If the VVT solenoid fails or is blocked, the lack of proper lubrication can cause the timing chain and gear to prematurely wear or break entirely. When the VVT solenoid activates, oil is sent to lubricate the variable valve timing chain and gear assembly. Some examples of this include while a vehicle is carrying additional weight, traveling up hills, or when acceleration is expedited through throttle control.
This system typically activates when there is a significant load against the engine. Today, a VVT system can be found in virtually all production vehicles sold throughout the United States.Įach automotive manufacturer has their own unique VVT system, but most of them rely on a fully functional variable valve timing solenoid to control the flow of oil to the VVT system as it is engaged.
One of the biggest breakthroughs was the development of variable valve timing (VVT), a new system that utilized advanced (for the time) electronic technology to apply variable electronic signals from the ignition system by way of a variable valve timing solenoid.
#2010 chevy equinox 2.4 bad timing chain symptoms how to
With every new car produced, the "Big Three" learned more about engine performance and how to squeeze every ounce of horsepower out of their engines by manually adjusting valve lash and ignition timing. In the early to mid-1960's, American automotive giants Chrysler, Ford, and General Motors ruled the streets and drag strips across the land.
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