Heater Valve Elimination Note
#1
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Year: 1996
Model: Cherokee (XJ)
Engine: 242 cui
Heater Valve Elimination Note
Note: On 1996 and earlier XJ, when you remove the spider of hoses and pneumatically operated heater valve, you have full time coolant flowing through the heater core.
Even if the heater core fails.
Looking into blocking off the hoses, or replacing the original stuff to turn off the flow.
Even if the heater core fails.
Looking into blocking off the hoses, or replacing the original stuff to turn off the flow.
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#3
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Year: 1988
Model: Cherokee (XJ)
Engine: 4.0L
Like Lawson says, the heater valve doesn't completely shut off flow to the core, just diverts most of it.
Are you wanting to shut off all the flow? Is your core leaking?
You can simply connect the 2 hoses before the valve together (loopback). You'll need an adapter since they are 2 different sizes.
I've seen where folks have plumbed a shut off valve (one of the 1/4 turn ball valves) into each hose.
Are you wanting to shut off all the flow? Is your core leaking?
You can simply connect the 2 hoses before the valve together (loopback). You'll need an adapter since they are 2 different sizes.
I've seen where folks have plumbed a shut off valve (one of the 1/4 turn ball valves) into each hose.
#4
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Year: 1996
Model: Cherokee (XJ)
Engine: 242 cui
Like Lawson says, the heater valve doesn't completely shut off flow to the core, just diverts most of it.
Are you wanting to shut off all the flow? Is your core leaking?
You can simply connect the 2 hoses before the valve together (loopback). You'll need an adapter since they are 2 different sizes.
I've seen where folks have plumbed a shut off valve (one of the 1/4 turn ball valves) into each hose.
Are you wanting to shut off all the flow? Is your core leaking?
You can simply connect the 2 hoses before the valve together (loopback). You'll need an adapter since they are 2 different sizes.
I've seen where folks have plumbed a shut off valve (one of the 1/4 turn ball valves) into each hose.
#5
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Not a good idea to bypass. The coolant in the heater core is then stagnant and tends to corrode and clog.
Are you worried about when your heater core may fail?
Are you worried about when your heater core may fail?
#7
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Oh, okay. Just disconnect the hoses and plug them together with a fitting.
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