When I replaced the old waterpump, I also went to replace the thermostat and found It didnt have one installed in it. I left it that same way after I put in the new waterpump @ first but it now has one installed beacuse someone had told me that might be my problem but it didnt make a difference. Both the upper and lower hoses are about equally warm. The lower hose is coiled. When I had replaced the waterpump, I also removed the radiator and flushed it good along with the block. Both flowed water through them well. You can rev the truck up and see the water suck down and when you let off it comes back up. After about 5 -10 mins of running the gauge rises to the hot range and then it will start coming out the overflow tube after I shut the truck down? Dont know what elese it could be but a head problem but I had heard you would have water in the oil or oil on the plugs. All siz plugs were nice and dry and no water in the oil? I'm lost
