D 250 Pickup L6-359 5.9L DSL (1992)
11. Remove the thermostat housing, thermostat, inner and outer seals and lift bracket.
12. Clean the mating surfaces of the thermostat housing and the cylinder head.
11. Remove the thermostat housing, thermostat, inner and outer seals and lift bracket.
12. Clean the mating surfaces of the thermostat housing and the cylinder head.