Quote:
Originally Posted by Marde
Thanks for the added info Gatafly.
The OP showed the inlet and outlet hose location on the trans. Here is that pic:
When I get around to doing this job, I will likely be disconnecting one or both of these hoses at the radiator/trans cooler. Does anyone remember which hoses is which?
Trans fluid hose on the Top side of radiator = green -oil cooler outlet
-or-
Trans fluid hose on the Top side of radiator = red -oil cooler inlet
Logically (to me) seems like the red-oil cooler inlet should be the Top hose on the radiator/cooler... and the bottom one (on the radiator) would be the green -oil cooler outlet.
I can and will trace the lines from the trans to the cooler in order to answer this question, but thought I would ask the question anyway because the 4R is not here, not mine, and only see the 4R occasionally.
Thank you.
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Just did this on my GX(essentially 4Runner with a tow pkg) and the top (green) line is the top side of the radiator. The fluid pumped from the transmission came out of the rubber hose that attaches to the radiator. It did not come out of the radiator. Hope this makes sense and helps.
I did not disconnect the red line to refill and instead refilled through the fill plug hole.
All in all, I flushed 11 quarts and refilled the trans with 12 to make sure there was some coming out during the fluid temp check.
Some more notes:
- Initial drain was 3.25 quarts
- At 69k miles, fluid looked like used black motor oil. Actually thought for a sec I pulled the plug.
- Flushed 2 quarts at a time. I did a long 10ish count for each quart.
- I had access to a lift and snap-on scangauge/techstream so I could pull the actual trans temp in real time (no jumping wires in the OBD port)
- After my 11 quart flush/12 quart fill, initial trans temp was 93. ATF I used was room temp. Ambient temp was about 70.
-I did drive about 30 miles prior to starting and waiting about 3 hours.
- During the temp/fluid check, the overfill fluid was brand new, bright red. Therefore, you can successfully replace all your fluid with 11 quarts.
- During two of my two quart flushes, I cycled through all the gears. It was quick but doable.
- I used Amsoil Signature Series Fuel-Efficient ATF which is what they recommend for WS replacement. Post flush 40 mile drive was uneventful. Seems smoother and quieter but might just be placebo. I'll be running this fluid for at least 50k miles.