It would be best to disconnect the coolant lines and flush the core after the radiator flush. This will clear any sediment from the core.
No, the entire dash has to be removed.
A bad smell coming from the heater in a vehicle can indicate a bad heater core. One way to check this out is to see if the smell is worse when you sit in the passenger seat. If it is, there is a good chance the heater core is bad.
Try taking both heater hoses off and run a garden hose through the core with lots of pressure to be sure its not plugged. If the core is ok the radiator is probably plugged and will have to be boiled out or replaced.
if you got antifreeze on your windshield when you turn the heater on, it's bad
Disconnect the hoses in and out. Then run a garden hose with low pressure through it. Once the soolant is clear the core is flushed.
The heater core is inside the hvac housing behind the dash.
About $600
Yes
The heater core is inside the hvac housing under the dash.
It would be best to disconnect the coolant lines and flush the core after the radiator flush. This will clear any sediment from the core.
I also have a 2000 jeep wrangler. This year has a problem with the heater core plugging up. You can either try to flush it out, or just replace the heater core.
The two hoses that run thru the firewall into the heater core should both be hot. Check them with your hand; you may need to flush/replace your heater core. I hope this helps you. Mark
Do you live in an area that you need your heater?
between 6 and 8 hours
The Haynes Jeep Cherokee 1984 - 1996 book has 7 different diagrams which show how to do that repair.
No, the entire dash has to be removed.