Variable Valve Timing Actuator Replacement at your home or office.

Our certified mechanics come to you · Backed by our 12-month, 12,000-mile warranty · Get a fair and transparent estimate upfront


Variable Valve Timing Actuator (VVT) Replacement Service

What is the Variable Valve Timing Actuator (VVT) all about?

Timing determines almost everything about how an engine performs, from when the exhaust valves open to the amount of power available during low, mid and top-range performance. Variable valve timing is a solution to the problems presented with traditional fixed engine timing where the timing stayed the same throughout engine operation. With VVT, the engine’s timing adjusts minutely during operation to meet the needs at the time, predominantly during mid and peak performance situations. It also helps to provide the smoothest idling, and ensures good “all around” performance. The variable valve timing actuator is one of several critical components, and is located on the camshaft. It receives a signal from the engine control module to advance or retard the timing in small increments. If the variable valve timing actuator is faulty, the timing will not adjust as it should, and you will experience poor engine performance and decreased fuel economy.

Keep in mind:

  • The variable valve timing actuator does not require maintenance but should be inspected during a timing belt or chain replacement.
  • The VVT actuator is located on the camshaft, and is not visible without significant engine teardown.

Our recommendation:

The variable valve timing actuator is designed to last the life of the car. Failures are rare, but not unheard of. The prime opportunity for VVT actuator inspection is during timing belt replacement, so make sure to follow your automaker’s scheduled service recommendations. It’s important that you maintain your engine properly with basic maintenance like oil changes, as oil quality, cleanliness and viscosity can affect the VVT actuator. If you suspect a problem with your variable valve timing actuator, have one of our expert mechanics diagnose it and replace it as necessary.

What common symptoms indicate you may need to replace the Variable Valve Timing Actuator (VVT)?

  • Check Engine light is on
  • Fuel economy declines significantly
  • Engine runs rough or rattles while idle

How important is this service?

If the engine’s timing is off, operating it can cause catastrophic damage to your car. If your variable valve timing actuator needs to be replaced, do so quickly to prevent further damage.

Fast and easy Variable Valve Timing Actuator (VVT) Replacement service at your home or office.


Recent articles & questions

How to Replace Timing Gears
Timing gears control are connected to the crankshaft and the camshaft and how much fuel and air enter the cylinder to ensure your car runs smoothly.
How to Install Mud Flaps
Mud flaps provide a splash guard for the water that sprays against car tires. Mud guards can be drilled into the car or installed with screws.
How to Replace a Rear Window Defogger Switch
The rear window has a defogger switch that fails if the button does not light up, the rear window does not defog, or the switch does not always work.

My 2004 Buick Rendezvous Service Engine Soon light is on. What does this mean

the check engine light comes on for the computer sensed a problem in the systems that it monitored. There can be many different reasons for it to come on from a loose gas cap to sensor failures. You will need...

Car doesn't turn over and the engine doesn't start.

Hi there. When changing out the body control module the Immobilizer system was tripped. Either the system will have to be reset or the Immobilizer system control has to be replaced. If you need further assistance with your engine not...

Rod Knock, Timing belt or What? 2013 Subaru WRX

Hello - engine noises can sometimes be difficult to diagnose, especially without actually hearing it. Rod bearing noise can sometimes best be confirmed by snapping the throttle open ( aka "blip" the engine), if you get the rapping noise then,...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com