Adding a trans cooler - Toyota FJ Cruiser Forum
Transmissions / Transfer Cases / Traction Aids This area is for discussion, questions and problems with the FJ Cruiser's gear train, including topics on A-TRAC, VSC, locking diffs, gear ratios, manual vs. AT, etc.

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post #1 of 28 (permalink) Old 03-14-2019, 10:25 PM Thread Starter
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Adding a trans cooler

I have a 2010 fj. I’m adding a trans cooler and wanted to know which line coming out of the radiator is the return line to the transmission. I’d like to add the cooler after the radiator.

If anyone has a good diagram or tips , that would be awesome !

I know there’s a few thread that used to have pics but photobucket killed them all.

Thanks

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post #2 of 28 (permalink) Old 03-15-2019, 01:26 AM
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Re: Adding a trans cooler

Bottom line and it will be cooler than the line coming in.
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post #3 of 28 (permalink) Old 03-15-2019, 07:43 AM
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Adding a trans cooler

I canít remember which line mine was but start the engine cold and stall the converter (hold the brake give it some throttle) for a few seconds and one line will be much hotter than the other.
Thatís a for sure way to tell which line is from the transmission and which line is from the heat exchanger in the radiator. Obviously Iím sure you know this, but be sure no one is standing in front of the car, donít be inside your garage and use common sense so the fj doesnít lunge forward and hit someone or something.

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post #4 of 28 (permalink) Old 03-15-2019, 07:53 AM
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Re: Adding a trans cooler

I just installed mine. Goes in on top hot and comes out on the bottom cooled.

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post #5 of 28 (permalink) Old 03-15-2019, 08:02 AM
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Re: Adding a trans cooler

The upper one is the inlet to the stock trans cooler. Leave that one be. Go from the lower (outlet) one to your new trans cooler, then from your new trans cooler to the steel line that takes it back to the trans. (where the lower hose went to)

When I put my 679 in I was able to use just the hose that came with the kit....its a little tight, and far to the right side, but it worked. I had purchased 10' of hose and it ended up just being too small ID to work for me.

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post #6 of 28 (permalink) Old 03-15-2019, 09:20 AM Thread Starter
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Thanks for all the help guys.

I purchased this cooler . It’s a little pricey but I liked the stock mounts. Figured I’d share if anyone was interested.

https://www.kaon.com.au/store/p30/FJ...ooler_Kit.html
rotorhed1 and JG1967 like this.

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post #7 of 28 (permalink) Old 03-15-2019, 01:00 PM
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Adding a trans cooler

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Thanks for all the help guys.

I purchased this cooler . Itís a little pricey but I liked the stock mounts. Figured Iíd share if anyone was interested.

https://www.kaon.com.au/store/p30/FJ...ooler_Kit.html


It looks nice how it mounts but my only concern is the info on the page. 2011-2016 fj cruisers? Unless the fj was still made until 2016 in some countries that Iím not aware of. And donít you have a 2010?


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post #8 of 28 (permalink) Old 03-15-2019, 02:29 PM
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Re: Adding a trans cooler

Quote:
dabeyta3 previously said: View Post
It looks nice how it mounts but my only concern is the info on the page. 2011-2016 fj cruisers? Unless the fj was still made until 2016 in some countries that Iím not aware of. And donít you have a 2010?


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The FJC is still sold here in the Philippines and I have a 2016 model, its also sold in the middle east as well. For cooler I went with Hayden 679 but any major make will do from B&M, Tru Cool or Derale. Always the lower pipe, you want the stabilized usually heated oil from radiator to the auxiliary cooler to cool down further before it goes back to the tranny.
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post #9 of 28 (permalink) Old 03-16-2019, 02:23 PM Thread Starter
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I called and talked to them . Probably going to have an absurd phone bill. Anyways 2010-2016 are the same and the cooler will fit with the same brackets.

I got it on sale for 168 with brackets

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post #10 of 28 (permalink) Old 03-16-2019, 06:23 PM
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Re: Adding a trans cooler

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thomkat previously said: View Post
I called and talked to them . Probably going to have an absurd phone bill. Anyways 2010-2016 are the same and the cooler will fit with the same brackets.

I got it on sale for 168 with brackets
Get yourself a Hayden 679, I managed to fit mine using the brackets included with it, cost me $65 on Amazon.
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