2003 dodge dakota quad cab overheats(160000kms)
Just this summer i started having overheating issues with my truck.Only when it is idling ..if i increase the rpms or drive on the highway the temp drops.the electric fan seems to work fine. First i changed the rad cap,then my mechanic changed the thermostat,then the clutch fan.and the hoses in and out of the rad ,,no fix...then we changed the a/c condensor rad because the fins were all banged up and this seemed to stop the overheating although i thought the needle on the temp gauge was still getting a little high .nonetheless it hasn,t overheated for awhile(month or 2) but after my last trip on the highway i stopped at an intersection and it started to overheat again ,,again higher rpms and highway travel dropped the temp.. it doesnt always overheat but ,it has become a nuisance and unrelaible.. i am thinking of either rad flush or replacement or water pump replacement.. the oil looks fine and i am not losing coolant...Any suggestions..??