WJ Transmission Cooler and Line Routing - Page 3 - JeepForum.com

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post #31 of 41 Old 07-31-2013, 07:00 PM Thread Starter
snobrdrkid07
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I'll agree to that. This thread was originally for the 2004 WJ 4.0's


~ 04 WJ Overland 4.7 HO | Graphite Metallic | Quadra-Drive | Vari-Locks | Bilstein 4600ís | ADDCO Sway Bar | Powerstick Exhaust | RB1 | SuperChips Tuned | Much More to Come ~

~ 04 WJ Laredo 4.0 | Selec-Trac | MBP | OME HD 3" Lift | JKS TB | IRO Front LCA's and UCA's| Bilstein 5100's | Silent Armor 245/70/17's | Custom Front D.S. | Stillen Rotors/Pads | Tow Package w/ 3.73's | Moog HD Steering | Kenwood eXcelon HU | Alpine Speakers, Amps, and Subs | Bilstein SS | Auxiliary Transmission Cooler | Rock Lights | Light Bars | Lots of Cool Stuff ~

~ 05 Rubicon Unlimited 4.0 | 6-Speed | Dana 44's | Air Lockers | 4.11 Gears | Rock-Trac 241OR T-Case with 4:1 4-Low | OME HD Springs | Bilstein 5100ís | 245/75/16 Kevlar MT/R's on Moabs | Hansen Offroad Steel F/R Bumpers | Warn 9000xi Winch | Edge Performance Chip | Custom CAI | Hella Off-road Lights | Cobra 29 CB | Flash Lights | Recovery Gear | Fire Extinguisher ~

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post #32 of 41 Old 08-01-2013, 09:01 AM
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It is quite interesting that jeep uses the AC condenser aux cooler for the trans on the 4.0. If I understand correctly that split AC condenser was a 2004 thing only. The Aux cooler portion is quite big.

And another example of auto manufactures getting it right for the last model year.
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post #33 of 41 Old 08-02-2013, 08:20 AM Thread Starter
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So from what I have gathered, in the 2004, 4.0, WJ, ONLY it uses the radiator in it's entirety for the the coolant. The splits the AC condensor in half for the AC system and the transmission fluid cooler.

There weren't any oil coolers on the WJ's to my knowledge.

~ 04 WJ Overland 4.7 HO | Graphite Metallic | Quadra-Drive | Vari-Locks | Bilstein 4600ís | ADDCO Sway Bar | Powerstick Exhaust | RB1 | SuperChips Tuned | Much More to Come ~

~ 04 WJ Laredo 4.0 | Selec-Trac | MBP | OME HD 3" Lift | JKS TB | IRO Front LCA's and UCA's| Bilstein 5100's | Silent Armor 245/70/17's | Custom Front D.S. | Stillen Rotors/Pads | Tow Package w/ 3.73's | Moog HD Steering | Kenwood eXcelon HU | Alpine Speakers, Amps, and Subs | Bilstein SS | Auxiliary Transmission Cooler | Rock Lights | Light Bars | Lots of Cool Stuff ~

~ 05 Rubicon Unlimited 4.0 | 6-Speed | Dana 44's | Air Lockers | 4.11 Gears | Rock-Trac 241OR T-Case with 4:1 4-Low | OME HD Springs | Bilstein 5100ís | 245/75/16 Kevlar MT/R's on Moabs | Hansen Offroad Steel F/R Bumpers | Warn 9000xi Winch | Edge Performance Chip | Custom CAI | Hella Off-road Lights | Cobra 29 CB | Flash Lights | Recovery Gear | Fire Extinguisher ~

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post #34 of 41 Old 08-02-2013, 08:50 AM
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The only thing I can figure out is they kept the same AC condensed and if you had the 4.7 the aux cooler portion was for the powersteering fluid. If you had the 4.0 it became the trans cooler. And the 42 behind the 4.0 needs all the help it can get.

