What is this hose for and why is dumping coolant?
Thread Starter
Seasoned Member
Joined: Jan 2011
Posts: 434
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From: NJ
Year: 2001
Model: Cherokee
Engine: 4.0 I6 Powertech
What is this hose for and why is dumping coolant?
Story goes coolant flush, right now its air locked and my heat sucks I just haven't had time to bleed it. But yesterday randomly this hose shot out antifreeze not that much though but enough for the coolant reservoir to go down. It has been a week since I have done the flush this if for a 2000 Jeep Cherokee I6. The hose isn't connected to anything it just goes down towards the LCA.
Old School CF Moderator
Joined: May 2010
Posts: 9,652
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From: Chattanooga
Year: 2001
Model: Cherokee
Engine: 4.0
Interesting. I dont recall seeing this on my jeep and I just replaced a ton of coolant hoses. May be some sort of overflow hose where it directs coolant away from certain things if the level rises. My galant has one...but not 100% on this instance.
Last edited by Xj88; Sep 25, 2011 at 07:39 PM.
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Thread Starter
Seasoned Member
Joined: Jan 2011
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From: NJ
Year: 2001
Model: Cherokee
Engine: 4.0 I6 Powertech
OK it only did it once for a sec I tink maybe it was because I overfilled the coolant reservoir a little over the full line when it was cold. My heater core doesn't smell or anything and I don't have a puddle in my passenger seat so I think I am ok.
CF Veteran
Joined: Feb 2010
Posts: 12,367
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From: Oroville, CA
Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
Keep an eye on it, anti-freeze coming from that drain means the heater core is leaking. Over filling the reservoir will not have anything to do with that drain, its only purpose is to let condinsation from the A/C evaporator to drain out of the HVAC case.
Thread Starter
Seasoned Member
Joined: Jan 2011
Posts: 434
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From: NJ
Year: 2001
Model: Cherokee
Engine: 4.0 I6 Powertech
If it is because the heater core is leaking I think I have air stuck in there like I said from not burping it. I will try bleeding it and see if it continues.
Senior Member
Joined: Nov 2009
Posts: 904
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From: Maine
Year: 1999 Sport
Model: Cherokee
Engine: I6
That is most definitely, without a question, your AC condensation drip hose. If you have coolant leaking from that line, it means your heater core is leaking in the heater box and running out of there. 100% no doubt about it, no other explanation. That is the ONLY reason that coolant would be spilling out of that line.
Last edited by bigvig; Sep 26, 2011 at 10:34 AM.
CF Veteran
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From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
x2^^^^^^^^ you dont burp open cooling systems
Thread Starter
Seasoned Member
Joined: Jan 2011
Posts: 434
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From: NJ
Year: 2001
Model: Cherokee
Engine: 4.0 I6 Powertech
Everyone keep saying that I don't have to burp it. I did it anyway, well it works a little better now. I think the heater core its just clogged because the bend doors are working fine. I will flush it tonight or tomorrow and post results I will be looking for fish scales. To Wally World for some Prestone.