Quote Originally Posted by koukis14
WOW ok the thermostat opens when the coolant gets to a certain temp. If the thermostat is not opening or weak it will restrict flow. DO NOT RUN YOUR CAR WITHOUT ONE!

agreed. I hate these kno-it-nothings. make sure there are no air pockets in ur system.

either ur buying shitty as t-stats or ur waterpump isn't very good. Is ur radiator new? used? clogged up?