How to Change Your Transmission Fluid on a 2005 to 2007 Toyota Tacoma 6-Speed

Two quarts of transmission oil
24mm Socket
Oil catch container
Oil hand pump

Step 1:

Park your truck on level ground. If the truck is tilted either way, it can affect how much oil you can put into your transmission. The fill hole is on the side, so you can see it needs to be level. I would wait for the truck to cool off for a little bit, as you will be very close to your hot exhaust and you do not want to burn yourself.

Step 2:

Once your truck is level, the first thing you need to do is see if you can get your transmissions fill plug off. If you drain the transmission first and then find that you cannot get the fill plug out, you will be sitting there with a truck you cannot drive. The transmissions fill plug is a 24mm plug on the side of the transmission on the driver's side of the truck. Turn the wrench counter-clockwise to remove the plug. Be careful when doing this because when the plug breaks loose, your hands will be flying up towards the truck possibly hitting them on something. A few bruised knuckles never hurt anyone, right?

Step 3:

With the fill plug removed, you can now drain your transmission of its old oil. Take your oil catch container and place it under the drain plug. The drain plug is also a 24mm plug that is directly on the bottom of the transmission. You can not miss it, as it is the only 24mm head on the bottom. Break the plug loose and remove it the rest of the way by hand. Let the transmission drain a sufficient amount of time (20-30 minutes).

Step 4:

Once the transmission has drained, put the drain plug back in the transmission and tighten it completely. You can now begin adding the new fluid. The truck requires 1.9 quarts of oil. Take your hand pump and place the pump end in the bottle of oil, and the dispensing end into the fill hole on the side of the transmission. Begin pumping the fluid at this time. Once you have added 1.9 quarts of oil, it will begin to slightly drain back out of the fill hole. You are now done adding the new fluid. Place the fill plug back into the transmission and tighten.

Step 5:

Clean off any oil residue from the transmission and anywhere else under the truck. Wait a few minutes and then check for any leaks. Drive the truck for a few minutes and again check for any leaks.

You have successfully changed the fluid in your transmission.