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Old 07-23-2019, 12:03 PM   #101
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Originally Posted by Lou_Becky View Post
Don't have an F-150, but I will say my last chevy 2500HD Gas would hold in a lower gear for way too long after it had downshifted climbing a hill. It would sometime take almost WOT before it would upshift, even on a flat or slight downhill. Even turning off TH or using the chevy version of "manual mode" would not let it upshift. So I may understand where the OP is coming from thinking it is dangerous.
I would agree with this if that is the way it works. Having the motor already at almost 6000 rpm and having to literally bury the throttle in order to let the truck know I'd like to go a tiny bit faster is bad programming. Just a little throttle should be enough to let a vehicle know you would like to go faster. At least that's worked well for the last 110 years.
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Old 07-23-2019, 01:10 PM   #102
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There is a mode on this 10 speed transmission(I own the exact same year model truck, engine and transmission) where you can limit the gear that the transmission can upshift to. Who knows if he had that selected when all this was happening.

We likely will never know. Seems like operator error to me. I have gone down 10% grades in the Sierra with mine and have had ZERO issues like he experienced.

On the Ford F-150 blog site I am on, there is no complaint similar to what the OP is experiencing either.
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Old 07-23-2019, 09:33 PM   #103
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Originally Posted by babock View Post
There is a mode on this 10 speed transmission(I own the exact same year model truck, engine and transmission) where you can limit the gear that the transmission can upshift to. Who knows if he had that selected when all this was happening.

We likely will never know. Seems like operator error to me. I have gone down 10% grades in the Sierra with mine and have had ZERO issues like he experienced.

On the Ford F-150 blog site I am on, there is no complaint similar to what the OP is experiencing either.
That would be impossible as it wouldn't respond until it got under 25mph in what I would assume would be 1st gear. He didn't startdown the hill in 1st gear so it couldn't have been limited to 1st gear, that's just where it ended up and finally let go of control. If this isn't how it's supposed to work then the Ford dealer shouldn't have blown him off. The truck is broken then.
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Old 07-23-2019, 11:18 PM   #104
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You have an F-150 with a 10 speed transmission? Just so you know, in case you don't own one, you can tell it to limit it to a gear and it won't actually do that until you finally get into that gear. Then it won't shift up from that gear

To me, sounds like he was messing around trying to get it to shift differently. Doubt the truck is broken. Who knows what he did. My crystal ball is currently not working.


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Originally Posted by Hersbird View Post
That would be impossible as it wouldn't respond until it got under 25mph in what I would assume would be 1st gear. He didn't startdown the hill in 1st gear so it couldn't have been limited to 1st gear, that's just where it ended up and finally let go of control. If this isn't how it's supposed to work then the Ford dealer shouldn't have blown him off. The truck is broken then.
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Old 07-24-2019, 01:32 AM   #105
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Originally Posted by 5picker View Post
This thread is so full of misinformation it should be deleted.
Geez...
Different folks respond in different ways and the alarm I'm reading in this thread seems to be in response to the OP. My F150 will do the same thing and I want it to for emergency stopping situations. I learned how to make it behave with practice. Maybe the OP
will too.
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Old 07-24-2019, 07:40 AM   #106
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Originally Posted by babock View Post
You have an F-150 with a 10 speed transmission? Just so you know, in case you don't own one, you can tell it to limit it to a gear and it won't actually do that until you finally get into that gear. Then it won't shift up from that gear

To me, sounds like he was messing around trying to get it to shift differently. Doubt the truck is broken. Who knows what he did. My crystal ball is currently not working.
Except it didn't get into first gear and then hold first, it went into 1st gear and then started acting normally again.

Now it seems we have others possibly chiming in saying this IS how it is supposed to work. Maybe, just maybe, there is something slightly off on the OP throttle position sensor that isn't allowing it to give the high input needed to kick it out of "I know better than you Mr. Driver" mode. I still vote not the best programming. Counter intuitive and instead of bashing the OP, thank him for getting the word out if everything is as normal.
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Old 07-24-2019, 09:42 PM   #107
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I have an 18 with the 10 speed. Based on his post, it sounds like he had unknowingly had it in Manual shifting or something is wrong with his transmission.

Using tow/haul, and locking out 9th and 10th when towing my travel trailer results in lower transmission temps, and a little better gas mileage on the highway. When you hit the brakes, it's going to downshift and get a little rev happy to help slow everything down.
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Old 07-26-2019, 02:05 AM   #108
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I have an 18 with the 10 speed. Based on his post, it sounds like he had unknowingly had it in Manual shifting or something is wrong with his transmission.

Using tow/haul, and locking out 9th and 10th when towing my travel trailer results in lower transmission temps, and a little better gas mileage on the highway. When you hit the brakes, it's going to downshift and get a little rev happy to help slow everything down.
Right! Mine downshifts further with longer or harder braking.
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Old 07-27-2019, 09:21 AM   #109
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Ford F-150 dangerous tow haul mode

Update: Ford F-150 2018 tow-haul mode is dangerous and Ford refuses to address problem. Problem: When you go downhill in tow haul mode there is a programmed downshift that slows the truck and trailer down to 25 mph. Going 25 mph on highway and interstate is an accident waiting to happen. The only way to get out of low gear is to toggle thru mud/snow, eco, sport and back to regular. Pressing the accelerator only redlines the truck. if you own a 2018 Ford F-150 Sport 3.5 eco boost with max tow, be aware. There is nothing about this problem in the Ford manual.
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Old 07-27-2019, 09:58 AM   #110
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All, refer to this thread for more history...



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Old 07-27-2019, 10:16 AM   #111
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Ah, full circle.
Guess all the OP can do now is hire a lawyer and a mechanic and try to convince them the problem is in the truck, not the driver.
Keep preaching the evils of the Ford 10 speed brother, the other manufacturers appreciate it
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Old 07-27-2019, 11:04 AM   #112
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This thread is being closed as it has run full circle back to an almost word-for-word re-post of the OP. Site rules encourage members to post issues and try to obtain help from our members but do not allow simply bashing a manufacturer or dealer because they did not resolve an issue to your satisfaction. Thank You to all those members who offered suggestions.

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