Bleeding the Transmission Jack: Step-By-Step Guide

If you're like most people, the thought of bleeding a transmission jack may seem complicated and daunting. However, it's a simple process that anyone can do with just a few tools and patience. In this blog post, we'll walk you through bleeding a transmission jack so you can do it yourself next time you change your transmission fluid. Let's get started!

What is a Transmission Jack?

A transmission jack is a hydraulic system that helps to raise and lower transmissions. They are often used in automotive shops when working on transmissions, but they can also be used for other heavy-lifting applications. Transmission jacks use a pump to push hydraulic fluid through hoses and cylinders.

Why Do You Need to Bleed a Transmission Jack?

Over time, air can get into the hydraulic system of a transmission jack. This is usually due to leaks in the hoses or fittings. When the air gets into the system, it can cause the jack to work less efficiently and may even prevent it from working altogether. That's why it's important to bleed the transmission jack regularly to remove any air from the system.

How to Bleed a Transmission Jack

Now that we've answered the question "what is a transmission jack," it's time to get into the nitty-gritty of how to bleed one. The process is pretty simple, but you must have all the necessary tools before you get started. You'll need a transmission jack, a hydraulic fluid pump, and a clean container to catch the fluid.

Once you have all of your supplies, follow these steps to bleed the transmission jack:

  1. Begin by attaching the hydraulic fluid pump to the transmission jack. Ensure the pump is securely attached, so there are no leaks.
  1. Next, turn on the pump and let it run for a few minutes. This will help prime the system and eliminate any air bubbles that may be present.
  1. Once the pump has been running for a few minutes, turn it off and check the fluid level in the transmission jack. If it's low, add hydraulic fluid until it reaches the fill line.
  1. Now, turn on the pump and let it run until you see a steady stream of fluid coming out of the bleed valve. At this point, you can turn off the pump and close the bleed valve.

That's it! You've now successfully bled the transmission jack, which should be ready for use.

As you can see, bleeding a transmission jack is pretty simple. Just ensure you have all the necessary tools and follow the steps above. You'll be back to lifting transmissions in no time!

Tips and Tricks for a Successful Bleed

Now that you know how to bleed a transmission jack, here are a few tips and tricks to make the process go even smoother:

  • Always use fresh hydraulic fluid when bleeding the system. This will help to prevent any contaminants from getting into the system.
  • Be sure to check for leaks before and after bleeding the transmission jack. This will help to ensure that the system is functioning correctly.
  • If you're having trouble getting the air out of the system, try bleeding the jack upside down. This will help to force any air bubbles to the top of the system, where they can be bled out more quickly.
  • Have patience! Bleeding a transmission jack can take some time, so be patient and don't try to rush the process.

By following these tips, you'll be able to bleed your transmission jack like a pro!


Bleeding a transmission jack is a simple process that anyone can do with just a few tools and patience. This blog post covered everything you need to know about how to bleed a transmission jack. We've also included some tips and tricks to make the process easier.

So, what are you waiting for? Get out there and start bleeding your transmission jack today!