Extreme Terrain
4x4Wire Trail Talk Forums: Jeep, Toyota, Mitsubishi, Pajero, Isuzu, Kia, 4WD, 4x4, SUV, Off-Road and OutdoorWire Forums


Search

Recent Posts on TrailTalk
Sad day for my wife Gen III
by rxinhed - 12/04/21 06:08 PM
2.6 balancer bolt
by JAVYPRO - 12/04/21 04:09 PM
Montero Sport oil filter bracket
by OldColt - 12/04/21 10:27 AM
monty build thread
by motero - 11/30/21 07:57 PM
Happy Turkey Day
by motero - 11/30/21 07:45 PM
OG folks chime in!
by motero - 11/22/21 08:28 PM
JK Check Engine Light - P0300
by 4x4Wire - 11/17/21 09:08 AM
Support 4x4Wire
New Topics on TrailTalk
Sad day for my wife Gen III
by JAVYPRO - 12/04/21 04:30 PM
2.6 balancer bolt
by JAVYPRO - 11/30/21 08:38 PM
monty build thread
by motero - 11/30/21 07:57 PM
Happy Turkey Day
by rxinhed - 11/25/21 08:55 PM
1991 Diesel Swap
by guzzilapd - 11/11/21 03:49 PM
JK Check Engine Light - P0300
by 4x4Wire - 11/09/21 12:31 AM
4x4 Gallery
Photos of rig
Attila
99 Monterrible Sport
Scar the Cylon Raider
Mercenary Sergeant: Code Name "Sapphire"
More News on the 'Wire

4x4Voice
4x4Wire
MUIRNet-News
OutdoorWire
Who's Online Now
0 registered members (), 84 guests, and 4 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums37
Topics138,250
Posts1,081,587
Members15,228
Most Online907
Dec 28th, 2019
Previous Thread
Next Thread
Print Thread
Rate Thread
Page 2 of 2 1 2
Re: 97 montero sr Any one added a fan or two? [Re: ES_97Sport] #1101666 07/01/16 04:17 PM
Joined: May 2016
Posts: 41
M
MMeadows Offline OP
Getting the Wheeling Fever
Originally Posted by ES_97Sport


That's what I thought. Yea, the OP would probably be better off looking through the Cherokee threads. Lots of info on there about transmission coolers.

What I got off those threads was to pull the transmission out of the radiator and install a standalone cooler. About half put one in front of the condenser/radiator. The guys running 37/38+ tires install a separate cooler with its own fan and put it where it'll fit.

Mitsu never did a deep sump pan for the AW3, but there is a company out there that does sell one. The dipstick is on the PS side though. For whatever its worth. General opinion seemed to be leaning towards that not being worth the effort - what was really needed was a separate cooler and/or fan.

I'm not a huge fan of the in-radiator cooler. It is nowhere near as efficient as a properly installed stand-alone unit.

Edward


It looks like my montero comes with a stock cooler and it also runs into the radiator as well. So the suggestion would be to add a 2nd cooler with a fan, and leave the oem cooler without a fan?

I did a full flush and the fluid was brown, didnt smell but was not red. I have a trip coming up this weekend ill see how it goes. You do have my worried about my radiator now though.


97 Montero SR: 2in body lift. 33" KM2

Support our sponsors
Re: 97 montero sr Any one added a fan or two? [Re: MMeadows] #1101672 07/01/16 08:25 PM
Joined: Jul 2003
Posts: 850
ES_97Sport Offline
Rock Warrior
*****
Originally Posted by MMeadows
... It looks like my montero comes with a stock cooler and it also runs into the radiator as well. So the suggestion would be to add a 2nd cooler with a fan, and leave the oem cooler without a fan?

I did a full flush and the fluid was brown, didnt smell but was not red. I have a trip coming up this weekend ill see how it goes. You do have my worried about my radiator now though.


No, you're not supposed to run multiple coolers. Besides causing flow restrictions, multiple coolers and all the line will themselves raise the temperature of the fluid. For all that I've ever heard or read, this is considered pretty much universally to be a 'bad idea'.

For me - I'm building a '99 Sport on 37"s with the same transmission you have - I'm going to pull the A/T stuff out of the radiator and run a big aftermarket in front of the condenser. If it'll fit and if it doesn't restrict air flow to the condenser and radiator. Plan 'B' is a big cooler with a fan mounted, uh, somewhere. I haven't figured the 'where' out yet. laugh

That was the decision I arrived at after pouring though Pirate, 4MUD, the AW4 forums, towing forums and talking to the A/T shop that builds these for off-road use and talking to the Jeep shops.

What you're describing sounds a lot like what I've seen out with the Cherokee/Toy guys off road. The idea behind the in-radiator cooler is that it warms the fluid up when its cold, and cools the fluid when its hot. That's the one benefit of the in-radiator cooler over a passive A/T cooler - it works even when you're standing still. Mostly. laugh

You MAY be having a problem with the radiator. I'm religious when it comes to fluid flushes but most people are not and that leads to scale and crud build up especially in the radiator and since the in-radiator cooler isn't that efficient it doesn't take much to affect it.

I would run an OBD scanner and monitor ECT over a good period of time under various conditions and see if the average coolant temp is elevated. If so you could kind of infer that the radiator is either dirty internally and/or externally and needs cleaned - assuming of course, that everything else is sound.