Both 04's I have have the tow package and no extra cooler which also falls in line with a how to tow PDF from Chrysler that says no aux cooler needed.
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post #35 of 41 Old 08-05-2013, 08:01 AM
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My '04 Overland with the 4.7HO definitely has a trans cooler in the radiator because one of the fittings has been leaking since I bought it. There are fittings on the top and bottom of the passenger side of the radiator with hardlines that run down to the trans. It's damn near impossible to get to the top fitting though, which I need to so I can put some teflon tape on it or just plug it and run an Aux cooler instead.

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post #36 of 41 Old 08-05-2013, 12:46 PM
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Quote:
Originally Posted by dcorn
My '04 Overland with the 4.7HO definitely has a trans cooler in the radiator because one of the fittings has been leaking since I bought it. There are fittings on the top and bottom of the passenger side of the radiator with hardlines that run down to the trans. It's damn near impossible to get to the top fitting though, which I need to so I can put some teflon tape on it or just plug it and run an Aux cooler instead.
Yes for the 4.7 that is the only trans cooler. And I'm pretty sure its the same for all V8's with the hydraulic cooling fan.
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post #37 of 41 Old 08-05-2013, 03:31 PM
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Yes and he says his aux trans cooler is part of the AC condenser.
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post #38 of 41 Old 11-20-2013, 06:45 PM
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Wj cooler in a V8 4.7l

Ok, been sugested by the jeep deakler to intall a trannny cooler, s, size, which lines should i connect
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post #39 of 41 Old 07-11-2016, 12:36 AM
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Exactly

Quote:
Originally Posted by 86cj74.2L View Post
On the V8 the cooler in the condenser is for the power steering fluid.
No tranny fluid runs through my condenser. I have an 04 H.O. Power steering for sure. I replaced my condenser today and lost a bunch of power steering fluid. Busted the o-ring. Doh! Started it up and lost almost the whole quart. Wheel would not budge. The power steering pump hated that! Lots of noise. I thought I was going to have to replace the pump but after I added 3/4 of a quart of power steering fluid and checked everything the noise went away. It took a few trips around the block. I will probably end up replacing the pump anyway. I think I may have done some damage but it seems to be quiet now except on full lock, which to me is normal. I will keep an ear out for that terrible power steering pump noise.
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post #40 of 41 Old 07-11-2016, 03:03 PM Thread Starter
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Transmission fluid only runs through the condenser in the late 2004 WJ with the 4.0 engine.
Power steering fluid runs through the condenser in the late 2004 WJ with the 4.7 engine.

~ 04 WJ Overland 4.7 HO | Graphite Metallic | Quadra-Drive | Vari-Locks | Bilstein 4600ís | ADDCO Sway Bar | Powerstick Exhaust | RB1 | SuperChips Tuned | Much More to Come ~

~ 04 WJ Laredo 4.0 | Selec-Trac | MBP | OME HD 3" Lift | JKS TB | IRO Front LCA's and UCA's| Bilstein 5100's | Silent Armor 245/70/17's | Custom Front D.S. | Stillen Rotors/Pads | Tow Package w/ 3.73's | Moog HD Steering | Kenwood eXcelon HU | Alpine Speakers, Amps, and Subs | Bilstein SS | Auxiliary Transmission Cooler | Rock Lights | Light Bars | Lots of Cool Stuff ~

~ 05 Rubicon Unlimited 4.0 | 6-Speed | Dana 44's | Air Lockers | 4.11 Gears | Rock-Trac 241OR T-Case with 4:1 4-Low | OME HD Springs | Bilstein 5100ís | 245/75/16 Kevlar MT/R's on Moabs | Hansen Offroad Steel F/R Bumpers | Warn 9000xi Winch | Edge Performance Chip | Custom CAI | Hella Off-road Lights | Cobra 29 CB | Flash Lights | Recovery Gear | Fire Extinguisher ~

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post #41 of 41 Old 07-11-2016, 03:14 PM
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Quote:
Originally Posted by snobrdrkid07
Transmission fluid only runs through the condenser in the late 2004 WJ with the 4.0 engine. Power steering fluid runs through the condenser in the late 2004 WJ with the 4.7 engine.
to be honest every 99+ 4.0 owner ought to think about getting the condenser assembly for the later model WJ's and the tubing (junk yard or dealer) and use that as the Aux Trans cooler. To me it's a better setup but will cost some money to install it.
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