Replacing AC Condenser/Trans Cooler 2007 - Jeep Commander Forums: Jeep Commander Forum
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post #1 of 11 (permalink) Old 07-26-2012, 07:32 AM Thread Starter
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Replacing AC Condenser/Trans Cooler 2007

Been searching this thread, but haven't found this completely yet. Found lot's of info about replacing lines, as well as adding an aftermarket trans cooler, so if there is already a thread on this, please direct me.
The bottom drivers side of the trans cooler is wet with fluid. From closer inspection, the power steering cooler is fine, the hoses have no cracks or leaks. It appears the issue is the trans cooler itself leaking, same as if you had a bad radiator. So here's my questions.
I have found a replacement online for 120.00 (the dealer wants 320.00 just for the part. Has anyone fully replaced one of these?
My main concern lies in the fact that the A/C condenser is part of this as well. What are the pitfalls of removing those lines? Correct me if I am wrong, but the A/C system is always under pressure correct? Will everything in the system just leak out as soon as the lines are cracked and just need to be refilled? What are the other pitfalls in this change if anyone else has attempted it.

Thanks in advance. Trying to make this XK limp through another couple years, even though it's pushing 180,000 miles.
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post #2 of 11 (permalink) Old 07-26-2012, 09:29 AM
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Im sort of confused which cooler you are refering to. Take a look at this picture and let me know which one is leaking.

Are you talking about the skinny back cooler that runs across the front or the large square one directly behind it.

As for the ac, yes it is under pressure. If you take the lines off it will leak out.








2007 4.7 Liter XK | Front OME MD Springs w/Superlift Preload Spacer | Rear 4" Superlift Springs | Bilstein 5125 Rear Shocks | JBA UCA's | Rusty's Rear Adjustable Track Bar | Black Rock 997 Wheels | Fred Goeske 1/4 Inch Wheel Spacers | 305/70R17 Goodyear Wrangler MT/R w/Kevlar | Airflow Snorkel | Flowmaster 40 Series Muffler | Superchips Flashpaq | Mopar Skids | 4xGuard Belly Guard | American Rebel Rear Diff Cover | Rear Powertrax No-Slip | Front E-Locker | Rear Heat/AC Delete
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post #3 of 11 (permalink) Old 07-26-2012, 10:04 AM
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I think I understand what your talking about now. The front skinny black one is the power steering cooler. The larger square one directly behind it is for both the ac and the transmission. The AC lines got into the top and the transmission lines go into the cooler about half way down. If you replace that entire cooler you would need to recharge your AC afterwards.




2007 4.7 Liter XK | Front OME MD Springs w/Superlift Preload Spacer | Rear 4" Superlift Springs | Bilstein 5125 Rear Shocks | JBA UCA's | Rusty's Rear Adjustable Track Bar | Black Rock 997 Wheels | Fred Goeske 1/4 Inch Wheel Spacers | 305/70R17 Goodyear Wrangler MT/R w/Kevlar | Airflow Snorkel | Flowmaster 40 Series Muffler | Superchips Flashpaq | Mopar Skids | 4xGuard Belly Guard | American Rebel Rear Diff Cover | Rear Powertrax No-Slip | Front E-Locker | Rear Heat/AC Delete
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post #4 of 11 (permalink) Old 07-26-2012, 02:08 PM Thread Starter
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Yes, it's definitely the larger one. The skinny one in front is the power steering, I traced those lines, so I am sure of that. Have you ever replaced the ac/trans cooler? Just didn't want to run into any issues that someone else may have already faced, so figured I would ask to see if anyone has tackled this yet.
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post #5 of 11 (permalink) Old 07-26-2012, 02:15 PM
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I havent had to replace mine on the XK yet but I dont think it would be hard at all. I've had everything off the front of the XK several times time in the past few years to spray all the mud off of the radiator and ac condensor/tranny cooler. To the point where all I would have to do is unhook the lines and swap it right out. I would recommend getting the ac vac'd out of the system first before you pull the lines off the condensor. And when you pull the tranny lines make sure you have something under it to catch the fluid along with a couple qts of new fluid on had to refill what you lost.




