector, being careful how much force you use. Plastic components underhood become brittle due to the engine’s heating and cooling cycles.

Step 2: Remove the VVT switch. The VVT switch is typically held in place with one mounting bolt.

Remove it and set it aside. Carefully pull the switch out of its mounting, making sure the o-ring or seal is removed along with it.

Step 2: Clean the VVT switch mounting area with a rag. Wipe the mounting area as to keep any dirt or debris from getting into the mounting surface/bore.

Making sure the new o-ring/seal is in place on the new VVT switch, dab a bit of engine oil on the o-ring so it slides into place without damage. Secure it in place with the mounting bolt and reattach the electrical connector.

engine cover being installed

Step 4: Check for leaks. Before replacing any engine covers removed to access the VVT switch, start the vehicle and check for leaks.

Also, check that the Check Engine Light is not on. Once verified, turn the engine off and reattach any covers.

Step 5: Clear the codes. If you do not have a code reader available, most vehicles typically self-clear fault codes after 5-10 ignition cycles - starting the vehicle, driving it, then turning it off.

If this does not happen, get a fault code reader to clear the code or visit a local auto part store that may be able to do it for you.

If you do not feel confident performing this repair on your own and your vehicle is showing signs of reduced power or has a fault code set, have one of YourMechanic’s certified technicians come to your home or business and perform a replacement.


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Recent Variable Valve Timing (VVT) Solenoid Replacement reviews

Excellent Rating


YourMechanic Variable Valve Timing (VVT) Solenoid Replacement Service

Average Rating

4.9/5

Number of Reviews

159

Rating Summary
150
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150
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Joseph

31 years of experience
540 reviews
Joseph
31 years of experience
Buick LaCrosse - Variable Valve Timing (VVT) Solenoid - Mesquite, Texas
He was awesome! He fixed my car and took the time to really talk to me and explain what was going on with my car. He's very personable, really cool guy. I would definitely recommend him.
Hyundai Tucson - Variable Valve Timing (VVT) Solenoid - McKinney, Texas
Jospeh was awesome! He diagnosed the check engine light issue to be a different part than what it read as on the 1st trip. Then he replaced it today! I would definitely book him again & would recommend him highly. Great guy!

MICHAEL

31 years of experience
114 reviews
MICHAEL
31 years of experience
Acura RDX - Variable Valve Timing (VVT) Solenoid - Morrisville, Pennsylvania
Very knowledgeable and fixed my car quickly. Very friendly and an all around good guy who knows what he's doing!

Nicholas

9 years of experience
244 reviews
Nicholas
9 years of experience
Chevrolet Malibu - Variable Valve Timing (VVT) Solenoid - Raleigh, North Carolina
Nicholas was great. Had a bad experience With a local mechanic, and Nicholas saved the day. I will be recommending him to all of my friends and will continue to use him in the future!

Jeffrey

25 years of experience
839 reviews
Jeffrey
25 years of experience
Chevrolet Traverse - Variable Valve Timing (VVT) Solenoid - Clover, South Carolina
Jeff' was very professional and knowledgeable. Unfortunately, the parts department did not prepare him for all tasks requested, because the NOTES TO THE MECHANIC was ignored. Incredible job Jeff.

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