pluton
Senior Member
Does it matter which radiator one installs in one's MTM 4Runner?
The inlet/outlet for the ATM hoses can be securely plugged, and represents no additional threat to the integrity or reliability of the cooling system.
Radiator from Manual and Auto the same?
- Thread starter djskorch
- Start date
The inlet/outlet for the ATM hoses can be securely plugged, and represents no additional threat to the integrity or reliability of the cooling system.
brillo_76
Elite Member
That's most likely what they decided to do with the percentage of manuals out there in the 3rd gens.
Folks should have an option though. As its 2 more connections that could theoretically leak. Especially as the rads get older.
I know if my 1997 5 speed radiator went bad I rather not put radiator with a transmission cooler in if I had a choice and I sure alot of others are feeling the same way.
I guess I could always get a koyo all aluminum rad and have the cooler removed and tig the holes shut.
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brillo_76
Elite Member
You could do that very easily if you wished. I rather eliminate the chance transmission fluid getting into the coolant system.
Why not just use a tundra transmission power steering and transmissions coolers and make a few mounts for them.
sleepydad
Senior Member
you know.... I have been wondering for a long time.... how hot does the ATF in the power steering really get? You wouldn't want to over cool it, having a thermostatic valve inline to help keep it the optimal temp.
I did that entire project for my trans cooler with separate thermostat and bypass valve and external cooler. I watched auto trans temps for a long time and the temp does go up and down quite a bit. sand dunes can spike temps up to 270-280 without too much effort at tall. after doing my setup the temp just sits between 175-180 and will spike in dunes up to 200 when crazy fun time happens.
so I guess what I'm saying is god dam you Doc now I need to start collecting parts for a power steering cooler system.
19963.4lsr5
New member
I had a few vehicles with factory power steering coolers over the years.
Usually every other oil change I suck the PS tank dry and add fresh stuff.
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Usually every other oil change I suck the PS tank dry and add fresh stuff.
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brillo_76
Elite Member
On my 3rd gens 4 runners. There isn't any power steering cooler anywhere on the rigs.
They have a transmission cooler and an oil cooler and a radiator for the engine cooling.
Do you happen to have a photo of your power steering cooler?
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pluton
Senior Member
I'll look tomorrow during dayight. I might be remembering the arrangement on my previous rig, a '91 4WD truck.
brillo_76
Elite Member
sleepydad
Senior Member
Ok.
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The only difference as far as I know. The manual radiator was a couple of inches shorter on the bottom so you know that section of the radiator that drops down below the frame rails? yep gone. so if your going for high clearance on the bottom the manual radiator tucks up between the frame rails where the auto one hangs down. had I know this at the time I would gone with the Radiator and not the champion one I used.
OSC Tacoma #1985 Radiator
it is my understanding that this one bolts right up, however the lower fan shroud needs to be modified because it's slightly difference on the taco. not sure if you can grab one from the taco and have it work on the 4runner? probably?
so if you hell bent on getting a true manual rad then this is probably the only option, unless you want to have something custom done.
https://www.toyota-4runner.org/3rd-...les-98-manual-sr5-4runner-45.html#post2551983
brillo_76
Elite Member
I probably put an all aluminum one on and remove the auto trans cooler. Weld the holes shut. Use an auto plastic fan shroud so everything fits good when my 5 speed original rad starts to fail. I would imagine an all Aluminum rad would last longer then the denso anyways as the top and bottom gaskets and plastics degrade. 
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Cygnus
New member
Koyo has one if you're willing to pay $300+ for it. I've also seen forum posts about certain Tacoma radiators (maybe) fitting.
Koyorad VH010665N
Here's a google link to the current available prices.
Koyo Racing Radiator for 96-02 Toyota 4Runner 2.7L / 3.4L MT | Google Shopping
I was in a time bind putting this one in, so went with the Duralast C1998 (aka Spectra CU-1998) that was available at AutoZone (and also went nicely into my '98 with AT a few months ago), but taking out the (original?) that doesn't have the ATC fittings broke my heart a little. I'll probably step up to Koyo's MT rad if there's a next time. ~m.
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pluton
Senior Member
I looked; no cooler for P/S. It was an A/C line connected to the dryer.Ok.
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