05 equinox overheating -replaced head gaskets, thermostat, waterr pump, fan relays, EGR valve & all hoses,no air locks. heater gets hot like it should. what else could it be?
Clogged radiator or passage in the engine block of the cooling system ?
Try a cooling system flush.
I did flush the cooling system
does it get hot standing still or at highway speeds or both??
Are you positive that the vehicle is overheating and not just a bad temp gauge saying it is overheating ? Also feel the top and bottom radiator hoses once vehicle has reached operating temp if both feel the same could just be a bad temp gauge. If bottom hose gets hot and the top hose stays lukewarm remove t- stat then reinstall hose to see if it overheats with out t-stat installed.
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