Auto diagnostic code p2181

SOURCE: 1995 Cherokee Country engine getting hot

Sounds as though you may have an air pocket trapped in the engine block. Try this - after the engine is cooled down take the radiator cap off and jack the front end of the jeep up in the air and support with jack stands. Allow the vehicle to sit like this over night and when you come out in the morning inspect the fluid level and fill as necessary to proper level. You may have to do this twice to get all of the air pocket out of the system. There are other ways but this is the easiest to do without causing allot of frustration. Hope this helps.

Lefty64

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: coolant fan not turning and air conditioner blows out hot air.

Re-check the relay to make sure it's still good, then check the fan by hot wiring it to the battery. Also check the temp sensor on the engine. If the check light is on, don't drive it 'till you find out why or you can damage the engine.

SOURCE: FAN BLOWS HOT AIR LOW (1), TO HIGHER 2,3, OR 4.

you need to replace your blower resister,it is located at your blower box and will have 4 or 5 wires going to it

SOURCE: cooling fan not working

This is a thermo fan and is temperature controlled it will only start up when the vehicle gets hot. Take the vehicle for a drive and when the thermostat opens up and the temp guage on your dash gets up half way that is when the fan should start aprox.. get out of your car and leave running and check to see if its working..

If not check all wires going to plug at the fan,
although the aircon one should come on when the aircon is switched on. If you have a bit of electrical wire handy you could make 2 lengths atach to the neg and pos of battery disconnect the fan plug and attach the other ends of the wire it doesn't matter about polarity as it will just run backwards, if the fan runs then there will be a problem with the sensor or wires see an auto elec,, ******Keep hands clear of fan when ever key is in the ignition as it can start at any time******