Have an overheating issue on this van. Anyone have any experience with diagnosing overheating. We suspect partially blocked radiator . Inspected water pump-ok. Thermostat -ok. Drive it for 15 mins , it gets to 90oC is stable for a little while. Then it starts climbing to 130 , then if you reduce speed it comes back down to 90. Eventually it loses coolant via expansion chamber and check coolant light comes on. Check rad. cores with Temp probe ? Next step is to pull radiator out and inspect cores.No previous service history. No sign of leaking head gasket.


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