Thermostat temp suggestions
#16
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Year: 2015, 2012
Model: Grand Cherokee (WK2)
Engine: 3.6L
Mixing coolant has almost 0 effect on how well the system cools. It can cause problems with corrosion and sludge but that's about it.
Doing a proper flush may help the system some but odds are you have another cooling component that needs maintinence. At this age its a good idea to do a full refresh anyways.
Doing a proper flush may help the system some but odds are you have another cooling component that needs maintinence. At this age its a good idea to do a full refresh anyways.
It's not the coolant or the thermostat. We have already told the OP that his problems lie deeper. It seems to me the OP is in denial about this, and is looking for a band-aid solution to his problem.
Flush the engine and replace everything except the heater core. It's not all that expensive or hard to do. If the engine still overheats, it may be a cracked head and/or a blown head gasket.
#17
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Year: 1999
Model: Cherokee
Engine: 4.0L I6
You could pour beer or Gatorade in your system and it would cool just fine. If all the components were in good condition.
It's not the coolant or the thermostat. We have already told the OP that his problems lie deeper. It seems to me the OP is in denial about this, and is looking for a band-aid solution to his problem.
Flush the engine and replace everything except the heater core. It's not all that expensive or hard to do. If the engine still overheats, it may be a cracked head and/or a blown head gasket.
It's not the coolant or the thermostat. We have already told the OP that his problems lie deeper. It seems to me the OP is in denial about this, and is looking for a band-aid solution to his problem.
Flush the engine and replace everything except the heater core. It's not all that expensive or hard to do. If the engine still overheats, it may be a cracked head and/or a blown head gasket.
#18
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Year: 1989 Limited
Model: Cherokee(XJ)
Engine: I-6 4.0L AMC Renix
Thermostat temp suggestions
Originally Posted by Firestorm500
You could pour beer or Gatorade in your system and it would cool just fine. If all the components were in good condition.
It's not the coolant or the thermostat. We have already told the OP that his problems lie deeper. It seems to me the OP is in denial about this, and is looking for a band-aid solution to his problem.
Flush the engine and replace everything except the heater core. It's not all that expensive or hard to do. If the engine still overheats, it may be a cracked head and/or a blown head gasket.
It's not the coolant or the thermostat. We have already told the OP that his problems lie deeper. It seems to me the OP is in denial about this, and is looking for a band-aid solution to his problem.
Flush the engine and replace everything except the heater core. It's not all that expensive or hard to do. If the engine still overheats, it may be a cracked head and/or a blown head gasket.
#20
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Year: 1989 Limited
Model: Cherokee(XJ)
Engine: I-6 4.0L AMC Renix
Thermostat temp suggestions
Originally Posted by Firestorm500
"Sludge like mixture" could be a mixture of coolant and oil.
If the radiator has fluid in it it is being "used".
If the radiator has fluid in it it is being "used".
#21
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Year: 1994
Model: Cherokee
Engine: 4.0 HO
OP.
You need to go over everything in your cooling system.
Take it from me. PO did not replace everything necessary when he had a overheating issue,& now I am replacing the entire cooling system along with a head rebuild.
Review your entire system & replace as necessary.
Jeep comes stock with a 195* thermostat.
They also made a 180* extreme duty(towing) thermostat that is available.
Nothing wrong with going with the 180*, when u replace everything else.
You need to go over everything in your cooling system.
Take it from me. PO did not replace everything necessary when he had a overheating issue,& now I am replacing the entire cooling system along with a head rebuild.
Review your entire system & replace as necessary.
Jeep comes stock with a 195* thermostat.
They also made a 180* extreme duty(towing) thermostat that is available.
Nothing wrong with going with the 180*, when u replace everything else.
#22
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Year: 1989 Limited
Model: Cherokee(XJ)
Engine: I-6 4.0L AMC Renix
Thermostat temp suggestions
Originally Posted by madmanmarty
OP.
You need to go over everything in your cooling system.
Take it from me. PO did not replace everything necessary when he had a overheating issue,& now I am replacing the entire cooling system along with a head rebuild.
Review your entire system & replace as necessary.
Jeep comes stock with a 195* thermostat.
They also made a 180* extreme duty(towing) thermostat that is available.
Nothing wrong with going with the 180*, when u replace everything else.
You need to go over everything in your cooling system.
Take it from me. PO did not replace everything necessary when he had a overheating issue,& now I am replacing the entire cooling system along with a head rebuild.
Review your entire system & replace as necessary.
Jeep comes stock with a 195* thermostat.
They also made a 180* extreme duty(towing) thermostat that is available.
Nothing wrong with going with the 180*, when u replace everything else.
#24
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Year: 2001
Model: Cherokee (XJ)
Engine: 4.0L
I also live in LA but I live In Santa Clarita where last couple of weeks it was over 100 , I installed a Champion 2 row all aluminum Radiator I got from Jegs . even when it was over 100 stuck in traffic the engine still was running at 195 . also have a new fan clutch . hope this helps
#27
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Year: 2000
Model: Cherokee
Engine: 6 cylinder
And all of those parts were OEM Mopar.
Even upgraded to the NAPA HD fan clutch.
Still have rough engine hot idling before the efan finally kicks in.
I strongly suspect the elevated heat under the hood at prolonged hot idles is causing a precursor vapor locking condition at least with my 4.0.
My reasoning? When i manually turn on the efan, the engine settles down in a matter of a few seconds.
The efan flows cooler air right over and through the injectors, intake and exhaust manifolds.
Face it some of these 4.0s especially the later years like it or not run hot.
My suggestion to the OPer if all else fails and you've thrown all the parts and flushes you can think of at the cooling system, install a manual efan over ride switch.
#28
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Year: 1989 Limited
Model: Cherokee(XJ)
Engine: I-6 4.0L AMC Renix
I also live in LA but I live In Santa Clarita where last couple of weeks it was over 100 , I installed a Champion 2 row all aluminum Radiator I got from Jegs . even when it was over 100 stuck in traffic the engine still was running at 195 . also have a new fan clutch . hope this helps
lol yeah this is a pretty old thread. I still never flushed it. Ended up being my radiator that was clogged up but I didn't replace it until last September along with a new zj m-fan clutch because my lasy one was shot. I also had to replace the thermostat because that rusted shut because my Jeep did sit for so long. Only had a 180 in stock and I needed to get to class that next morning. This was last summer. Now I run at 180 unless I sit in traffic in the hot weather and blast the AC, then it will get up to 210. But I am going to revert it bac to a mopar 195 thermostat and stock fan clutch along with a new water pump because god only knows the state of mine because it is deffinitally over 8 years old. But perks of living in LA is that rust is only an issue if you let a car sit for years with stagnant coolant in the system. Oh wait. That happened to my xj... but I think it should run just fine with stock parts, but goood quality stock parts.
#29
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Year: 200
Model: Cherokee
Engine: 4.0L I6
#30