Jeep cherokee ran hot and now the fan has stopped. What do I need to fix the problem? I put water in the radiator it started bubbling water and leaking water from bottom of the radiator. I put a stop a leak in it and the fan started making a grinding sound then it stopped startd smoking and I shut the car off.

disconnect the heat hoses going into fire wall , put hose into one with pressure and flush as it sounds like it could be bloked in the heater core,the other thing that could be the problem be the hot ,cold switch as it restricts the flow to makes the heater hoter or colder , it might need tlc or replacing as it is manaul not elec

you may have a leak in your radiator,, you can have them pressure checked . I'd do that first , by put thermostat in, I'm assuming you meant you replaced the one that was in there to begin with, if thats the case, make sure you replaced it with the correct temp rating for your car ,

Yes a bad water pump will definitely cause it to run hot. you'll probably be able to hear it as well as a whinning noise from the front of the engine. Also check for really low or incorrect fluid. jeeps are know for bad water pumps and leaky radiators. the heater pump is a seperate pump from the water pump. Also check for radiator fan opperation while the vehicle is stopped. If the fan is not coming on, it could be a fuse, relay, or intake air temp sensor.

you blew your head gasket.

you need to check your car for back pressure, get a clear bottle filled with water. while engine is running put the small hose from the radiator going to the reserve and put it in the bottle. if you see bubbles going out from the hose then you have to change your cylinder head gasket replaced.

sounds like one of two problems your fan is not working properly or you radiator is particularly restricted

never heard of this before ,i have worked on quite a few jeeps here in spain but never had this before .power steering yes ,radiators yes ,funny american electrics big time ,does yours have the manual fan and a back up electric fan or is it all electric fans .Quick tip ----if it starts to run hot ,put the heater on screen and blower on full this will keep the engine cool ,if no heats comes out of heater then stop because you have no water in the rad

did try replacing the water pump? quick trick get a soda bottle with the mouth big enough to fit and seal in the radiator filler neck fill botle with water set it in place in the radiator neck upside down start engine and look for air bubbles streaming up the water in the sodar bottle if bubbles are present then you have a blown head gasket causing you to over heat

You need to verify that the gage is accurate, if it is then the cause is the thermostat, but check the gage first, a repair shop can do this or you can feel the air coming off the radiator fan, if it is really hot changing to cool rapidly then the T-Stat is sticking open.

Had this problem and one thing that even Chilton manuals only show in fine print sorta say is that Jeep cherokee has a relay sensor for the coolant fan usualy right behind the passenger or driver side headlight you may have to remove the bumper also its rather easy.Its a liitle black box thats screwd down on the panel just unscrew it unplug it replace mine ran me around $60.00.Before I learned about this after replacing the thermostate and just about to rip out the water pump my buddy told me about the sensor after replacing over a year ago no problems.