Hey guys I'm new to the forum. Haven't owned a jeep in a few years and just bought a 1985 XJ Pioneer with the 2.1L renault diesel. It's a strong runner but I'm having a weird issue.
Lots of moisture on inside of windshield when running the heater and when I wipe it off it's sorta brown. It smells like coolant as well. Does this mean I need to do the heater core? Based on what I've read through searching it's looking that way. Also I noticed that the diesel has an air/oil separator... would replacing that help??? I haven't done a thorough check under the dash yet but did notice some oil when I brushed my hand under the passenger side. Any help or suggestions would be appreciated!