Radiator Replacement vs Heater Core - JeepForum.com
 
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post #1 of 13 Old 07-05-2013, 08:58 PM Thread Starter
filipm
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Radiator Replacement vs Heater Core

So I just finished replacing my heater core and a/c evap about 2 weeks ago and now developed a leak from the radiator. Checked all the hoses and clamps and they're bone dry only dripping from the bottom of the radiator.

I've found a # of good posts here about a radiator replacement:
http://www.jeepforum.com/forum/f310/...w-pics-530365/

http://www.jeepforum.com/forum/f310/...ement-1445877/

Few questions. I have the V8 with the hydraulic fan. My goal is to try to replace the radiator without removing the fan assembly or the a/c condenser. From reading a few looks like it's possible just a pain. Just wondering how much more difficult this would be than the heater core debacle I just went through.????


Fil
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post #2 of 13 Old 07-06-2013, 04:31 PM
Double E
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Keep in mind that I don't have the hydraulic fan assembly but if you already did the heater core and did your reading as indicated, I think you're good.

Be sure to disconnect the fog light wires before the bumper is removed...

2000 Laredo 4.7L Selec-Trac. 177K miles, Leather, 245 tires, tow package, crappy CD changer, full size spare, roof cross-rails & sunroof.
Changes & fixes: Rear Addco sway bar & greasble bushings, upgraded headlights, upgraded tail lights, new hood struts (replaced 2X), new rear hatchglass struts, new radiator (replaced 3X), new oil pressure sending unit (replaced 4X), 2 new speed sensors, 2 new door lock actuators, new ignition key cylinder, chrome front tow hooks, Mobil 1 Synthetic 5/30, Purolator Pure One oil filter, EBC slotted & dimpled rotors, EBC Greenstuff pads, new front shocks (replaced 3X), new rear shocks (replaced 2X), new IRO steering stabilizer, new timing chain cover, new water pump, thermostat, new thermostat housing, new high pressure power steering hose, Michelin-X radials, new sunroof assembly, new single-piece lug nuts, new exhaust manifold studs & gasket on driver's side, new Durango alternator. Jeepforum.com sticker, Visit cobaltboatsforum.com when you can!
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post #3 of 13 Old 07-06-2013, 05:52 PM
coloradowjowner
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I changed mine in about 4 hours give or take. If you have some help lifting the radiator out it would be nice since the hydraulic fan will still be attached to it and it is rather heavy and awkward. But it is rather straight forward.
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post #4 of 13 Old 07-06-2013, 05:54 PM
coloradowjowner
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The ac condenser will stay behind without disconnecting or evacuating the refrigerant. Just be careful not to damage the fins.
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post #5 of 13 Old 07-06-2013, 07:30 PM
Jer-Bear
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You do NOT have to remove the bumper or even grill for heavens sake... I've done a radiator job TWICE and never had to do that. Just take out the 4 bolts holding the radiator onto the fan and with some adjustment it should come out. Two people would be best to help move stuff out of the way. Be sure not to damage the rows on the new one putting it in.

/ 2002 WJ 4.7 H.O. / Flowmaster 50 SUV / Magnaflow Cats / Rocking that 2WD! /
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post #6 of 13 Old 07-06-2013, 09:52 PM Thread Starter
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Ended up getting a quote and an appt at a local shop. They want about $600 all said and done for the rad, hoses, coolant. Napa parts is less than $250 all in.

Jer-Bear thanks for the info, I'll take a look tomorrow AM and reevaluate. So I'm thinking the 2 trans lines, 2 mounting bolts through the grill and the 4 bolts on the fan housing.

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post #7 of 13 Old 07-06-2013, 10:02 PM
coloradowjowner
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Just make sure you pick up some MOPAR approved power steering fluid. And maybe a quart or two of transmission fluid.

My new radiator was purchased at autozone, I think it was $120ish. It comes with a warranty also.

And yes to remove the bumper is not necessary.
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post #8 of 13 Old 07-06-2013, 10:06 PM
Jer-Bear
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Also, "Mopar approved power steering fluid" is any fluid that is for Chrysler 5931. O'Reilly's sells it by the quart.

/ 2002 WJ 4.7 H.O. / Flowmaster 50 SUV / Magnaflow Cats / Rocking that 2WD! /
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post #9 of 13 Old 07-06-2013, 10:18 PM Thread Starter
filipm
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I already have a quart or so of each. Wouldn't I only need the trans fluid since not removing the fan shroud assembly?

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post #10 of 13 Old 07-06-2013, 10:34 PM
coloradowjowner
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In both my 02's 4.0 & 4.7 the main radiator shares a section or core with the transmission, so I believe the transmission radiator is built in to the main or coolant radiator.
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post #11 of 13 Old 07-06-2013, 10:35 PM
coloradowjowner
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Quote:
Originally Posted by Jer-Bear
Also, "Mopar approved power steering fluid" is any fluid that is for Chrysler 5931. O'Reilly's sells it by the quart.
Yes thank you for the clarification.
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post #12 of 13 Old 07-06-2013, 10:39 PM
coloradowjowner
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Quote:
Originally Posted by filipm
I already have a quart or so of each. Wouldn't I only need the trans fluid since not removing the fan shroud assembly?
Unless you find another way of removing the radiator. The hydraulic fan and shroud will be removed when changing the radiator. You will have to disconnect the hydraulic lines from the fan to the power steering pump. Hence the reason for the need of power steering fluid.
IMHO removing the entire radiator, shroud, and hydraulic fan seemed to be the simplest and easiest way to complete my repair.
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post #13 of 13 Old 07-06-2013, 10:45 PM
Jer-Bear
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Quote:
Originally Posted by coloradowjowner View Post

Unless you find another way of removing the radiator. The hydraulic fan and shroud will be removed when changing the radiator. You will have to disconnect the hydraulic lines from the fan to the power steering pump. Hence the reason for the need of power steering fluid.
IMHO removing the entire radiator, shroud, and hydraulic fan seemed to be the simplest and easiest way to complete my repair.
I agree. It makes it easiest, but if you're rushing it takes forever. And when I did mine, I still to this day can't get my high pressure line to seal up. I still have a small leak.

/ 2002 WJ 4.7 H.O. / Flowmaster 50 SUV / Magnaflow Cats / Rocking that 2WD! /
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