Mineral Spirits To Flush Factory At Cooler?

[olddirtyrake]

Ok I know this subject has been over posted but I have a new question. I live in Duluth MN it gets really cold. I bought a new Aftermarket AT cooler but wonder if installing it alone would be a mistake. It says to install it in series with factory cooler. I know factory cooler has a tendency to clog, so that poses a problem. I want my tranny to be warmed up in winter so installing it in series with factory would solve that. My uncle is a transmission mechanic and he flushes the factory AT coolers with mineral spirits. So I was wondering if I flushed cooler with mineral spirits and change the at fluid and clean the screen(is it a screen or filter that is replaceable?)would that be Ok or is anyone out there running a strait AT cooler not in series in colder climate without any issues?

[Kingman]

Because of the fin style cooler, it cannot be flushed once it is clogged. The RE4R01A transmissions are known to generate more debris, causing thenm to clog.

[GrimGreg]

Just bypass the stocker, if you are worried about getting to cold, mount the cooler to the top right behind the radiator, that is where the hot coolent comes into the radiator, so some of the heat will radiate back to the cooler. As for the "filter", it is just a screen, ment to be cleaned and reused. You would only need to replace it if it was damaged in some way.

[Precise1]

I asked about the cold weather effect and people who live in miserable places (in the winter) like Simon and GG say that they have no problem driving in the snow/frozen conditions. I'd try the aftermarket cooler solo first, you can always include the radiator cooler later. I understand that Nissan D automatic tranny fluid makes shifting smoother, and here is my solution to some of the issues...

 

http://www.nissanpathfinders.net/forum/index.php?showtopic=24503

 

B

[olddirtyrake]

Well, I don't know if this could have gone any worse. I dropped fluid, refilled amount drained, cycled through the gears slowly and it wont shift into any gears. I wasnt that scared at first figured not enough fluid maybe. So I removed both cooler lines put big Ziploc bags on the end duct taped started it to see which shot fluid out. well about a quart or two came out then sputtered I refilled and noticed I have a leak further up in the at cooler line the metal one. So I was wondering if I just snip the metal line and just use rubber if that would be ok or does it need that much metal line for the pressure? And now I see a good oil leak as well from the passenger side of the engine. tightned the oil filter and going to snug valve covers. Hopefully this will do it. I just had it driving the the night before I dropped the fluid tranny wouldnt be shot just from changing fluid would it be? maybe just low on fluid but I read the damn fluid level and it says its full. seems like theres air in the tranny still. this is so frustrating.

[Simon]

You can definitely use rubber hose for the lines, and could go as long as you want with them. The steel is only there to ensure that the lines stay tucked away from heat sources, and so that they're ruined properly.

 

Pressure is not necessary.

[MikeV]

disconnect the stock cooler for sure, I run my cooler in front of the radiator; in winter I partially cover the radiator/tranny cooler and everything runs fine.

If I didn't cover it I would never get heat!-)damn thing would run too cool. But never shifting issues.