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Not shifting above 8th on highway

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2K views 2 replies 2 participants last post by  petergueringenerator  
#1 ·
Wondering if anyone had a similar problem or maybe its normal shift strategy but it doesn't seem right. 2020 Ford transit 350 All Wheel Drive Cut away with aluminum utility body.

So here's what i got, if i accelerate moderately on high way or on ramp getting up to speed it will shift up to 10th gear, if i come up to a hill and or step on it to pass someone it will downshift to 8th but then it will stay in 8th gear forever, unless i slow down to 62 MPH then it will shift to 9th and 10th and as long as i baby it, it will stay there. but again if i step on it and it kicks down to 8th it will never upshift as long as im above 62 MPH, even if i take my foot off the gas going down hill it still wont upshift so i have to put it in manual and go up to 10th otherwise im doing 3,000+ RPM on highly in 8th for the duration of my highway time.

Dealer had it for 5 weeks and replaced some seals and a bushing in tranny, got it back and it will still the same they took it back for 2 days and then told me to come get it, they said its just the shift strategy programmed by ford and noting they can do.
Dosent seem right to me and wondering if anyone one else has noticed this with there transit and it truley is normal, but ive never seen a vehicle not upshift to save rpm and fuel exp with no load going down hill and seeing how it upshifts anytime below 62 MPH i feel like there is a glitch in the computer or programing???
 
#3 ·
Yeah im going to see if they have another transit on the lot i can test drive,
If it normal i will accept it but the tech that has operated it for 40K miles said he never noticed it till the last 6,000 miles or so, maybe timing and conditions but just seems strange, i would expect it at some point exp little to no load (down hill, no pedal applied) to up shift.

The justification dealer ship gave me was a print out from ford that shows the shift strategy of the 10-speed. and all it said was during light loads and normal acceleration it will skip gears on up and down shifts, during heavy loads and maximum acceleration it will not skip and go gear by gear for a lower RPM drop between gears keeping engine in its power band, never said anything about once in passing gear above 62MPH it will lock out 9th and 10th.