That works. I just like to keep the fluid flowing. Hence why I use an external pump. Works extremely well.
Plus I can push fluid in at a similar rate that is pumping out..
I have a replacement pump that closer to the flow. Then my current setup. The pumps are the key. The closer to the flow match. The faster and smoother exchanges go.
I personally don't care for dumping fluid into the dip stick tube. As I have vehicles that no longer have those and just plugs.
The pump system works on all sealed and unsealed systems.
The sealed systems are actually easier. You can't overfill them..
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7 3rd gens listed in the build thread (2 are parts mobiles)
Build Thread:
https://www.toyota-4runner.org/3rd-g...os-builds.html
Brillo's Bucket Fluid Ex changer:
https://www.toyota-4runner.org/3rd-g...ml#post3358086
Sparks Plugs Wire and Coil Information:
https://www.toyota-4runner.org/3rd-g...on-5vz-fe.html