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

What's the Difference Between a Code Reader and a Code Scanner?
In In order to determine why your Check Engine Light is on, a mechanic will connect a handheld device to the OBD II connector under your dash (in a vehicle made in 1996 and onward). This lets the mechanic access...
How Long Does an AC Condenser Fan Last?
The The AC condenser fan in your car works to convert refrigerant into a liquid form. Essentially, it takes heat away from your air conditioning system by delivering air to the condenser. In removing heat from the AC system, it...
How to Properly Use a Floor Jack and Jack Stands
Jack Jack stands ( are important tools that keep a vehicle propped up after having used a floor jack (, like a scissor jack or a hydraulic jack, to lift a vehicle. Once the vehicle is lifted enough to fit...

Car turns over but doesn't start.

There could be several reasons behind why your Honda Prelude will not start. A simple test you can try first yourself is to turn the key to the ON position (do not start the car) and see if the check...

My car is bucking at low speeds and while in drive at stop signs and red lights no codes it's an '06 expedition.

It sounds like you may have a crankshaft position sensor that may be on the verge of failing. A crankshaft position sensor ( is an electronic device used to monitor the position or rotational speed of the crankshaft. This information...

Have a 2001 Ford Explorer I replaced the battery 3x 2 used & 1 brand new they all went out within a week. We did an alternater test with both it’s not the [alternator](/topics-alternator-ford/) trying to see what’s next to do

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 ·