CVT Transmission Maintenance Guide

Unlike conventional automatic transmissions that shift between fixed gear ratios, a continuously variable transmission (CVT) uses a system of belts or chains and pulleys that can adjust to an infinite number of effective gear ratios. Think of it as having one smooth, continuous gear rather than 5, 6, or even 10 distinct gears.

Traditional automatics shift from first gear to second, second to third, and so on. Each time, this causes a momentary interruption in power delivery. A CVT, however, can instantly find the optimal ratio for any driving situation without these noticeable shifts.

How Does a CVT Transmission Work?

At the heart of a CVT are two pulleys connected by a specially designed belt or chain, also known as the V-belt. One pulley connects to the engine, the drive pulley, while the other transfers power to the wheels through the driveshaft.  This second pulley is the driven pulley.  These pulleys can change the diameter by moving their conical halves closer together or further apart.  

When you’re accelerating from a stop, the engine side pulley becomes smaller while the driveshaft side pulley becomes larger, creating the equivalent of a low gear ratio for more torque. As you reach cruising speed, the pulleys adjust to create the equivalent of a higher gear ratio for better efficiency.

Benefits of a CVT Transmission

Increased Fuel Efficiency

A primary reason vehicle manufacturers moved to CVT transmissions is the improved fuel economy they provide.  The CVT transmission has the ability to maintain the engine at an optimal RPM, regardless of vehicle speed, which provides improved fuel economy over a traditional automatic transmission.

Reduced Emissions

The same benefits that we see from improved fuel efficiency also translate to reduced vehicle emissions.  The ability to keep an engine running at its ideal operating RPM range allows for fewer emissions from the exhaust.

Reduced Manufacturing Cost

Due to the fewer parts and smaller size, CVTs are less expensive to manufacture.  This lower cost reduces the overall cost of a new vehicle.

Driving Comfort

Another noticeable benefit while driving a CVT-equipped vehicle is the smooth driving experience. Without traditional gear shifts, the acceleration feels smooth and free from any jolting shifts.  

How do you take care of a CVT Car?

Just like a traditional gearbox, the CVT gearbox will occasionally require a transmission flush. If the fluid isn’t changed inside the transmission eventually, it can break down to the point where it can no longer lubricate the metal gears as they mesh together, allowing the transmission to sustain serious damage. Beyond that, the CVT belt might need to be replaced if it becomes stretched over time. The best way to maintain your CVT is to have it inspected periodically by a trusted professional.

Transmission Service & Repair in

Your transmission is crucial for preventing unstable driving conditions. When one part fails, it can potentially lead to damage to your transmission and vehicle. Luckily, the ASE-Certified technicians at Becker Service Center in Naperville have the equipment and experience to get your transmission running at its best. Call or schedule an appointment online today!