NAUXJ
New member
So I have a 1990 Jeep Cherokee with the Renix engine and a closed cooling system, lately I've been having over heating problems. My temp gauge would sometimes randomly raise above 220 and begin to over heat whether I've been running it for 5 min or an hour, there really hasn't been any consistency, and often(but not every time) when it over heated the radiator cap would either burst off or come loose and coolant would spill everywhere. I've some friends mention that if there's a crack in the reservoir that could be causing it, and I should replace that. I've also been told that maybe my electrical fan isn't always turning on when it's supposed to and I should just put it on a switch. I've already lifted up the back of the hood to let hot air escape, but I'm wondering if you guys might have another theories or suggestions as to what I can do?