2008 Tundra SR5 4.0L V6 - Tranny fluid cooler line.... Where is it?

Hello All,

I am a newbie to Tundra, I am trying to replace all of the fluid in my transmission, but I am having difficulty locating the tranny fluid cooler line, can you please guide me to find it? where should I look? What can I follow to located that? I do not want disconnect the wrong thing!

Best,

 

If you are starting to work on your truck I suggest to buy a service manual. Haynes manuals are good and can be had for 20-40 bucks. They have a ton of useful info and easily pay for themselves with some maintenance, upgrades done by you vs paying a shop..

 

First of all, do you have an external transmission cooler? Smaller radiator in front of A/C condenser on passenger side.

If not, no cooler lines. If yes, follow the lines from cooler back to transmission.

Greg

 

Hi Greg,

I am not 100%. Based on what I have seen, the answer is no. I will upload some pictures shortly.

If there is no cooler line from the transmission, what would you suggest that I do to drain the transmission fluid? Thanks. My Tundra has 180k on it, it needs all new fluid.

Eliz

 

I assume your plan was to disconnect the hose to the cooler and pump fresh fluid through the system from the pan until fresh displaces all the old. In the absence of a cooler, there is no line to disconnect to replicate that procedure.

In any case, you would have to do a drain and fill to start with fresh fluid in the pan, using the drain plug in the pan.

So, doing a drain and fill only will get you about halfway there, half new fluid and half old. Drive the truck 5k miles and do it again, you will be at 75% new at a cost of half the drained fluid being the new stuff you put in before.


Greg

 

Hello Greg,

Thanks for this. I read your post late, I basically did what you recommended. Except, I drained and refilled 3 gals after leaving the engine on for 30 to 40 seconds. The fluid is getting red, but it is clear the previous owner has not serviced it for the past 180k. I might do it one more time after putting couple 1000 miles on it.

The reason why I wanted to change it is because of the shudder at 45-50mph... It runs fine after 15 miles... I can still feel a little shudder when start from cold.