How To Bleed Transmission Fluid for Vehicle Maintenance: A Step-by-Step Guide

To bleed transmission fluid, use a turkey baster or a funnel to suck out old fluid from the transmission dipstick tube and refill it with new fluid.

How To Bleed Transmission Fluid

Bleeding your transmission fluid is an important part of any maintenance routine for your car. If done properly, it can help ensure that your car runs as efficiently and smoothly as possible. Knowing how to properly bleed transmission fluid is essential for getting the most out of your vehicle. This overview will provide a step-by-step guide on how to effectively bleed transmission fluid from your car.

Finding the correct hose that goes from the mechanical side to the external port is essential for any transmission fluid bleeding process. Once thats identified, make sure to secure a clear tube onto the port, clearing it of any air bubbles or particles. Then, using a 16mm spanner attached to the hose bridge on top of the ground plate, remove it and place it into a bucket. Be sure to take care not to damage or lose the o-ring when detaching this piece!

Once this is done, you should start slowly moving the gear shift lever through different positions while someone else starts adding new fluids into the transmission system. As this happens, you may notice that some debris might start coming out of your tube and into the bucket; keep an eye out on this because these are indications that you are effectively pushing out all old fluid contained within the system.

After some time and multiple rounds of changing gear positions and adding new fluids, you should wait until all air has been eradicated from your system before ensuring its full replacement with fresh new fluids using a funnel or dipstick tube. When completed successfully, add back back in any removed parts/components and test drive cautiously to ensure everything works fine – be safe! Finally, a quick flush with transmission oil should do just fine congratulations youve just learned how to effectively bleed transmission fluid from your vehicle!


Before bleeding the transmission fluid, it is important to prepare the vehicle correctly. This includes checking the level of the fluid and making sure that all the necessary parts are in working order. You may also need to make sure that the vehicle is parked on a level surface for easy access.

Bleeding Process

Once all the necessary preparations have been made, you can begin to bleed the transmission fluid. Begin by locating and removing the drain plug from the transmission pan. Once removed, allow any excess fluid to drain out into an appropriate container. Re-install the drain plug once all of the fluid has been drained out.

Next, you will need to locate and remove the bleeder valve from on top of the transmission pan. Use a wrench to loosen and remove it, then attach a piece of rubber hose over it. Make sure that one end of this hose is placed in an appropriate container and that it is securely attached so that no fluid can escape during this process.

Once everything is properly attached and secured, slowly turn on your vehicle’s engine until you hear a steady stream of bubbles coming out of the hose end in your container. This indicates that all of the air has been bled out and that it’s safe to turn off your engine again. Finally, re-install both drain plug and bleeder valve before filling up with fresh transmission fluid according to your vehicle’s specifications.


Bleeding transmission fluid is not a difficult task but it does require some knowledge and preparation beforehand as well as following safety protocols during its execution in order to ensure proper performance and longevity for your vehicle’s transmission system. With these simple steps in mind, you can easily take care of this maintenance task yourself without needing any professional assistance or expensive tools!


Transmission fluid is an important component of your vehicle. It helps to lubricate the gears and other components, and helps to protect the transmission from wear and tear. It’s important to keep your transmission fluid in good condition, but it can be a tricky process. In this article, we’ll take a look at how to bleed transmission fluid, including what tools you need and how to go about it.

What You’ll Need

Before you start the process of bleeding your transmission fluid, there are a few items you will need. Firstly, you will need a jack or jack stands so that you can safely raise your vehicle off the ground. You will also need some new transmission fluid make sure it is the same kind as the one currently in your vehicle as well as a wrench or ratchet set and some rags or paper towels.

How To Bleed Your Transmission Fluid

Once you have all of the necessary items ready, you can begin the process of bleeding your transmission fluid. The first step is to locate the drain plug on the bottom of your transmission pan this should be clearly marked on most vehicles. Remove the plug with a wrench or ratchet set, then place a rag or paper towel beneath it to catch any excess fluid that may come out.

Next, use your jack (or jack stands) to raise each corner of your vehicle off of the ground until it is high enough for you to comfortably access underneath it. Once you have done this, locate the bleeder valve on top of your transmission pan this should also be clearly marked on most vehicles then use a wrench or ratchet set to open it up all the way.

Now that both plugs are open, let all of the old fluid drain out into the rag or paper towel beneath them before replacing both plugs and tightening them securely with your wrench or ratchet set. Next, refill your transmission with new fluid until it reaches its full capacity make sure not to overfill! Finally, start up your engine and allow it to run for around 10 minutes while keeping an eye on both plugs for any signs of leakage. If everything looks good after 10 minutes have passed then you know that you’ve successfully bled your transmission!

FAQ & Answers

Q: How do I know when I need to bleed the transmission fluid?
A: You will need to bleed the transmission fluid when the fluid is old, contaminated, or has been changed. Additionally, if you are experiencing any transmission issues such as hard shifting or slipping gears, then it is a good idea to bleed the transmission fluid.

Q: What tools do I need for bleeding my transmission fluid?
A: You will need a wrench set, a funnel and a clean container for collecting the old fluid. Additionally, you may need an adjustable wrench for removing and tightening hoses, as well as a ratchet and socket set for removing drain plugs.

Q: How do I actually bleed my transmission fluid?
A: To start, make sure your vehicle is in park or neutral and the parking brake is engaged. Next, locate the drain plug at the bottom of your vehicle’s transmission pan and use your wrench to loosen it. Once loosened all of old transmission fluid should start to drain out into your container. When finished draining all of the old fluid be sure to tighten up the drain plug and refill with new clean transmission fluid until it reaches just below the full line on your dipstick. Finally start up your vehicle and run it through each gear while keeping an eye on your dipstick to ensure that it stays full.

Q: Do I have to replace my filter when I’m bleeding my transmission fluid?
A: Generally speaking you don’t have to replace your filter when bleeding your transmission fluid unless it has been damaged or contaminated in some way. If you are unsure about whether or not you should replace it then you can always consult with a professional mechanic who can give you specific advice about what needs to be done with regard to filter replacement.

Q: How often should I bleed my transmission fluid?
A: Generally speaking you should aim to have your transmission flushed every 30-40 thousand miles depending on how often you drive and what type of driving conditions you encounter on a regular basis. Additionally, if you experience any sort of noticeable issues with your car’s shifting then it might be a good idea to get a flush sooner rather than later so that any potential problems can be addressed before they become too severe.

In conclusion, bleeding your vehicle’s transmission fluid can be a simple and quick process that can help to keep your vehicle running smoothly. Although it may seem intimidating, it is a simple process that can be done at home with the right tools and knowledge. Taking care of your transmission fluid will help to keep your car running at peak performance and prolong its life.

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