Lubbockguy1979
Active member
So truck is a 16 cclwb 4x4 srw f350. 3.55 gears. Running 295/65/20 tires. Truck has almost 49k. I had a issue where it got warm and blew coolant at 4th of july. Towing a 39.5ft 14ft tall toyhauler. We were traveling at night to avoid 100±⁰ days then. I blew it off then as a fluke. Truck didnt miss a beat or get ”hot" on the gauge but was close. Fast forward to thursday we packed up to head to Colorado. Again traveling in the evening. Trailer is likely at a solid 16-17k and should be within the trucks factory " spec". Pulling hills you can watch the temp gauge climb. Ive been locking put 6th gear and began locking out 5th. Oil temps got to 248⁰ tranny was like 190⁰.... Seems like the issue is on the secondary cooling system. The fan does kick on truck is also running tyrant tow tune. Im not trying to run 70+mph. We are talking 40-50 climbing hills which are fairly steep. Just never had a problem out of this truck. When we get home i plan to replace the coolant in both systems as its time plus ive diluted them by topping off the secondary. But what do i need to look at. Looks like its blowing it at the cap and im backing off alot on hills to keep temps down on my way home
Sent from my SM-G975U using Tapatalk
Sent from my SM-G975U using Tapatalk