I have a 98 wrangler 2.5l 5 spd with 136000 miles on it that I just purchased. New water pump ,radiator , oil pump sensor, spark plugs and wires. My motor has a ticking sound( not loud loud) I really cant hear it from the cab but when I get out I can hear it and i can also smell what seems to be antifreeze and my heater does not blow hot air ,it just blows cool air out. Can someone give me some ideas or directions to try and pin point some of these problems. Thank you