SSG here, couple things (noticed not many soldiers will see this but hey) 1. Number one cause of over heating is wrong coolant from the operators. The FLEET brand coolant is not always 50/50 and if the mechanics do not teach the operators about mixture. The coolant will be to rich and cause overheat because it is unable to transfer heat effectively. 2. I don’t think anyone mention the fan clutch relay by the passenger window. Those go out A LOT, and work with the fan by turning it on when it goes about operating temp. 3. The oil cooler also cools the transmission, that is 90% of the coolers job for these trucks. Reason the oil lines go to the transmission. 4. There is a tool for coolant and oil cooler fins that allow for repair, but I haven’t seen one in FRS or contact trucks ever.
SSG here, couple things (noticed not many soldiers will see this but hey)
1. Number one cause of over heating is wrong coolant from the operators. The FLEET brand coolant is not always 50/50 and if the mechanics do not teach the operators about mixture. The coolant will be to rich and cause overheat because it is unable to transfer heat effectively.
2. I don’t think anyone mention the fan clutch relay by the passenger window. Those go out A LOT, and work with the fan by turning it on when it goes about operating temp.
3. The oil cooler also cools the transmission, that is 90% of the coolers job for these trucks. Reason the oil lines go to the transmission.
4. There is a tool for coolant and oil cooler fins that allow for repair, but I haven’t seen one in FRS or contact trucks ever.
But number 1 issue is always fluid and operator level pmcs
Promote SSG Hollis !!!