bobshaw

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Question Asked: Pressure build up in cooling system
December 12, 2012, 01:22 PM
From a cold start the truck begins to build temperature almost immediately. I have changed the thermostat and in the process i hooked it up without the thermostat to make sure the water pump was working (it was). The return line that comes from thermostat back to top of radiator is building a lot of pressure and does not seem to be getting hot at all. why is the truck getting hot? also, if i take the radiator cap off while the truck is running it will actually start pushing fluid out.. light it doesnt have anywhere to go
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