|Step one was to add a puke tank and a higher pressure radiator cap. The old cap was
a 6 1/2# cap. I changed to a 13# cap. This puke tank helped capture some of the
expanding coolant, and (I think) allows some to be drawn back into the radiator,
but the truck still spews coolant on occasion.
|Step two was to change the mechanical fan to an electric fan. I picked up a Derale
High-Output Dual RAD Fan and Shroud Kit
|This fan kit required new wiring and separate fuses for each of the two fans. Since
each fan can draw up to 25A, I decided to also upgrade my alternator to a 140A unit.
The fans also have separate thermostats. The first fan turns on at 180o and
the second at 195o. Other than functioning, I do not yet know how well this
addresses my coolant overflow issue. A true expansion tank of some form would be my next