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What are symptoms of CVT transmission problems?


Continuously Variable Transmissions (CVTs) are becoming increasingly popular in modern vehicles due to their smooth operation and fuel efficiency. However, like any other component in your car, CVTs can develop issues over time. Recognizing the symptoms of CVT transmission problems early can save you from costly repairs and ensure your vehicle remains safe to drive. Below, we’ll explore the most common signs that your CVT might need attention.


1. Unusual Noises


One of the first signs of CVT trouble is hearing unusual noises while driving. These noises can include:



  • Whining: A high-pitched whining sound, especially during acceleration, may indicate a problem with the CVT belt or pulleys.

  • Grinding: Grinding noises could signal internal damage or wear within the transmission.

  • Clunking: If you hear clunking sounds when shifting gears, it might be a sign of a failing CVT system.


2. Slipping or Hesitation


If your vehicle hesitates or struggles to accelerate, it could be due to a slipping CVT. This happens when the transmission fails to maintain a consistent connection between the engine and the wheels, leading to a loss of power or delayed response.


3. Poor Fuel Efficiency


CVTs are designed to optimize fuel efficiency, but if you notice a sudden drop in your gas mileage, it could indicate that the transmission is not functioning as it should. This inefficiency might stem from internal wear or improper calibration.


4. Dashboard Warning Lights


Modern vehicles are equipped with sensors that monitor the health of various systems, including the transmission. If your CVT is experiencing issues, you may see a warning light on your dashboard, such as the "Check Engine" or "Transmission" light. Always have these warnings checked by a professional mechanic as soon as possible.


5. Overheating


CVTs can overheat if they are under excessive strain or if the transmission fluid is low or degraded. Symptoms of overheating include a burning smell, reduced performance, or the vehicle entering "limp mode" to protect the transmission from further damage.


6. Shuddering or Jerking


While CVTs are known for their smooth operation, a failing CVT may cause the vehicle to shudder or jerk during acceleration. This can be a sign of internal wear or a problem with the transmission fluid.


7. Fluid Leaks


Transmission fluid is essential for the proper functioning of a CVT. If you notice red or brown fluid pooling under your car, it could indicate a leak in the transmission system. Low fluid levels can lead to overheating and severe damage if not addressed promptly.


What to Do If You Notice These Symptoms


If you experience any of the symptoms listed above, it’s crucial to have your vehicle inspected by a qualified mechanic as soon as possible. At Kevin’s Autos, we specialize in diagnosing and repairing CVT transmission issues. Our experienced team can help you get back on the road safely and efficiently.


Don’t ignore the warning signs—schedule an appointment with us today to ensure your vehicle stays in top condition!


Frequently Asked Questions

How do I tell if my CVT transmission is bad?


Some common problems to look out for with your CVT include:

  1. Transmission 'jerking', slipping, grinding or jumping during acceleration when the car is shifting gears.
  2. Noisy while driving – some customers have issues with a 'whining', 'clanging' or 'rattling' sound while driving especially with Nissan CVT's.



What does a failing CVT sound like?


In a CVT transmission, whining is one of the most common signs that the transmission is beginning to have internal issues. Rather than using a traditional gear system, a CVT transmission will often use pulleys and a belt to allow constant ratio changes.



What happens when a CVT transmission goes out?


When this happens the car loses power and seems to rev higher like it can't into lower gears. It feels like it is slipping or not fully engaging. You would notice that you can't get past a certain speed below the highway speed limit. After the transmission cools in a few hours it's back to normal.



What year CVT transmission is bad?


Nissan CVT Problems Overview
Owners of Nissan vehicles, model years between 2013 and 2020, have filed complaints with the National Highway Traffic Safety Administration (NHTSA) claiming that their vehicles have been affected by CVT transmission defects.



What happens when a CVT transmission is low on fluid?


When your transmission fluid is running low, you can experience a delay or hesitation when shifting to drive or reverse. It's because the fluid pressure simply isn't strong enough, and the gears will eventually change. It may just take more time than it typically does.



Can I drive with a bad CVT transmission?


Continuous driving with a bad transmission causes excessive wear and tear on the engine and drivetrain, potentially leading to failure and expensive repairs. Transmission issues can also cause vehicle computer system malfunctions, affecting overall performance and reliability.



How do I know if my CVT transmission needs fluid?


Not being able to shift is a direct result of having low transmission fluid. Slipping Gears - On the flipside, slipping out of gear is another side effect of having low transmission fluid. For example, you may be maintaining your current speed, then suddenly feel your vehicle downshift or shift to a higher gear.



What are the most common problems with CVT transmissions?


CVT Problems

  • Transmission overheating.
  • Loud whining and other transmission noises.
  • Delayed acceleration/engine revving/transmission slipping.
  • Vehicle jerking, shuddering, or shaking.
  • Burning smell.
  • Transmission leaks.
  • Premature failure.



Can you fix a CVT transmission without replacing it?


Yes, CVT Transmissions can be repaired, but the most effective way to avoid having to repair them is to make sure that you replace the fluid at Nissan's (or your own manufacturers) recommended Intervals and avoid putting unapproved load or stress on your CVT vehicle (towing or trailering).



How much does it cost to replace a CVT transmission?


$3,000 to $8,000
On average, the cost of a new CVT transmission can range from $3,000 to $8,000, including parts and labor. If your vehicle experiences transmission issues while under warranty, the cost of a new transmission should be included.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.