tranny issue? Hard shift from 4th to 5th?
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Put it back to stock and see what happens.
Mike said that the tranny learns and that after towing and running empty it will shift hard in all gears till it learns there is no load attached maybee with in a 100 miles, but I put 150 miles on it after I unhitched before it started slamming into 5th from 4th, but it only did it once and a while, normal drivivng, it also seamed to shift hard from 2nd to 1st, but with 4.30 gears it might be normal, it did that all the time with the tune and less stock.
I only put about 20 miles on it after I put it back to stock before hitching up the TT and bringing it home, it did not act up stock yet. It might be a week before I drive it again.
I did not want to experiment far from home.
On a side note I got the exact same milage with the tune and without towing, 7.6mpg's 8000# TT
Mike said that the tranny learns and that after towing and running empty it will shift hard in all gears till it learns there is no load attached maybee with in a 100 miles, but I put 150 miles on it after I unhitched before it started slamming into 5th from 4th, but it only did it once and a while, normal drivivng, it also seamed to shift hard from 2nd to 1st, but with 4.30 gears it might be normal, it did that all the time with the tune and less stock.
I only put about 20 miles on it after I put it back to stock before hitching up the TT and bringing it home, it did not act up stock yet. It might be a week before I drive it again.
I did not want to experiment far from home.
On a side note I got the exact same milage with the tune and without towing, 7.6mpg's 8000# TT
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I put about 240 miles on truck (2 trips to work) after towing with the stock tune and no shifting issues. I called Mike at 5 star and he sent a revised tune with softer shift points, I really could't tell if he just changed 4th to 5th or all shift points? It did seam firmer than stock. I put 120 miles on it and it shifted fine, its 90% highway so not allot of shifting, willl be towing in a couple weekends so well se what happens.
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I have a 13 f-250 SD with Fx4 lariat loaded and mine makes a noise shifting from 2 to 1st started around 8,000 miles and have been fighting with ford since about it. I currently have 22,000 miles and we have reset the computer and it still does it. Not very happy after spending 54,000 plus dollars on special order truck to have tranny issues this soon. Has anyone had same issues and were they able to fix I'm ready to pull my hair out. Thanks Rich
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Since my program change I only drove my truck a couple times maybe 400 miles, and it has not done the same thing again from 4th to 5th. Time will tell.
I do notice mine will downshift a little hard from 2nd to 1st with my 4.30 gears. I wonder if the trucks shift at the same rpm regardless of the gearing? That could explain some of the hard shifting issues. I do get a clunk when going in and out of park, my idle seams to high I thought about trying to lower the idle but I think its drive by wire so its not a simple as adjusting a stop screw.
I do notice mine will downshift a little hard from 2nd to 1st with my 4.30 gears. I wonder if the trucks shift at the same rpm regardless of the gearing? That could explain some of the hard shifting issues. I do get a clunk when going in and out of park, my idle seams to high I thought about trying to lower the idle but I think its drive by wire so its not a simple as adjusting a stop screw.
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Major Marvin
6.7L Power Stroke Diesel
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08-18-2014 10:37 AM