I know there are other forums for this, but I thought I would start here. I have an '05 Trailblazer with a V6. I recently had to change the temperature sensor and decided to change out some other things while everything was taken apart. I replaced the thermostat, upper radiator hose, lower radiator hose and ended up having to change the radiator due to putting too much force on the hoses when changing them. I obviously lost most of the fluid when changing out the radiator. I have added more fluid to the system and bled it out where it will not take more fluid. There seems to be a leak and I am not sure where. My suspicion is the water pump. I considered going ahead with replacing the water pump while everything was taken apart, but did not think it was necessary. I was not trying to replace every part I laid eyes on. Anyway, anyone have any ideas? I am thinking the water pump is blown and that is why the leak.
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