First you need to check the fuses. The power goes from the fuse to the selector switch and then to the resistor. It then goes to the relay and then the fan motor.
The most common failure is a "melted" fan electrical connector. Check www.wjjeeps.com for pictures and a diy fix. You also need to check the re-circ door. This door breaks and falls down into the fan motor, blocking air flow and overheating the fan motor. Check the HeaterTreater re-circ listing on Ebay for diagnostic information and pictures.
blower motor bad or no power to it chech fuses blower switch blower motor
Need more info like, is the blower working or not, is the air coming out cold or warm when it should be hot, is the air not coming out where it should be.
I mean how do you disassemble the fan blower in a 1998 Jeep Grand Cherokee Laredo. how do you remove the blower fan from the car in the Grand Jeep Cherokee Laredo.
Test the resistor bank before getting into anything else. These are the speeed controls for the blower motor.
Under the hood, on the passenger side firewall, close to the passenger side fender.
There has to be a Blower RELAY at fault, the problem is I don't know where it's located, YET!! If you have a repair manual and can locate the Relay please post info...
The blower may simply have burned out. If the blower is out then the heater probably still works.
If you have no heat in your 02 grand Cherokee limited blower works heater lines are hot good circulation just no heat comes out?Maybe blocked heater core. Also check thermostat.Your problem is with the blend doors in the GC. Check the HeaterTreater eBay listings for diagnostic information and a fix.
There is a fuse that protects the HVAC (Heating, Ventilation, Air Conditioning) blower motor circuit.
sometimes this is caused by the blower resistor heating up and shutting the circuit down, or it could be in the blower itself heating up and shutting down.
Common problem. The heater grid burns a hole and the only fix is to replace the element.
No, the XJ Cherokee does not have the same heater box as a WJ Grand Cherokee.