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Guest Message by DevFuse
 

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95 4EAT transmission cooler lines question EASY!!


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7 replies to this topic

#1 SUBARU3

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Posted 17 May 2007 - 11:58 PM

I'm puttting in a trans cooler on my 95 Legacy 4EAT. I'm installing cooler after the radiator cooler.

So out from trans, into radiator, out of radiator, into external cooler and then back to trans.

Question....which line is the inflow and outflow? There are 2 lines into the trans, one at the rear/ drivers side and one closer to the front/drivers side. Which line pumps the fluid OUT of the trans?

Thanks!!

Todd

#2 nipper

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Posted 18 May 2007 - 12:10 AM

Blind guess, the one towards the front, thats where the pump is.

nipper

i can be wrong, just the hour is late and not too sure.


nipper

#3 SUBARU3

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Posted 18 May 2007 - 12:32 AM

I think your right. I looked at my Impreza. But still not willing to bet on it.

#4 porcupine73

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Posted 18 May 2007 - 06:17 AM

I'm trying to remember for sure when I did mine...My '96 has the cooler in the LH side of the radiator. I think the top hose was the return to trans and the bottom hose was the supply from trans.

The best thing to do is yank one of the hoses, run some of that 3/8" cheap clear vinyl hose from home despot from the cooler and the hose you pulled into an old milk jug, and just hit the starter for a second.

#5 grossgary

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Posted 18 May 2007 - 10:49 AM

after removing the lines, just crank the car over, you'll see which one fluid comes out. don't start it or run it like that, just crank it as a test.

i wouldn't use the radiator cooler at all. run the trans lines to the cooler and back. using the radiator adds nothing but more failure modes to your trans...more hoses, more clamps and even worse, your radiator is old or will be at some point and you can't see the internal cooling mechanism to see if it's failing, corroded or compromised in anyway. just use your new dedicated cooler.

#6 The Dude

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Posted 18 May 2007 - 06:24 PM

after removing the lines, just crank the car over, you'll see which one fluid comes out. don't start it or run it like that, just crank it as a test.

i wouldn't use the radiator cooler at all. run the trans lines to the cooler and back. using the radiator adds nothing but more failure modes to your trans...more hoses, more clamps and even worse, your radiator is old or will be at some point and you can't see the internal cooling mechanism to see if it's failing, corroded or compromised in anyway. just use your new dedicated cooler.


I have to question your advise in this occasion. The in radiator cooler operates on a fluid-to-fluid heat exchange which is many times more effective than the fluid-to-air heat exchange of the add on cooler. An add on cooler is just that, an add on. It can only be used to provide relatively modest amounts of additional cooling. An add on cooler should never be used in place of the in radiator cooler. You would end with considerably less cooling capacity as the result. Your AT would become one big deep fryer on wheels. Do you want fries with that tranny?
Not me.

#7 porcupine73

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Posted 18 May 2007 - 08:11 PM

If you do decide to go with just the aftermarket cooler and bypass the in-radiator cooler, go with a big enough cooler to take the load. Just as an example, Perma-cools instructions tell you what their minimum size cooler is for various kinds of vehicles if you desire to bypass the in-tank cooler. Nobody wants coolant in their ATF.

The in-tank cooler to a degree acts like a temperature buffer. It can help warm the ATF when it's cold and cool it when it's hot.

Also, there is an OEM Subaru ATF cooler kit available if you want to go that route.

#8 SUBARU3

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Posted 19 May 2007 - 02:24 AM

Well for the record, it's the front, forward most line that is the output.

I used the in line setup. Into the radiator, out into the external cooler and then back to the trans.

Thanks all for the good dialog!!



Todd




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