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  #13  
Old 03-14-2012, 10:36 PM
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Re: Good radiator replacement

Just changed my radiator today. Took me the whole day to get it done. Removed the radiator together with the hydraulic cooling fan. Tried first to get the radiator out in between the condenser and the cooling fan shroud, but there was not enough space and also didnīt want to risk to damage the condensor or new radiator. The downside was that i also had to disconnect the power steering lines from the hydraulic cooling fan motor and lost most of the power steering fluid. But in this way, its quite easy to get the whole assy (radiator and cooling fan) out, remove the fan shroud and transmission cooling lines from the rad. and build it all over to the new rad. The lower transmission cooling connection to the rad was corroded in place and only after removing the whole assy, i was able to get it off. But with the whole assy out, its easy to remove all 4 bolts which holds the fan shroud to the rad and to reinstall it again. I put the transmission lines on the rad and the lower hose, before installing the whole assy in place. The clamp of the lower hose to the rad is quite difficult to access once the rad is in place, so you have to prealign it and fix it with the clamp before you install the rad. The transmission lines can be disconnected with the hoses and clamps close to the lower rad hose. Installing the tranny cooling lines on the new rad is easy, because they have a fixed place on the fan shroud where they pass through.
Luckily i still had a liter of power steering fluid at home, so could finish the job without having to go to the dealer. Also donīt forget to bleed the power steering system for air, because there will be a lot of it in there.
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  #14  
Old 03-15-2012, 09:41 AM
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Re: Good radiator replacement

Quote:
Originally Posted by Frango100 View Post
Just changed my radiator today. Took me the whole day to get it done. Removed the radiator together with the hydraulic cooling fan. Tried first to get the radiator out in between the condenser and the cooling fan shroud, but there was not enough space and also didnīt want to risk to damage the condensor or new radiator. The downside was that i also had to disconnect the power steering lines from the hydraulic cooling fan motor and lost most of the power steering fluid. But in this way, its quite easy to get the whole assy (radiator and cooling fan) out, remove the fan shroud and transmission cooling lines from the rad. and build it all over to the new rad. The lower transmission cooling connection to the rad was corroded in place and only after removing the whole assy, i was able to get it off. But with the whole assy out, its easy to remove all 4 bolts which holds the fan shroud to the rad and to reinstall it again. I put the transmission lines on the rad and the lower hose, before installing the whole assy in place. The clamp of the lower hose to the rad is quite difficult to access once the rad is in place, so you have to prealign it and fix it with the clamp before you install the rad. The transmission lines can be disconnected with the hoses and clamps close to the lower rad hose. Installing the tranny cooling lines on the new rad is easy, because they have a fixed place on the fan shroud where they pass through.
Luckily i still had a liter of power steering fluid at home, so could finish the job without having to go to the dealer. Also donīt forget to bleed the power steering system for air, because there will be a lot of it in there.
Thanks for the up date. I am expecting all the parts to be delivered today and hopefully will be replacing all next day off. It will be tough as I have not worked on a car for years. Or longer.
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  #15  
Old 03-15-2012, 09:54 AM
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Re: Good radiator replacement

Just throwing this out there....I hate the "constant tension" hose clamps Chrysler uses. I always buy new worm-drive stainless steel clamps to replace them whenever I know I'm going to be in there replacing anything. I like being able to feel how tight they are, and I like being able to remove them without them launching them across the garage because they slipped off my pliers.
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  #16  
Old 03-15-2012, 10:23 AM
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Re: Good radiator replacement

Glad to hear its all back together Frank! I remember how fun that job was,.. damn hydraulic fan....



Quote:
Originally Posted by TJXJWJ View Post
Just throwing this out there....I hate the "constant tension" hose clamps Chrysler uses. I always buy new worm-drive stainless steel clamps to replace them whenever I know I'm going to be in there replacing anything. I like being able to feel how tight they are, and I like being able to remove them without them launching them across the garage because they slipped off my pliers.
That is a good point, I don't like those constant tension clamps either. I used SS band clamps like you said when I replaced the radiator, but either they were cheap chit or 1 was defective but I had 1 get loose on me over the past year+ and lost all my coolant while driving down the highway a few weeks ago. I checked the other clamps too and found that 1 other was somewhat loose. I replaced all of them that day and will be keeping an eye on them at least every oil change from now on.
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  #17  
Old 03-15-2012, 01:19 PM
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Re: Good radiator replacement

I did re-use the constant tension clamps. Their clamping tension feeled ok (very firm) and at least you are sure to not overtighten and damage the hose. There is a special tool for these clamps, but just to buy it and use it once i also didnīt like. I used an adjustable plier and this worked out quite well, no flying clamps.

And to DrLocke, your case should be a little bit more easy, because you donīt have the hydraulic cooling fan. Most probably it still is easier to remove the whole radiator/fan assy and disassemble it on the floor.
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  #18  
Old 03-26-2012, 04:25 PM
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Re: Good radiator replacement

Well it looks like this Wednesday will be the day to R&R my radiator. I am sorta looking forward to the experience but lacking confidence on these modern vehicles. Last time I worked on my own vehicle was before smog. LOL
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  #19  
Old 03-26-2012, 05:40 PM
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Re: Good radiator replacement

Griffin Makes a All aluminum Stock Drop in Radiator for Both the 4.7 and 4.0L

STOCK 4.0L vs Griffin

Stock Rad is roughly $150 to $200 Griffin is $400 but you get 20x a better product.
http://www.jeepforum.com/forum/f310/...m-rad-1317187/
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  #20  
Old 03-30-2012, 09:47 PM
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Re: Good radiator replacement

Quote:
Originally Posted by xJoshxx View Post
Griffin Makes a All aluminum Stock Drop in Radiator for Both the 4.7 and 4.0L

STOCK 4.0L vs Griffin

Stock Rad is roughly $150 to $200 Griffin is $400 but you get 20x a better product.
http://www.jeepforum.com/forum/f310/...m-rad-1317187/
Thanks, xJoshxx. A little late but I appreciate your input.
I was looking for a replacement that I wouldn't have to replace again. I think the all aluminum radiator would have done that.
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  #21  
Old 03-30-2012, 11:08 PM
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Re: Good radiator replacement

How did you make out doc?
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OK, fine...I'll admit...some amber lamps are good, and necessary.
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  #22  
Old 04-01-2012, 09:07 AM
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Re: Good radiator replacement

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Originally Posted by cheapjeep View Post
How did you make out doc?
Thanks for asking.
So far, so good. Everything seems fine. I replaced the thermostate with a 180 degree unit and it seems to keep the engine cooler.
It does reach 210 degree mark if I have to sit at a light which it didn't do before the replacement. I shall keep my eye on the coolant and try to burp it as needed. But so far no real excitement as far as temp goes.
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  #23  
Old 04-01-2012, 10:05 AM
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Re: Good radiator replacement

Good idea. 4.0s are extremely difficult to get all the air out of. Of all the motors that's the one that really needed an air bleed screw.
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OK, fine...I'll admit...some amber lamps are good, and necessary.
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