Sunday, November 21, 2010

How to change a thermostat in a1990 f-250 diesel?

You will need to follow the top radiator hose out of the radiator and to the block. Unhook the hose from where it attaches to the block and there will be two nuts holding the fitting to the block that the water hose fits on. Underneath this fitting is the thermostat. Just undo the bolts and replace the thermostat. Pay attention to the way that the thermostat is laid into the block and be sure that you get it back in the same way. Also be sure that the truck has cooled as there will be some antifreeze spillage and that stuff create nasty burns. You should be able to do it be yourself without any problems.

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