heater control valve
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,577
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
i have a question regarding eliminating it, does the orientation of the hoses to the core matter once the valve is removed? everything ive read is thermostat to lower hose and water pump to upper hose, however 97+ came opposite, i have a 95, and just cant figure out how it needs to be oriented
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::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,577
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
i have a question regarding eliminating it, does the orientation of the hoses to the core matter once the valve is removed? everything ive read is thermostat to lower hose and water pump to upper hose, however 97+ came opposite, i have a 95, and just cant figure out how it needs to be oriented
CF Veteran
Joined: Jan 2015
Posts: 1,381
Likes: 3
From: Southern Maryland
Year: 1991
Model: Cherokee
Engine: 1999 4.0L
i have a question regarding eliminating it, does the orientation of the hoses to the core matter once the valve is removed? everything ive read is thermostat to lower hose and water pump to upper hose, however 97+ came opposite, i have a 95, and just cant figure out how it needs to be oriented
CF Veteran
Joined: Jan 2015
Posts: 1,508
Likes: 5
From: Oregon Coast
Year: 1999
Model: Cherokee
Engine: 4.0L I6
Seasoned Member
Joined: Apr 2015
Posts: 375
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From: Denver, Colorado
Year: 2000
Model: Cherokee
Engine: 4.0
Senior Member


Joined: May 2010
Posts: 544
Likes: 252
From: Newmarket, Ontario
Year: 1989
Model: Cherokee (XJ)
Engine: 4.0 L
I have a '95 and it has a heater control valve. If I remove it and install '97+ hoses so that coolant constantly flows through the heater core is the heat simply regulated by the dashboard controls? I'm all for eliminating useless parts but this sounds too easy and makes me wonder why they were installed in the first place.
I take it that the inside diameters of the '97+ hoses are compatible with the '95 components (heater core, water pump, etc.).
I take it that the inside diameters of the '97+ hoses are compatible with the '95 components (heater core, water pump, etc.).
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,577
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
I have a '95 and it has a heater control valve. If I remove it and install '97+ hoses so that coolant constantly flows through the heater core is the heat simply regulated by the dashboard controls? I'm all for eliminating useless parts but this sounds too easy and makes me wonder why they were installed in the first place.
I take it that the inside diameters of the '97+ hoses are compatible with the '95 components (heater core, water pump, etc.).
I take it that the inside diameters of the '97+ hoses are compatible with the '95 components (heater core, water pump, etc.).
This is SO easy. Take yours off. Put the new ones on. They only go on one way.
Senior Member


Joined: May 2010
Posts: 544
Likes: 252
From: Newmarket, Ontario
Year: 1989
Model: Cherokee (XJ)
Engine: 4.0 L


