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How do I know if my transmission filter needs to be changed?

The transmission filter in your vehicle plays a crucial role in maintaining the health and performance of your car's transmission. Knowing when to change this filter can help prevent costly repairs and ensure your vehicle runs smoothly. In this article, we'll explore the signs that indicate it's time to replace your transmission filter.


What is a Transmission Filter?


The transmission filter is responsible for trapping debris and contaminants that can accumulate in the transmission fluid. Over time, the filter can become clogged, reducing the flow of fluid and causing various issues with your vehicle's transmission. Replacing the transmission filter is an essential part of routine maintenance to keep your car running at its best.


Signs Your Transmission Filter Needs Changing



  • Transmission Fluid Discoloration: If the transmission fluid appears dark, murky, or has a burnt smell, it's a sign that the filter is clogged and needs to be replaced.

  • Delayed Gear Engagement: When you shift gears, there should be a smooth, immediate response. If you notice a delay or hesitation in gear changes, it could indicate a problem with the transmission filter.

  • Transmission Slipping: If your vehicle's transmission is slipping or not engaging properly, it may be due to a clogged filter restricting fluid flow.li>
  • Increased Transmission Noise: A noisy transmission can be a sign of a problem, and a clogged filter may be the culprit.


If you notice any of these symptoms, it's essential to have your transmission filter inspected and replaced if necessary. Ignoring these warning signs can lead to more severe transmission issues and costly repairs down the line.


How Often Should You Change the Transmission Filter?


The recommended interval for changing your transmission filter varies depending on your vehicle's make, model, and driving conditions. Generally, it's a good idea to replace the filter every 30,000 to 60,000 miles or as specified in your owner's manual. Regular maintenance and filter changes can help extend the life of your vehicle's transmission and prevent unexpected breakdowns.


By being aware of the signs that indicate a need for a transmission filter change, you can proactively maintain your vehicle and avoid more significant problems. Remember to consult your owner's manual or a trusted mechanic for specific recommendations on your car's transmission maintenance schedule.

How do I know if I need a new transmission filter?


Signs Your Transmission Fluid Filter is Clogged (And What To Do About It)

  • An Unexplained Rattle. Sometimes, you know exactly what's making your vehicle rattle.
  • Whirs or Whines.
  • Leaking.
  • Burning Smell.
  • Problems Changing Gears.
  • A Noisy Neutral.
  • Take Care of Your Transmission Fluid Filters.



How often should a transmission filter be changed?


In automatic transmissions/transaxles, the recommended service interval is about every 30,000 miles or 30 months. (Check your owner's manual or service manual for your car's specifics.)



How does a car act when the transmission is going out?


Vibrating or Shaking. If your vehicle's transmission is acting up, your car may begin to shake or vibrate when you change gears. Any feeling of unsteadiness or vibration should warrant an immediate trip to the shop, as these signs could indicate a serious problem with your transmission or engine.



What are symptoms of low transmission fluid?


If your gears are slipping, it's a clear sign your car's running low on transmission fluid. When experiencing sudden up and down shifts, high RPMs right before shifting, or erratic shifting, seek assistance from your local service center to prevent your transmission from overheating or becoming damaged.



Can a bad transmission filter cause shifting problems?


One of the most common signs of a clogged transmission filter is abnormal shifting. Automatic transmissions often begin to “slip” when one or more of the control devices fail to hold due to low fluid pressure. This slippage results in an increase in engine RPMs without an increase in vehicle speed.



Will a transmission filter throw a code?


The common symptoms of an obstructed transmission filter include abnormal shifting, noises from the transmission pump, and contaminated transmission fluid. The PCM will also illuminate the check engine light and record a diagnostic trouble code (DTC) if it detects a transmission issue caused by low fluid pressure.



How much does a transmission filter change cost?


However, for automatic transmissions, the average cost can range from $80 to $250, and the average cost is around $100. If you have the fluid flushed and the filter replaced, the cost can increase to between $230 and $475.



What are the symptoms of a bad transmission filter?


Overheating Transmission: A clogged filter can restrict fluid flow, leading to overheating, which may trigger warning lights on the dashboard. Unusual Noises: Grinding, whining, or clunking noises can occur if the transmission is not receiving adequate lubrication.



What happens if you don't change transmission filter?


Your transmission will wear out sooner, and potentially stop functioning properly. You can't go any length of time without wear occurring, the transmission is constantly wearing. The wear becomes much more severe with poor fluid condition.



Is it better to flush a transmission or change filter?


It's been said that a transmission flush is more effective than a change because: With a flush, all the old fluid is removed by a flush machine and replaced with new fluid, allowing for optimal transmission performance.


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.