1998 xj with a 1996 heater control valve

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12-01-2020, 12:42 AM

#16

awg

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Join Date: Mar 2016

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Year: 96

Model: Cherokee (XJ)

Engine: 4.0

Quote:

Originally Posted by PatHenry

I suspect the failures are due to lower quality parts rather than the design. By all logic and reason, the stagnant coolant all summer is worse for HC than the 97+ design.

I'll be entering my 3rd winter with the HCV deletion on my 95 (340k on the body and presumably the HC) and so far so good.

just a few general questions about the heat valve system.

I have a 3x '96 all with the valve

if the later models do not have it, does that mean coolant flows thru the heater core all the time ?

A fellow '96 guy has over heating problems

I have found one way to "temporarily" bring engine temp down (in any vehicle) is to have water flow through the heater core, (with fan on full blast for best results)

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12-01-2020, 07:18 AM

#17

BruceB

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Join Date: Jan 2014

Location: Eustis, Florida

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Year: 1996

Model: Cherokee (XJ)

Engine: 4.0

First question came to mind is your title. Does your vin# match to title? Is it "branded" , as in rebuilt or previously reported totalled. Next is to check your vin # for the 10th digit to verify the year, it should be a "w" if it is a 1998, if it is a "t" it is a 1996. Make sure you check the dash, doors and fenders for matching vin #'s.

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12-03-2020, 12:09 AM

#18

BlueRidgeMark

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Year: 1998 Classic (I'll get it running soon....) and 02 Grand

Model: Cherokee (XJ)

Engine: 4.0

Quote:

Originally Posted by awg

if the later models do not have it, does that mean coolant flows thru the heater core all the time ?

That is correct. As long as your blend door is operating correctly, it does not bleed heat into the cabin. No problem in Phoenix weather according to several members.