I know there’s a bunch of threads for the drain and fill on these 4th gens, but I couldn’t find anything that answered my question.

So, I did a drain and fill about two weeks ago on my 2008 4Runner 4.0 V6. Drained the transmission fluid just fine, about 3.5 quarts came out. I filled it back up with about 3.75-4 quarts. Got the tranny temp up to 118F and took the level check plug off, when I did, I was not getting a “small trickle” as Toyota says you should, so I filled a little more fluid in, etc. still wasn’t getting a trickle.

It’s kind of a long story, but to make it short, my father prematurely turned the engine off while the check level plug was off, so about a quart of fluid came rushing out and I lost it. Luckily I had bought 5 quarts. So I filled it back up to where I was getting a little flow of fluid coming out with the tranny temp in the 115-130F range. My question is, since it’s been about two weeks, would it be bad to get the transmission temp back up between the 115F-130F range and pull the check level plug again to see if I’m getting a steady flow, and if so...should I let the extra fluid out till I get that “small trickle”?

It’s my first transmission job ever, so I guess you live and learn

Thanks for the help

Certainly won't hurt to check. Fluid level is pretty important to the transmission, affects how well it performs in general. You should only have a light trickle when you put the plug back in. Make sure you shift through all your gears a few times before returning to park and leave engine running (Dad) when you check the level.