07 F-150 trans fault
Truck in sig picture, 5.4 liter, 4spd, 4:10 rear. I know I'm towing at max CGWR of 15,300 or better, but this "trans fault" has been coming on with more regularity in the last two years. This weekend ...
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My configuration has the 8200 GVWR package, 2200 lb payload, don't know for sure, but I've heard upgraded radiator, does have a trans cooler, 7 lug wheels, not sure what else.
Won't dispute anyones take on my trans temp, might well be correct. Not 100% sure 250 was the actual reading, but sticks in my head. I know I've taken readings before with the same IR thermometer on summer days while NOT towing and have been in the 190 degree range. My measurement was taken directly on the side of the pan at midpoint and about 6" away so I could rule out spill-over of the IR sensor from other sources. Wouldn't guarantee it, but I believe the reading was pretty accurate (other than my memory of the exact temp number). The strange part about the fault coming on this trip, both times, was that it came on so early on the hill. Both times I had been towing for over an hour and had already scaled hills nearly as steep as the runup to the mountain where the warning came on. Ambient temps were mid 50's. In fact, on the way back home, the alarm actually came on when I had just ascended a moderate grade and had leveled off right before the steeper grade. IOW, I was actually going slightly downhill before starting up the steeper grade when the alarm came on. No other hills on the two hour trip made the alarm come on, though to be fair, unless I stop and shut it off to reset it, I'm not sure the alarm will sound again, so maybe a temp alarm was triggered, but because the initial alarm wasn't reset, I never heard it.
As I get further into this situation, I'll update my finding here. I'll start recording readings the next time I drive it to get a data base going. Thanks all for the input.
Won't dispute anyones take on my trans temp, might well be correct. Not 100% sure 250 was the actual reading, but sticks in my head. I know I've taken readings before with the same IR thermometer on summer days while NOT towing and have been in the 190 degree range. My measurement was taken directly on the side of the pan at midpoint and about 6" away so I could rule out spill-over of the IR sensor from other sources. Wouldn't guarantee it, but I believe the reading was pretty accurate (other than my memory of the exact temp number). The strange part about the fault coming on this trip, both times, was that it came on so early on the hill. Both times I had been towing for over an hour and had already scaled hills nearly as steep as the runup to the mountain where the warning came on. Ambient temps were mid 50's. In fact, on the way back home, the alarm actually came on when I had just ascended a moderate grade and had leveled off right before the steeper grade. IOW, I was actually going slightly downhill before starting up the steeper grade when the alarm came on. No other hills on the two hour trip made the alarm come on, though to be fair, unless I stop and shut it off to reset it, I'm not sure the alarm will sound again, so maybe a temp alarm was triggered, but because the initial alarm wasn't reset, I never heard it.
As I get further into this situation, I'll update my finding here. I'll start recording readings the next time I drive it to get a data base going. Thanks all for the input.
