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Do you check Subaru transmission fluid with the car running?


As a seasoned auto service provider, I often receive questions about the proper maintenance of vehicles, particularly regarding transmission fluid checks. One common query is whether you should check the transmission fluid in a Subaru while the engine is running. In this article, we will explore the correct procedure and the reasons behind it.


Understanding Transmission Fluid Checks


Checking the transmission fluid is a crucial part of vehicle maintenance. It ensures that your transmission operates smoothly and efficiently. For Subaru vehicles, the process can vary slightly depending on the model and year, but generally, it is recommended to check the fluid level with the engine running. Here’s why:



  • Fluid Circulation: When the engine is running, the transmission fluid circulates throughout the system. This circulation allows for a more accurate reading of the fluid level.

  • Temperature Consideration: Transmission fluid expands when heated. Checking the fluid while the engine is running ensures that you are measuring it at the correct operating temperature.

  • Fluid Condition: Running the engine allows you to assess the fluid's condition better. You can check for any discoloration or burnt smell, which indicates potential issues.


Steps to Check Subaru Transmission Fluid


Here’s a step-by-step guide on how to check the transmission fluid in your Subaru:



  1. Start the engine and let it warm up to the normal operating temperature.

  2. With the engine running, shift the transmission through all the gears, pausing for a few seconds in each gear.

  3. Return the gear selector to the 'Park' position.

  4. Locate the transmission dipstick, usually found near the back of the engine bay.

  5. Pull out the dipstick, wipe it clean with a lint-free cloth, and reinsert it fully.

  6. Remove the dipstick again to check the fluid level. The fluid should be within the marked range on the dipstick.

  7. If necessary, add the appropriate type of transmission fluid to reach the correct level.


Conclusion


In summary, checking the transmission fluid in a Subaru with the engine running is essential for accurate readings and proper maintenance. By following the outlined steps, you can ensure that your vehicle's transmission remains in optimal condition, preventing costly repairs down the line. If you have any doubts or need assistance, don't hesitate to consult a professional mechanic.


Frequently Asked Questions

How to check Subaru fluids?


Park your Subaru on a level surface and stop the engine. Pull out the dipstick, wipe it clean, and insert it again until it stops. Pull out the dipstick again and check the oil level on it. If it is below the lower level, add oil to bring it up to the upper level.



How do I know if my Subaru transmission is bad?


Identifying Subaru Transmission Failure
Delayed or rough gear shifting. Unusual noises, such as grinding, whining, or clunking.



Do you check transmission fluid while running or off?


To check the transmission fluid level, it is generally recommended to do so with the engine running and warmed up. Here's a step-by-step guide:



How long to let a car run before checking transmission fluid?


If the car is checked while the engine is cold, it might give an inaccurate reading when you use the dipstick. After driving for about 10 minutes, park on an even surface and leave it running. Shift through the gears and give the transmission the opportunity to spend a few seconds in each gear range.



Does my car need to be running when I put transmission fluid in?


Your car's engine should be running when you add fluid to the transmission, but you should have the transmission in park and the handbrake activated for safety. Check the owner's manual for instructions on selecting the correct transmission fluid for your vehicle.



What are the symptoms of low transmission fluid?


In the meantime, it's a good idea to familiarize yourself with the tell-tale signs that you may be low on transmission fluid.

  • Noises.
  • Burning Smell.
  • Transmission Leaks.
  • Slipping Gears.
  • Slow Gear Engagement.
  • Vehicle Accelerates Poorly.
  • Check Engine or Transmission Warning Light Is On.



Do you check CVT fluid with engine running?


Let engine warm up and continue to run throughout operation unless vehicle's owner's manual says otherwise.



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.



Do I check the oil with my car on or off?


Answer. We recommend checking the oil level either before turning on the engine or 5 to 10 minutes after shutting down so you can have all the oil in the oil pan to get an accurate measurement.



Do you check Subaru transmission fluid while running?


ATF must always be checked with engine running. When engine is off all the fluid ``drains'' back into pan and shows high on dipstick. With engine running the fluid is flowing thru all the parts of trans. and will show the actual operating level.


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.