Installing thermostat and fuel filter.

After removing the thermostat and making sure it worked properly by heating water with a torch and watching it open we had to install it back on the truck. After installing the thermostat into the housing we bolted everything down to specs and used a neat little tool to refill the cooling system. We used a tool that plugged the coolant reservoir then used shop air to create a vacuum pulling the coolant out of the containers and into the coolant reservoir. After we found the leaks of course. After refilling the coolant we checked for leaks and everything was good. That ended the first class of the day. The second class was fuel systems. In this class we replaced the fuel filter and primed it on a  series 60. We also looked at our new Snap-on tool we got and let me tell you that diagnosis

machine is crazy. It can read everything the computer sees.