2007 frontier se pushing water
3 Answers
Overheating at idle or while driving? Fans working correctly? Bleed air out of the system? If those check out, perform a cylinder pressure test to eliminate a head gasket issue.
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Overheating while driving is a coolant circulation problem. Since the water pump and thermostat are new we can cross them off the list. Other causes are low coolant level, air trapped in the cooling system, lower radiator hose collapsing under suction from the water pump, clogged radiator and cooling system passages in the engine. Once you have ruled out low coolant level, air trapped in the cooling system, and a collapsing lower radiator hose a good cooling system flush with a chemical cleaner may be needed. Hope that helps! Jim
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