What is this part called?
11-23-2014, 07:23 AM
#1
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Year: 1994
Model: Grand Cherokee
Engine: v8
What is this part called?
The "mixing valve" that goes to the heater core? Under the hood, connected to the heater hoses?
Previous owner fixed a "leak in the heater core" by disconnecting and tossing the valve, and isolating the core.
Would like to not wear gloves on the way to work, but don't know what the part is called.
Previous owner fixed a "leak in the heater core" by disconnecting and tossing the valve, and isolating the core.
Would like to not wear gloves on the way to work, but don't know what the part is called.
11-23-2014, 07:48 AM
#4
Beach Bum
Should not need the HCV. Many of us remove them anyway since they are known to become brittle and break, just plug the vacuum line. Chrysler discontinued the HCV in the 1997 XJ.
The heater core can be plumbed directly. But if it drips fluid you will be breathing the fumes from coolant. If it leaks than fluid can pool in the heater box and/or on passenger floorpan.
The heater core can be plumbed directly. But if it drips fluid you will be breathing the fumes from coolant. If it leaks than fluid can pool in the heater box and/or on passenger floorpan.
11-23-2014, 08:07 AM
#5
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Year: 1994
Model: Grand Cherokee
Engine: v8
I thought it would heat up the car all the time if the coolant circulated through the heater core, no?
I will give it a whirl, thanks!
As far as it "leaking" all my other jeeps all have condensation issues when the drain line gets plugged. The issue as described to me mirrored this. Regardless, if I need to replace the core, I will.
Thanks again.
If it stops raining, I will jump on this today and make splices out of PVC or copper pipe (whichever I have
)
I will give it a whirl, thanks!
As far as it "leaking" all my other jeeps all have condensation issues when the drain line gets plugged. The issue as described to me mirrored this. Regardless, if I need to replace the core, I will.
Thanks again.
If it stops raining, I will jump on this today and make splices out of PVC or copper pipe (whichever I have
)
11-23-2014, 08:19 AM
#6
Beach Bum
I thought it would heat up the car all the time if the coolant circulated through the heater core, no?
I will give it a whirl, thanks!
As far as it "leaking" all my other jeeps all have condensation issues when the drain line gets plugged. The issue as described to me mirrored this. Regardless, if I need to replace the core, I will.
Thanks again.
If it stops raining, I will jump on this today and make splices out of PVC or copper pipe (whichever I have )
I will give it a whirl, thanks!
As far as it "leaking" all my other jeeps all have condensation issues when the drain line gets plugged. The issue as described to me mirrored this. Regardless, if I need to replace the core, I will.
Thanks again.
If it stops raining, I will jump on this today and make splices out of PVC or copper pipe (whichever I have
)Can PVC handle the underhood temps?
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11-23-2014, 09:58 AM
#9
Beach Bum
Here is a current thread discussing the HCV and it's uselessness.
https://www.cherokeeforum.com/f2/hea...0/#post2978069
https://www.cherokeeforum.com/f2/hea...0/#post2978069
11-23-2014, 10:41 AM
#10
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Year: 1994
Model: Grand Cherokee
Engine: v8
Great info!
Seems settled definitively. Thanks again.
ETA: 1/2'' copper tube, 2 hose clamps and I have heat.
Didn't leak out of the core, at least for now. Time will tell though.
Seems settled definitively. Thanks again.
ETA: 1/2'' copper tube, 2 hose clamps and I have heat.
Didn't leak out of the core, at least for now. Time will tell though.
Last edited by rangermonroe; 11-23-2014 at 12:10 PM.
11-23-2014, 06:37 PM
#11
Old fart with a wrench
I'd like to make a suggestion. Double clamp that copper pipe or slightly flare the ends. The system pressure will blow the hose off the copper if you don't have a bump on the end. Ask me how I know.
Why not just run long hoses? The ones on my WJ are about 4 feet long.
Why not just run long hoses? The ones on my WJ are about 4 feet long.
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