
5-11
3500HD
Full
-
Size Van Models
8. With the coolant surge tank pressure cap off, start the
engine and let it run until you can feel the upper
radiator hose getting hot. Watch out for the engine
cooling fan(s).
By this time, the coolant level inside the coolant
surge tank may be lower. If the level is lower, add
more of the proper mixture to the coolant surge tank
until the level reaches the cold mark for 3500HD
models or the FULL COLD line for full
-
size
van models.