Forum Discussion
ShinerBock
Jan 29, 2020Explorer
4x4ord wrote:stsmark wrote:
FYI the Ford Charge Air Cooler is not tied to the engine coolant. It uses the Secondary Radiator which is mounted in front of the other. The Trans cooler and Oil cooler are the only other items tied to it.
Do you know how the coolant is circulated through the intercooler on the Powerstroke? Electric pump?
While most people think they are separate because it has it's own bottle, it is only a degas bottle and the two systems are not completely isolated from each other. This secondary system is also tied to the EGR cooler so it has to soak up and dispell heat from the trans cooler, fuel cooler, and EGR cooler along with the intercooler.
IT TAKES TWO! – SECONDARY RADIATOR R&D, PART 1: FACTORY REVIEW AND 3D MODELS
Edit: It appears the system was updated in 2015 and the secondary system is no longer attached to the EGR cooler and is now being cooled by the primary system.
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