Loss of power while towing
Newbie here, have had my 6.0l for about 8 months. (108k on the miles) I haul a 32ft bunkhouse (9500lbs loaded) TT 7-10 times a year (mostly short trips) 1-3hr drives.
Last trip it towed out with no problems at all (ate the road and hills up) on the way home (1.25hr run) the wrench light came on and I lost power. It would shift smoothly between gears, start from a light fine, and on a straight line would get up to 60/65 seemingly fine.
When hitting a hill it would lose speed and power, I could have it floored and nothing! No rev, no speed, would even downshift but not give me any power. Took it to a ford mechanic and they couldn't find any stored codes. Suggested iI replace EGR, Oil cooler and clean turbo (all to the tune of $3500.00)
After parking overnight and restarting, no wrench light and seems to running great... Towed the camper on a short run (16 minutes) just to get it back to the storage facility. Seemed fine.