I know most of you dont like jeeps, I have a K5 also so give me a little credit. Need a little help with a problem the jeep is having. It has the 258 I-6 and at freeway speeds the temp gauge goes pretty high, close the the "H" IT is 6 below zero out and this is still happening. around town driving the temp stays at the middle of the gauge. I just replaced the thermostat tonigt and still same problem. after a ten minute drive and the gauge reading high I was still able to hold the radiator and hoses with my bare hands as well as parts of the block and head. is it possible the water pump cant keep up with the engine speeds on the highway? 2500 RPM @ 60 mph. maybe the water pump is bad. even in the summer the jeep ran cool around town. havent driven it since then but am forced to now since the blazer is down for a while. any help or ideas would be great. also the jeep has no fan shroud and the fan is a direct drive, not a clutch fan.