Question about 1997 Jeep Grand Cherokee
Two reason for that. interior heater element is clogged, or cloged with airpocket. park your car on uphill, or raise infront of your car, turn on heater on highest setting and adjust it to give heat to cabin, let it bleed the air inside your cooling system. overheating expansion tank and boiling water makes you sure that air wont allow your coolant to travel insite hoses. (there is another probability that you have installed reverse rotation water pump, and this wont be able to create enough flow)
Posted on Dec 02, 2014
Sounds like you need a thermostat. Check your anti freeze level.
Posted on Dec 01, 2014
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Posted on Jan 02, 2017
I would recommend flushing the cooling system and replacing the thermostat.....easy to do and only about $14 for a new thermostat.If that does not work then you either have a coolant leak somewhere or a bad heater core. I would also pressure test your cooling system before you flush the system to look for leaks in the system
Posted on Dec 14, 2009
If you put the thermostat in correctly (spring towards the engine) that should be OK. Likely if the water pump wasn't leaking or had a bad bearing, you wasted your $ on that.
If you re-filled it and did not have the heater on high heat, you may have some trapped air in there. But, still overheating says another thing. If you have a blown head gasket, it can pump compression into the cooling system and drive the coolant from the core. It will also overheat. You can have that tested at most any decent shop that will do a hydrocarbon test to find that.I think someone makes a chemical test kit for that but not sure if it's very expensive or not. White smoke from tailpipe will also be an indicator as will be any coolant in the engine oil or coolant on one or more spark plugs. If it turns out that it has a head gasket problem don't stop looking for problems as often a faulty fan or obstructed radiator can cause the initial overheat that caused the gasket to fail.
Posted on Jan 16, 2010
Testimonial: "Thank you. I was hoping not to hear head gasket, but that's where it seems to be leaning towards."
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