04 jeep liberty 3.7. cooling resevoir boiling and overflowing out the back

Jeremy Jochetz

Asked by Feb 16, 2015 at 06:53 PM about the 2004 Jeep Liberty Sport

Question type: Maintenance & Repair

on my wife o4 liberty coolant resevoir is building up and over flowing out the back, could it
b the waterpump even though its not leaking or making noises

3 Answers


could have a bad thermostat or bad head gasket.

Jeremy Jochetz

Thanks I replaced thermostat still doing all signs pointing to head gasket removed cap and and started overflowing out where the cap goes


You can do a combustion leak test to be sure, test kit cost about 40 bucks and lots of YouTube vids on how to do it. Fairly easy and quite conclusive.

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