RG67MA Posted yesterday at 10:59 AM Share Posted yesterday at 10:59 AM I've got a 1990 with the 4.0L and the AW4 with the original closed cooling system. Early last year I replaced radiator because it developed a pin hole and installed a new Mopar thermostat. It's been running great until now. I need to top off the coolant bottle every day. No coolant drips on ground. The oil dip stick only has clean oil on it. I do smell coolant from the engine area when I open hood. Any ideas on what could be going on? Link to comment Share on other sites More sharing options...
RG67MA Posted yesterday at 11:02 AM Author Share Posted yesterday at 11:02 AM One more thing...I pressure tested the system yesterday and the pressure drops slowly, but no obvious leaks under pressure. It had a 16 radiator cap on new radiator last year, but it would weep, so I replaced it shortly after (May 2024) with a 20 and the weeping stopped. It is not weeping from cap now. Link to comment Share on other sites More sharing options...
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