My Cherokee says it runs WAY under 210 degrees
01-21-2015, 06:46 AM
#17
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Year: 1990
Model: Cherokee (XJ)
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Ditch the valve!!! The answer is staring you in the face.
01-21-2015, 06:53 AM
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Year: 1990
Model: Cherokee (XJ)
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How can you see steam through a rubber hose?
01-21-2015, 09:51 AM
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01-21-2015, 12:03 PM
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01-28-2015, 08:25 AM
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When verifying actual temps where are you taking readings? Thermostat housing? Temp sender at the back of the cylinder head? I think I have a faulty gauge and have an IR thermometer but am not sure where I should be taking readings. There is a large discrepancy between the temp on the thermostat housing vs the cylinder head. What readings are normal? I don't mean to hi-jack this thread just thought it might be helpful for myself and others. Thanks in advance.
01-28-2015, 09:09 AM
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Year: 1987
Model: Cherokee
Engine: 4.0
When verifying actual temps where are you taking readings? Thermostat housing? Temp sender at the back of the cylinder head? I think I have a faulty gauge and have an IR thermometer but am not sure where I should be taking readings. There is a large discrepancy between the temp on the thermostat housing vs the cylinder head. What readings are normal? I don't mean to hi-jack this thread just thought it might be helpful for myself and others. Thanks in advance.
01-28-2015, 09:47 AM
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01-28-2015, 10:13 AM
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Year: 1991
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Yeah I would point an IR thermometer at the thermostat housing and compare it to the gauge. The gauge sender at the back of the head is a really weak design and fails easily, the post gets wobbly and loses contact which interferes with the resistor.
If your heater hoses are hot on the supply side and cool on the return then it sounds like its working--cold air from outside is blowing over the core and transferring heat properly. Dunno why it wouldn't be working inside the cab.
Verify temperature at the thermostat housing first, see if its actually working right
If your heater hoses are hot on the supply side and cool on the return then it sounds like its working--cold air from outside is blowing over the core and transferring heat properly. Dunno why it wouldn't be working inside the cab.
Verify temperature at the thermostat housing first, see if its actually working right
01-28-2015, 10:22 AM
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Yeah I would point an IR thermometer at the thermostat housing and compare it to the gauge. The gauge sender at the back of the head is a really weak design and fails easily, the post gets wobbly and loses contact which interferes with the resistor.
If your heater hoses are hot on the supply side and cool on the return then it sounds like its working--cold air from outside is blowing over the core and transferring heat properly. Dunno why it wouldn't be working inside the cab.
Verify temperature at the thermostat housing first, see if its actually working right
If your heater hoses are hot on the supply side and cool on the return then it sounds like its working--cold air from outside is blowing over the core and transferring heat properly. Dunno why it wouldn't be working inside the cab.
Verify temperature at the thermostat housing first, see if its actually working right