stupid issues????
madchildz
08-22-2005, 12:29 AM
this might sound pretty dumb but im trying to figure out what the hell is wrong with my jeep.
The two major problems with my jeep are that it over heats like crazy, and that the trannny is all messed up. So what i want to know is, with the tranny being messed up, could that have anything to do with the jeep overheating.
The two major problems with my jeep are that it over heats like crazy, and that the trannny is all messed up. So what i want to know is, with the tranny being messed up, could that have anything to do with the jeep overheating.
SteveB05
08-22-2005, 02:44 AM
Not likely. If your trans is placing a lot of drag on the engine, that could cause it to get hot, and if that is the case, your trans fluid may be really hot, which runs through a cooler in the radiator...but those would have to be really extreme issues...to the point of being undrivable.
Mines69Olds
08-25-2005, 11:39 AM
I think it's time for you to check your trans fluid. Check to see if it is burnt (smell, color). It is possible that the radiator internals have broken down and mixed everything but I've only seen that once. You could also check your radiator fluid to make sure everything is right. But most likely it is the transmission.
MagicRat
08-25-2005, 10:31 PM
this might sound pretty dumb but im trying to figure out what the hell is wrong with my jeep.
The two major problems with my jeep are that it over heats like crazy, and that the trannny is all messed up. So what i want to know is, with the tranny being messed up, could that have anything to do with the jeep overheating.
3 things.
1. It really really helps to post the make, model and engine size of the Jeep.
2. 'Messed up' is not quite a useful description of the problems. Nore detail about the symptoms is very helpful. However, I have found about half the transmission performance problems are related to low fluid level or a need for a fluid and filter change.
3. A very good 'overheating' thread was listed about 10 threads below yours. The search engine is your friend. However, here is the best post there:
(This is from another forum, but very useful)
Ok...there seem to be too many threads with "my xj is overheating" or "yet another overheating thread" or "it only overheats when..." and I am going to try to answer them all and maybe we can get this to become a sticky or maybe posted somewhere.
All cherokees from the factory have a cooling system which is designed to remove heat from the engine and transfer it away. Coolant being pumped by a water pump flows through cooling jackets/passages in the head and block of the engine. It flows around exhaust and intake ports and around the cylinders. From there it goes to the radiator which had hundreds of small fins to increase surface area and that allows as much air as possible to take heat away from the coolant and the cycle repeats istelf over and over.
Chrysler opted for a mechanical clutch style cooling fan to draw air over the radiator to cool at idle and slow speeds. Some models depending on options also have an electric fan for optional A/C or towing package which turns on with a/c (on 2000 and 2001 xjs it turns on with a/c only when pressure in the lines goes past 300 psi) or when coolant temperature exceeds between 218-224 degrees F.
When working correctly and all parts are maintained, this setup works great.
Here are some reasons your cherokee would overheat (240+f) at idle but not at 30+mph:
Fan clutch worn out
Old coolant
Aux. electric fan not turning on
blocked radiator or coolant passages
Low fluid level
Low engine oil level
Water pump impeller wearing causing low flow at slow speeds
clogged radiator fins or air blockage to radiator
Damaged fan shroud
Retards who upgrade engines and leave stock cooling system
If your cherokee overheats on the highway 240+F:
Clogged passages
Stuck closed thermostat
Towing a heavy load up a grade on a hot day w or w/o ac on (temp. overheat)
contaminated coolant
bad waterpump
clogged radiator fins
blocked airflow
brakes sticking/ebrake on
If you overheat on the highway and NOT at slower speeds / idle:
partial blocked passages not flowing enough for highway engine demand but flows enough at idle.
Radiator blocked or fins clogged for same reason above
Brakes sticking
Overloading
Also, xj's have tight engine compartments and they will run 220ish in the summer with a/c on or off and that is NORMAL for xj's. Other vehicles have different coolant temps that they are designed to run well at so dont do too much comparing such as " my Taco runs 210 even though I beat it half way to hell) Thats great...I only like taco from taco bell and the one she gives me...but anyway
Another thing to note...fan clutches run about 40bux new depending where you go. With personal issues there is no TRUE way to test a clutch because they fail soo many ways (trust me). Next time your engine is getting very hot, open the hood and feel the air the fan is pulling...rev er up some and if its not hurricane force, then replace that clutch. With the new body style xj's they upgraded the E-fan to a higher flow rate...so that might be an option for upgrades.
