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Discussion Starter #1 (Edited)
So after my HVAC blowing cool air when set to heat I checked the coolant level and it was very low. I assumed previous owner neglect so I topped it off after adding 4liters. Two days later i checked it again and found it to be low again so I added another 2.5liters. Today I checked the level again and it was freakin low.....so after some investigating I found the leak. It appears to be a T connection on one of the heater hoses on the passenger side by the firewall. Sorry for the poor pics. Can I use a generic T with hose clamps or do I need a Chrysler T??
 

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They used generic fittings to fix mine, not sure how they removed them.
Thinking this over, I remember they said they cut mine out and replaced with generic fittings which they said was hard to do because of the space to work. Just checked invoice, thought maybe there would be a part number for tees, but there is not. They charged $50 parts and $150 labor. My XK was also leaking at thermostat housing and had a bad cap that was leaking.
 

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So after my HVAC blowing cool air when set to heat I checked the coolant level and it was very low. I assumed previous owner neglect so I topped it off after adding 4liters. Two days later i checked it again and found it to be low again so I added another 2.5liters. Today I checked the level again and it was freakin low.....so after some investigating I found the leak. It appears to be a T connection on one of the heater hoses on the passenger side by the firewall. Sorry for the poor pics. Can I use a generic T with hose clamps or do I need a Chrysler T??
Here is another thread on the same subject - it might give you a little more insight;

http://www.jeepcommander.com/forums/23-regular-service-maintenance/58921-coolant-leek-easy-fix.html

From that thread they recommend this as the link for the replacement part;

https://www.carid.com/2006-jeep-comm...-21615313.html

EDIT: This just takes you to CarID's website to 2006 Jeep Commander AC & Heating parts; I went there and tried to narrow down the search for you;

https://www.carid.com/heater-hoses-pipes.html
 

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I made this repair by cutting out the tee... costed $7.00 and about 1 1/2 hrs labor.
Disconnected the clamp going into the heater core (firewall) and then the clamp at near the radiator, then cut the hose flush at the bottom of the tee. Took the hose with the tee attached on the work bench and cut the swagged tee apart to remove the to remaining hoses. Picked up a 3/4' plastiic ribbed high temp tee from Advance and a few stainless hose clamps and reinstalled. It was tedious but no big deal. To prevent the coolant from flowing from where i pulled the hoses from i attached a short piece of 3/4 hose and extended up above the radiator, the hose going to the rear heater i plugged with a piece of paper towel. All good. Took about an hour and half.
I do alot of this, repair instead of replace, and have to start taking pics and posting them. I just never think about it at the time.
 
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