Problem has worsen over the years
Replace thermostat. If that does not solve problem, suspect leak in head gasket.
SOURCE: Heat/AC Blower fan speed only works on High
hello, this sounds like a bad blower motor resistor!! its cheap and easy to change..if you need more info on locations let me know,, good luck.....marty
SOURCE: 94 jeep cherokee: check engine light code 35
No its not true,the cooling fan comes on when the coolant temp reaches a certain point it closes the switch in the temp sensor wich in turn closes the relay and powers the cooling fan,the reason it comes on with the A/C is that it's wired to bypass the temp sensor and associated relay because the A/C compressor forces the motor to work harder and the coolant temp to rise significantly faster,the relay needs to be replaced or you will overheat the motor and possibly cause serious damage.
SOURCE: My Jeep Cherokee 95 Radiator temperature is always hot
100 degrees f? That is way too cold Either you have the wrong thermostat or it is wide open. 180 degrees is nominal and give you the best performance.. With AC on, expect 190 to 200 degrees. We are talking farhrnheit and not ccelsius, correct?
SOURCE: radiator fan motor on 2003 Jeep Grand Cherokee
I hope that you haven't went out and bought a whole new assembly due to the other poster's response. Yes you can just replace the motor otherwise why would you be able to buy the motors separately. There's usually 3 bolts that hold the fan shroud in that you have to remove along with the electrical plug. It takes some manipulation to get the entire fan/shroud assembly out (it helps to have someone underneath the vehicle guiding it) but once out you will see a clip over the top of the fan. It's kind of a challenge to get off but using a hammer and a flat head screwdriver you can work it off. Be aware that you have to put the clip back on so don't pry it off and ruin it....just kind of chisel it off. Once off, the fan blade comes off with a little effort. There's your exposed motor. Take off the 3 bolts and pull out the wires and replace it with your new motor. I hope this helps others....I couldn't find this information anywhere and figured it out along the way.
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climate here is very hot, so the thermostat was taken off many years ago.
The thermostat is to designed to keep the engine at the right temperature. Taking it out will make your car run hotter than it should since all the hot anti freeze is going to the engine all the time. replace the thermostat no matter how hot it is in your area.
thanks for your help Ali Galam. Do you know how the thermostat works, I mean, at what temperature does it open to let the hot water go to the radiator and cooled water go to the motor?.
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