Reverse flow or conventional flow?
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From: Iowa
Reverse flow or conventional flow?
Does a 1999 F-150 with the 5.4 use a reverse flow cooling system or the conventional way? The reverse flow would be where the coolant flows from the radiator to the cylinder heads first before flowing to the engine block.
Senior Member
Joined: Oct 2002
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From: St. Louis (Out in the woods)
The manuals says:
The engine coolant flows:
* from the lower radiator hose (8286) to the water pump.
* from the water pump to the engine block and the cylinder heads (6049).
* thermostat closed, the coolant returns to the water pump.
* thermostat open, the coolant flows back to the radiator.
* to the radiator for heat rejection the back to the lower radiator hose.
* from the lower radiator hose (8286) to the water pump.
* from the water pump to the engine block and the cylinder heads (6049).
* thermostat closed, the coolant returns to the water pump.
* thermostat open, the coolant flows back to the radiator.
* to the radiator for heat rejection the back to the lower radiator hose.
