In order to know what you might have to look out for in your car or keep it long lasting and working properly, you need to keep an eye and ear out for potential CVT transmission problems and the symptoms of a bad CVT transmission.ġ. Unusual Noises - There may be noise coming from the CVT transmission. Since neither the pulleys nor the belt is fixed, they can provide an infinite number of gear ratios, unlike the automatic, which has a set number of gears. When one pulley gets larger, the other one gets smaller. The diameter of the pulley’s changes depending on how much power the vehicle needs. One pulley connects to the engine, and the other connects to the wheels. The most common CVT architecture has two pulleys. An automatic also has a set number of gears, but it utilises a hydraulic system that responds to pressure created by the conditions to determine the gear needed without any input from the driver.Ī CVT is like an automatic in that it does not use any input from the driver, but that is where the similarities end. A manual has a set number of gears, and the driver determines which gear ratio they need. Most of us understand how traditional manual and automatic gearboxes work. A CVT transmission uses a pair of variable-diameter pulleys and a belt or chain to provide unlimited gear ratios. He asked if this is “normal” for a CVT, or perhaps this CVT was damaged? How would he know?įor those unfamiliar with the acronym “CVT”, it stands for continuously variable transmission. Also, he could not tell the speed of the car by the ‘feel’ of the engine. There was a slight delay when he stepped on the accelerator before the car accelerated. Having always driven manual vehicles, he found the drive somewhat disconcerting. He was looking to buy a “new” a car, so he went to We Sell Cars and found a good condition vehicle with a CVT gearbox. A reader had an interesting question this week.
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