Thermostat different temp range?!
#1
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Year: 1989
Model: Cherokee
Engine: 4.0L HO
Thermostat different temp range?!
I just pulled out the thermostat on my 89 and at the bottom it says 160F and my new one is 195F Do I need the 195F or the 160F thermostat if the old one (160F) is bad?
#2
CF Veteran
Stock is 190 to 198 I think it is.
I typically use a 180 without issues.
The hotter thermostats are to make the engine burn cleaner to pass EPA regulations.
I typically use a 180 without issues.
The hotter thermostats are to make the engine burn cleaner to pass EPA regulations.
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Year: 1989
Model: Cherokee
Engine: 4.0L HO
Damn it idk what could be cuasing the overheating then. I flushed the radiator. Do you have a picture of how the thermostat is suppose to be placed in the engine?
#4
CF Veteran
the pointed end points to the radiator.
Have you cleaned the radiator externally?
I use to use some stuff called Black Max for cleaning A/C condensors but since its hard to find. I would suggest spraying it down with something like Easy Off Oven Cleaner and then wash it off and flush all the dirt with a hose.
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Year: 1994
Model: Cherokee
Engine: I6 4.0L HO
What is your temp gauge reading when you notice the rig start to overheat. Im having a similar problem with coolant boiling out. Did flushing your radiator help any?
#6
Caracticus Potts The Mod
The engine will reach the same temp it normally runs at with a 180 or a 195 t-stat , the 195 will bring it to operating temp faster by restricting flow that is all.
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Caracticus Potts The Mod
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Year: 1994
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#11
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Year: 1989
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No before idk about new one I had to drain some of the new radiator fluid out so I am getting more tomorrow then trying it.
When I flushed the radiator since there was some water in the block he said just get full concentrate and since I don't know how much water was left in idk how much to mix in so I just added the coolant without adding more water. Could that be the cause too?
When I flushed the radiator since there was some water in the block he said just get full concentrate and since I don't know how much water was left in idk how much to mix in so I just added the coolant without adding more water. Could that be the cause too?
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Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
Too much coolant can cause the engine to run hotter, water absorbs heat much faster than the coolant, but you need the anti-rust and lubricating additives in the coolant keep the system alive longer. A 70% water to 30%coolant ratio works great depending on where you live.
Last edited by Bustedback; 09-17-2010 at 11:10 AM.
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Year: 1998
Model: Cherokee
Engine: 4.0L HO
The XJ cooling system holds about 3 gals. When the system is flushed and drained at the water pump, about 1 gal of water remains (unless u drain the block). When refilling the cooling system, add 1 gal straight antifreeze/coolant 1st (presuming block is not drained), then fill it up/top it off with 50/50 mixed coolant/water.