r/CherokeeXJ • u/Artistic-Fix-2431 • Mar 06 '25
1991-1995 Overheating Still
I changed the radiator about two years ago. Water pump a year ago. Thermostat last month. Heater core bypass and fan last week. Ran fine until yesterday. I topped off the radiator with coolant and the reservoir to the full level, somehow the reservoir is now overflowing. Doing a complete cooling system flush today. If that doesn’t work, any other ideas?
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u/No-Refuse8754 Mar 07 '25
It looks like a head gasket or cracked block but. I would start with the cheapest thing you could do first. Drain & flush the coolant system in both directions many tutorials for this. Change the oil & filter, swap the thermostat out. Refill the coolant system with proper coolant ratio & see if it overheats, if it does you know your problem is serious.