Which brings up something else to check. Either the condenser or radiator or both may be full of bugs, leaves, dirt, mud, etc. restricting air flow just enough that you're starting to see the beginnings of a cooling problem. Easy enough to fix - remove the radiator and take a garden hose or a pressure washer on low and flood water through the fins in reverse of air flow. Leave the condenser installed and do the same for it before you reinstall the radiator. This is probably something that is long overdue in anyway. laugh

In any case, if I were going to off-road the AW4 I would get a real cooler and use that. Its a good transmission and the only time anyone really has issues with it is when its overheated. I know guys here in CO that run 37, 38 and 40 inch tires on it and have for years without issue but they run big coolers.

Edward


'97 Montero Sport LS 5-Speed 3.5L conversion
SAS Dana 44s & ARBs, 35" Yoko Geolandar M/Ts
NP231 B4R doubler/Terra Low231/RP 5.38 229:1
'99 Montero Sport Limited 4WD SAS 3-link project
'03 Montero Sport Limited AWD
'97 Montero Sport LS 5-Speed 4WD
Re: 97 montero sr Any one added a fan or two? [Re: MMeadows] #1101681 07/01/16 11:58 PM
Joined: Jan 2001
Posts: 13,649
fasteddy Offline
Web Wheeler
*****
Ditto. Note that the at temp sensor is known to trip when wet, worth checking, or use a gauge and sender.


Not responsible for advice not taken...
Re: 97 montero sr Any one added a fan or two? [Re: MMeadows] #1101820 07/23/16 02:08 PM
Joined: May 2016
Posts: 41
M
MMeadows Offline OP
Getting the Wheeling Fever
the 97 montero sr comes with a transmission cooler stock, Is it advisable to replace it with a bigger one or simply add a fan? Id imagine the fan would offer more cooling power and adding more volume would. Ive also heard its best to add a fan on the back side of a cooler to not restrict air flow coming from the front.


97 Montero SR: 2in body lift. 33" KM2

Re: 97 montero sr Any one added a fan or two? [Re: MMeadows] #1101837 07/27/16 09:56 PM
Joined: Jul 2003
Posts: 850
ES_97Sport Offline
Rock Warrior
*****
Originally Posted by MMeadows
the 97 montero sr comes with a transmission cooler stock, Is it advisable to replace it with a bigger one or simply add a fan? Id imagine the fan would offer more cooling power and adding more volume would. Ive also heard its best to add a fan on the back side of a cooler to not restrict air flow coming from the front.


Put a A/T temperature gauge on your transmission. A good one, not a cheap POS. That will tell you whether or not you need to be touching anything.

Pusher fans are not nearly as efficient as puller fans. As a rule of thumb, you always want an electric fan to pull air.

Edward


'97 Montero Sport LS 5-Speed 3.5L conversion
SAS Dana 44s & ARBs, 35" Yoko Geolandar M/Ts
NP231 B4R doubler/Terra Low231/RP 5.38 229:1
'99 Montero Sport Limited 4WD SAS 3-link project
'03 Montero Sport Limited AWD
'97 Montero Sport LS 5-Speed 4WD
Re: 97 montero sr Any one added a fan or two? [Re: MMeadows] #1101842 07/28/16 09:06 PM
Joined: May 2016
Posts: 41
M
MMeadows Offline OP
Getting the Wheeling Fever
Does the stock a/t temperature unit record temps that a Bluetooth odb reader could display or does it just turn a light on after it reaches a threshold?


97 Montero SR: 2in body lift. 33" KM2

Re: 97 montero sr Any one added a fan or two? [Re: MMeadows] #1101851 07/29/16 05:56 PM
Joined: Jul 2003
Posts: 850
ES_97Sport Offline
Rock Warrior
*****
Originally Posted by MMeadows
Does the stock a/t temperature unit record temps that a Bluetooth odb reader could display or does it just turn a light on after it reaches a threshold?


As far as I know from my research, and someone please correct me if I'm wrong 'cause I want to know the definitive answer to this, too, the answer is no. The older systems were made up of a ECM (engine control module) and a TCU/TCM (transmission control unit/module) with a buss line between the two. OBD didn't extend to the TCU.

Edward


'97 Montero Sport LS 5-Speed 3.5L conversion
SAS Dana 44s & ARBs, 35" Yoko Geolandar M/Ts
NP231 B4R doubler/Terra Low231/RP 5.38 229:1
'99 Montero Sport Limited 4WD SAS 3-link project
'03 Montero Sport Limited AWD
'97 Montero Sport LS 5-Speed 4WD
Page 2 of 2 1 2







4x4Wire Social:

| 4x4Wire on FaceBook |


OutdoorWire, 4x4Wire, JeepWire, TrailTalk, MUIRNet-News, and 4x4Voice are all trademarks and publications of OutdoorWire, Inc. and MUIRNet Consulting.
Copyright (c) 1999-2019 OutdoorWire, Inc and MUIRNet Consulting - All Rights Reserved, no part of this publication may be reproduced in any form without express written permission
You may link freely to this site, but no further use is allowed without the express written permission of the owner of this material.
All corporate trademarks are the property of their respective owners.

Powered by UBB.threads™ PHP Forum Software 7.7.3
(Release build 20190728)
PHP: 7.2.34 Page Time: 0.031s Queries: 16 (0.010s) Memory: 2.8837 MB (Peak: 3.1637 MB) Data Comp: Off Server Time: 2021-12-05 18:08:44 UTC
Valid HTML 5 and Valid CSS