2007 4.7 Liter XK | Front OME MD Springs w/Superlift Preload Spacer | Rear 4" Superlift Springs | Bilstein 5125 Rear Shocks | JBA UCA's | Rusty's Rear Adjustable Track Bar | Black Rock 997 Wheels | Fred Goeske 1/4 Inch Wheel Spacers | 305/70R17 Goodyear Wrangler MT/R w/Kevlar | Airflow Snorkel | Flowmaster 40 Series Muffler | Superchips Flashpaq | Mopar Skids | 4xGuard Belly Guard | American Rebel Rear Diff Cover | Rear Powertrax No-Slip | Front E-Locker | Rear Heat/AC Delete
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post #6 of 11 (permalink) Old 07-26-2012, 02:44 PM Thread Starter
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Since the tranny doesn't have a dipstick, I would likely just try to limp it to the dealer a few miles away for a top off, to make sure it's where it needs to be.
Never heard of the a/c vac? Is this something a place that could service a/c would be able to do?
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post #7 of 11 (permalink) Old 07-26-2012, 02:49 PM
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Quote:
Originally Posted by jonzilla99 View Post
Since the tranny doesn't have a dipstick, I would likely just try to limp it to the dealer a few miles away for a top off, to make sure it's where it needs to be.
Never heard of the a/c vac? Is this something a place that could service a/c would be able to do?

Oh I didnt realize you have the 3.7 liter. My 4.7 has a tranny dipstick.

As for the A/C all that means is they hook it up to a machine and it sucks all the old oil and refrigerant (freon) out. Any shop that does ac service should have this machine.




2007 4.7 Liter XK | Front OME MD Springs w/Superlift Preload Spacer | Rear 4" Superlift Springs | Bilstein 5125 Rear Shocks | JBA UCA's | Rusty's Rear Adjustable Track Bar | Black Rock 997 Wheels | Fred Goeske 1/4 Inch Wheel Spacers | 305/70R17 Goodyear Wrangler MT/R w/Kevlar | Airflow Snorkel | Flowmaster 40 Series Muffler | Superchips Flashpaq | Mopar Skids | 4xGuard Belly Guard | American Rebel Rear Diff Cover | Rear Powertrax No-Slip | Front E-Locker | Rear Heat/AC Delete
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post #8 of 11 (permalink) Old 07-29-2012, 07:49 PM Thread Starter
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Ordering the part tonight, will tackle this next week. Will post any issues if I come across any. Thanks for the info 07JeepXK
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post #9 of 11 (permalink) Old 07-29-2012, 07:56 PM
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Not a problem. I really dont think its a hard fix honestly. What are your plans for the AC? Are you going to take it somewhere so they can vaccum out the lines?




2007 4.7 Liter XK | Front OME MD Springs w/Superlift Preload Spacer | Rear 4" Superlift Springs | Bilstein 5125 Rear Shocks | JBA UCA's | Rusty's Rear Adjustable Track Bar | Black Rock 997 Wheels | Fred Goeske 1/4 Inch Wheel Spacers | 305/70R17 Goodyear Wrangler MT/R w/Kevlar | Airflow Snorkel | Flowmaster 40 Series Muffler | Superchips Flashpaq | Mopar Skids | 4xGuard Belly Guard | American Rebel Rear Diff Cover | Rear Powertrax No-Slip | Front E-Locker | Rear Heat/AC Delete
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post #10 of 11 (permalink) Old 05-12-2016, 08:13 PM
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2008 commander a/c condenser

Does anyone know if you get a small hole at bottom of a/c condenser and the freon is leaking out
is there anyway to just plug the hole with solder or some type of repair kit?
or do you just have to replace the entire condenser?
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