Hi im Dan from England, new to Jeeps but liking it alot, have a 2001 3.1 td Cherokee, having a few issues, firstly the cabin temperature takes along while to get warm and never gets roasting hot, coolent low light has come on but ive checked it over and has plenty of coolent in!
2nd Issue is slight oil leak from somewhere near back of engine but i cant see where, any information on week spots would be great. The oil leak does not bother me as its had it a while by looks and not using hardly any at all!
Many thanks in advance Dan

 

I can't help you with the oil leak because I'm not familiar with the engine.

The lack of heat could be due to a clogged/partially clogged heater core or air in the cooling system.

I'd flush the heater core and cooling system then refill and purge the air.