Elevate nose of truck drive on ramps or something to add
height, add to proper fill point, turn heat to hot start truck
watching coolant tank, w cap off let run for 10-12 mins
check vents to see if you have heat,if heat is present, too off
coolant to proper fill level and watch for bubbles that are
continuously occurring AFTER youve filled system. No
bubbles good, lots of bubbles when running bad if tank
"pukes" coolant out when thermostat opens you have
exhaust gasses being introduced to cooling system. Usually
indicating a head gasket/cracked head issue. Cracked head
is usually occurs when engine shuts down on is own. Tritons
can be fixed depending on your skill set some special tools
are required to set up timing.