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Cooling part ID
- Thread starter Bdiddy11
- Start date
- Location
- on the beach in Ocean View, VA
or, as crotchety old people from OryGun will refer to it:
coolant control valve
coolant control valve
ParadiseXJ
NAXJA Forum User
- Location
- Paradise, CA 95969
or, as crotchety old people from OryGun will refer to it:
coolant control valve
I think he means you Joe...just by the description.
...not that you'r originally from OryGun.
joe_peters
NAXJA Forum User
- Location
- Grants Pass, OryGun
Dang, can't turn my back for one minute!
el_roy1985
NAXJA Forum User
- Location
- Bismarck, ND
I was flushing my coolant the other day and broke that piece while I was trying to disconnect it. So instead of spending the 22 bucks on the replacement, I just put to splices in and called it a day. Only cost me five dollars and some change. Not sure why they have that thing there, I don't think the newer Jeeps even bothered with it.
cruiser54
NAXJA Forum User
- Location
- Prescott, Az
You don't need it. I've eliminated a few of them will no ill effects.
- Location
- Maurertown,Va.
Run hoses direct to heater core. Be sure to plug vacuum line that went to the valve.
austinaubinoe
NAXJA Forum User
- Location
- Montgomery County, MD
Yeah I was gonna say, I dont have that! So does my 2000 have coolant flowing through the heater core all the time??
Does this valve have something to do with the "crank the heat up to keep from overheating" trick on older cars?
- Location
- Maurertown,Va.
IIRC the internal design of the heater/AC air box was changed in the 97/98> models.Thus the need to control the coolant was eliminated.
RichP
NAXJA Forum User
- Location
- Effort, Pa
I remember someone replaced one from the parts store and the replacement was metal not plastic. I don't think it was that pricey either, ~$20 or so.
Part 1, yes you do. However the blend door blocks off any air flow through the core thus keeping most of the heat in the box.
Part 2, I don't think that passing hot coolant through the core alone would do anything to help the coolant temp if it's "trapped" in a small box. It's passing cooler air through the hot core with the fan on that will help carry off the heat. This would work with or without a heater valve.
FYI: On my Renix rig, the heater valve defaults to open if it looses vacuum allowing coolant to flow through the core. For some reason the vac line is clogged so the valve is always open. My AC still manages to blow @ 40F on a
80-85* day and just about 50 when it's nearly 100 out.
