If the problem is lack of heat, the most common failure on this model is the blend door. Check the HeaterTreater web site for diagnostic information.
If the problem is lack of control over the switch between defrost/vent/floor vents, this is a vacuum controlled mode door and the problem is usually a vacuum leak somewhere in the system.
Most likely your heater core is leaking.
No, the XJ Cherokee does not have the same heater box as a WJ Grand Cherokee.
No you cannot sue unless it was sold with a warrenty.
The water is not circulating through the heater core or you have a control problem. If the heater is putting out heat then it is probably a control problem. If no heat then - water pump out, low on coolant, or maybe the therostat is stuck open.
no
blend door failure is a common problem on 97+ Jeep Cherokee
There are several things that can cause heater problems in your 1998 Jeep Grain Cherokee. The most common cause of heater problems is low fluid in your cooling system.
Why the heater or defroster may not work in a 1993 Chevy Caprice Classic because of the heating core is going out.
Yes they have a heater/defroster.
Common problem. The heater grid burns a hole and the only fix is to replace the element.
ignition barrel needs changing this is a common fault
The Grand Cherokee is notorious for failures of the air flow control. However the Cherokee has the same basic problem. The blend door has a tendency to break, killing control over air flow through the heater core. The fix is fairly simple with the kit from HeaterTreater. Check the product at heatertreater.net.