7.3 Cooling

[SVT4X4]

Specifications
Materials

Name	Specification
Motorcraft® Premium Cooling System Flush VC-1	ESR-M14P7-A
Motorcraft® Yellow Concentrated Antifreeze/Coolant VC-13-G	WSS-M97B57-A1
Motorcraft® Yellow Prediluted Antifreeze/Coolant VC-13DL-G	WSS-M97B57-A2

Materials

Antifreeze/Coolant	Fill Capacity
Material : Motorcraft® Yellow Concentrated Antifreeze/Coolant / VC-13-G (WSS-M97B57-A1)	22.5 qt (21.3L)
Material : Motorcraft® Yellow Prediluted Antifreeze/Coolant / VC-13DL-G (WSS-M97B57-A2)	22.5 qt (21.3L)
Material : Motorcraft® Premium Cooling System Flush / VC-1 (ESR-M14P7-A)	—

Pressure Tests

Item	Specification
Complete cooling system maximum pressure	Use individual readings listed on the pressure relief cap
Radiator (out of vehicle)	138 kPa (20 psi)

Fan Clutch Test Specifications

Item	Specification
Minimum speed requirement	1,500 rpm
Maximum speed requirement	2,400 rpm

Thermostat Opening Temperatures

Item	Specification
Starts to open	86.7°-90.6°C (188-195°F)
Fully open	100°C (212°F)

 

[thevol]

What engine temps are folks seeing towing. I added the coolant temp on top of the gauge in forscan and towing 8k at 80deg Im seeing fluctuations from 180 downhill to 210 on the steepest uphill going pretty slow on side of mtn, 30mph or so. It doesnt stay rock solid like some other trucks Ive had and swings around based on engine load. Assuming thats normal on these 7.3 trucks?

Edit: Nevermind I just read the specs closer above about the thermostat and its not even full open until 212 deg lol. Just used to my Cummins locking in at 190 and holding very steady. Looks like this 7.3 is designed to swing around from 188-212deg which is basically what its doing.