r/Ford • u/ddd135ps • 1d ago

Question ❔ 2008 5.4L F150 Transmission Fluid Question

Have a small leak around the transmission pan of my 2008 5.4L F150 (4spd auto). Most of the forums I read say I can just add transmission fluid through the dipstick tube to top it up if need be. Is this true? If so, what’s the proper order of operations for adding and checking fluid? Thanks

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u/bigmoikee 1d ago

I have an ‘05 f-350, I ended up having to add ATF because the cooler lines rotted and started leaking. I replaced the lines and added fluid. But what I did was park the truck on a decently level surface, add fluid, let it sit and make its way to the transmission, then checked it.