Please add on if you have anything extra.
The two major problems with my jeep are that it over heats like crazy, and that the trannny is all messed up. So what i want to know is, with the tranny being messed up, could that have anything to do with the jeep overheating.
3 things.
1. It really really helps to post the make, model and engine size of the Jeep.
2. 'Messed up' is not quite a useful description of the problems. Nore detail about the symptoms is very helpful. However, I have found about half the transmission performance problems are related to low fluid level or a need for a fluid and filter change.
3. A very good 'overheating' thread was listed about 10 threads below yours. The search engine is your friend. However, here is the best post there:
(This is from another forum, but very useful)
Ok...there seem to be too many threads with "my xj is overheating" or "yet another overheating thread" or "it only overheats when..." and I am going to try to answer them all and maybe we can get this to become a sticky or maybe posted somewhere.
All cherokees from the factory have a cooling system which is designed to remove heat from the engine and transfer it away. Coolant being pumped by a water pump flows through cooling jackets/passages in the head and block of the engine. It flows around exhaust and intake ports and around the cylinders. From there it goes to the radiator which had hundreds of small fins to increase surface area and that allows as much air as possible to take heat away from the coolant and the cycle repeats istelf over and over.
Chrysler opted for a mechanical clutch style cooling fan to draw air over the radiator to cool at idle and slow speeds. Some models depending on options also have an electric fan for optional A/C or towing package which turns on with a/c (on 2000 and 2001 xjs it turns on with a/c only when pressure in the lines goes past 300 psi) or when coolant temperature exceeds between 218-224 degrees F.
When working correctly and all parts are maintained, this setup works great.
Here are some reasons your cherokee would overheat (240+f) at idle but not at 30+mph:
Fan clutch worn out
Old coolant
Aux. electric fan not turning on
blocked radiator or coolant passages
Low fluid level
Low engine oil level
Water pump impeller wearing causing low flow at slow speeds
clogged radiator fins or air blockage to radiator
Damaged fan shroud
Retards who upgrade engines and leave stock cooling system
If your cherokee overheats on the highway 240+F:
Clogged passages
Stuck closed thermostat
Towing a heavy load up a grade on a hot day w or w/o ac on (temp. overheat)
contaminated coolant
bad waterpump
clogged radiator fins
blocked airflow
brakes sticking/ebrake on
If you overheat on the highway and NOT at slower speeds / idle:
partial blocked passages not flowing enough for highway engine demand but flows enough at idle.
Radiator blocked or fins clogged for same reason above
Brakes sticking
Overloading
Also, xj's have tight engine compartments and they will run 220ish in the summer with a/c on or off and that is NORMAL for xj's. Other vehicles have different coolant temps that they are designed to run well at so dont do too much comparing such as " my Taco runs 210 even though I beat it half way to hell) Thats great...I only like taco from taco bell and the one she gives me...but anyway
Another thing to note...fan clutches run about 40bux new depending where you go. With personal issues there is no TRUE way to test a clutch because they fail soo many ways (trust me). Next time your engine is getting very hot, open the hood and feel the air the fan is pulling...rev er up some and if its not hurricane force, then replace that clutch. With the new body style xj's they upgraded the E-fan to a higher flow rate...so that might be an option for upgrades.
Please add on if you have anything extra.
CanaMark
08-26-2005, 04:12 AM
No fan shroud, because the fan shroud acts as a volume. But this would only overheat at idle if you idle for too long. My other Jeeps fan blades tore into my shroud leaving me to rip it out. But mine only overheats if I sit at idle for 5+Minutes, but it turns off automatically. It has only done that once. But sitting in traffic it will raise the temp guage kinda high at times.
Automotive Network, Inc., Copyright ©2026