hi there ok heres where i start ive changed the water pump and thermostat ive even removed the thermostat from the fuel cooler all pipes are on the right way it will drive temp sits low then goes to middle when thermostat opens now if driving around town it will sit there all day even off roading in low range it dont over heat but soon as you get on a motor way and above 50 mph she starts heating up and still rad is cold one side now ive spoke to a1 landrover they say it sounds like head gasket but i just dont know any one have any ideas

any help as im stuck on what to do next

Remove the rad and see if you can actually get anything through it.... it might be blocked.

Sounds like a blocked rad to me, take it out and renew.


http://www.paddockspares.com/pcc001070-radiator-assembly-td5.html