Transmission - What Is "Normal"?

[Jerome10]

I've got 9,000 miles on my PB and it just isn't comfortable driving. I notice a lot of the downshift, and in the lower gears I get some surging/lurching, especially going from 1st-3rd. Only a couple of times has it hard shifted, it mainly just feels like it's not sure when to shift.
I dropped it off at the dealership yesterday, and they just called and said they aren't really able duplicate the issue, that they are going to try again but if nothing, they'll just be in touch with me to see if I have any issue later on. I honestly hate driving the truck. Anyone else had this and had any good way to get the dealership do anything? I get it if they can't duplicate it, but I don't see how they can't tell it shifts like crap.

Id say this is kinda my feeling with my PB too. Not really any “hard” shifts but yes surging and lurching. Not sure when to shift yeah kinda. Plus for me the dropping into some gears and the 6->5 downshift always felt.

see if you can ride with the tech. I know for my truck if you drive it harder it seems to do better. That just isn’t good for running hybrid and getting as much regen braking as possible.

But a tech who pushes it probably wouldn’t notice the issues.

my 23 PB just flipped 9k as well. I wouldn’t say I dislike driving it but it’s just always “there” with the shifting if that makes sense.

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[theonly_ern]

Id say this is kinda my feeling with my PB too. Not really any “hard” shifts but yes surging and lurching. Not sure when to shift yeah kinda. Plus for me the dropping into some gears and the 6->5 downshift always felt.

see if you can ride with the tech. I know for my truck if you drive it harder it seems to do better. That just isn’t good for running hybrid and getting as much regen braking as possible.

But a tech who pushes it probably wouldn’t notice the issues.

my 23 PB just flipped 9k as well. I wouldn’t say I dislike driving it but it’s just always “there” with the shifting if that makes sense.

Yeah that's what I'm going to do. They called today and said they still can't duplicate it. There is also a rattle in the door that I can't figure out (I've already fixed all the other typical door rattles) and there is no way it can't be heard. So I told them someone needs to ride with me, because even if they are going to still play ignorant to the shifting issues, there's no way to deny the rattle. I also got the PCM/Cat Converter recall notification today, so they are going to run that update before I pick it up, not sure if that will have any affect on all of this, I doubt it, but maybe so.
I'm to the point of strongly considering a livernois tune. Which ticks me off to try spending that much money to make a brand new truck drive well, but I can't keep driving it the way it is.

 

[HammaMan]

If you're having shifting issues, reset the adaptive shift tables, put it in sport mode and beat on it good for 100 miles or so during acceleration and let it learn that before going back to normal mode/driving.

 

[Samson16]

100% what Hamma said. Forget fuel economy for a bit and drive it like a race truck in sport mode. It’s a powerful machine that learns bad habits when driven like a golf cart all the time.

 

[jkpawn]

I just purchased a 2024 f150 3.5 eco boost in may and have taken it back 6 times to the dealer and they still can’t find anything wrong. When you you leave it overnight or let it set 4 hours or more for the first few minutes when you start driving under 30 mph it acts like it’s miss firing real bad. Then after it starts warming up and you reach about 40 mph it drives pretty good still miss fires every now and again it started when I first bought it i figured it needed to get broke in and after 4 months and 4000 miles it’s getting worst. I took it to two different garages to have them check it out since the dealer is no help and they both drove the truck and said they could feel the miss fires but there scanners would not work on my 2024 model so they told me to make the dealer figure it out since it’s new. So I purchased a new Autel scanner that shows 2024 but after hooking it up and not doing what it is advertised to do I called the company and talked to one of there techs I found out that Ford has not given a update for 2023 or 2024 as of today. Any one have any ideas

 

[Samson16]

No misfires. I have experienced what I will describe as rough idle on occasion. By rough I mean I actually noticed it was idling because normally I have to look at the RPM gauge to discern if the ICE is on.

 

[Jerome10]

I just purchased a 2024 f150 3.5 eco boost in may and have taken it back 6 times to the dealer and they still can’t find anything wrong. When you you leave it overnight or let it set 4 hours or more for the first few minutes when you start driving under 30 mph it acts like it’s miss firing real bad. Then after it starts warming up and you reach about 40 mph it drives pretty good still miss fires every now and again it started when I first bought it i figured it needed to get broke in and after 4 months and 4000 miles it’s getting worst. I took it to two different garages to have them check it out since the dealer is no help and they both drove the truck and said they could feel the miss fires but there scanners would not work on my 2024 model so they told me to make the dealer figure it out since it’s new. So I purchased a new Autel scanner that shows 2024 but after hooking it up and not doing what it is advertised to do I called the company and talked to one of there techs I found out that Ford has not given a update for 2023 or 2024 as of today. Any one have any ideas

This definitely doesn't seem like a transmission thing. I'll second what samson said I also sometimes can notice a lumpy idle. I think its pretty normal.

I saw that PCM recall too. Gonna have to look as to whether this applies to all trucks. Think if you had a certain TSB already performed it doesn't apply?

 

[Ford Motor Company]

I just purchased a 2024 f150 3.5 eco boost in may and have taken it back 6 times to the dealer and they still can’t find anything wrong. When you you leave it overnight or let it set 4 hours or more for the first few minutes when you start driving under 30 mph it acts like it’s miss firing real bad. Then after it starts warming up and you reach about 40 mph it drives pretty good still miss fires every now and again it started when I first bought it i figured it needed to get broke in and after 4 months and 4000 miles it’s getting worst. I took it to two different garages to have them check it out since the dealer is no help and they both drove the truck and said they could feel the miss fires but there scanners would not work on my 2024 model so they told me to make the dealer figure it out since it’s new. So I purchased a new Autel scanner that shows 2024 but after hooking it up and not doing what it is advertised to do I called the company and talked to one of there techs I found out that Ford has not given a update for 2023 or 2024 as of today. Any one have any ideas

Hi there, Jerry. Go ahead and send us a private message with your VIN and the name and location of your Ford dealer, and I’ll look into this concern with your F-150.

 

[freewayman]

Id say this is kinda my feeling with my PB too. Not really any “hard” shifts but yes surging and lurching. Not sure when to shift yeah kinda. Plus for me the dropping into some gears and the 6->5 downshift always felt.

see if you can ride with the tech. I know for my truck if you drive it harder it seems to do better. That just isn’t good for running hybrid and getting as much regen braking as possible.

But a tech who pushes it probably wouldn’t notice the issues.

my 23 PB just flipped 9k as well. I wouldn’t say I dislike driving it but it’s just always “there” with the shifting if that makes sense.

Old thread, but in case you were still having this issue, do you feel the 6-5 downshift on coast down (no brake/throttle)? Because I know in normal mode on that 6-5 downshift on coastdown, the torque converter will unlock as you downshift into 5th, that may be why you feel a "surge" forward. I believe this is normal behavior. At least on mine, I can tell the TC is unlocking in this situation, because the fuel economy gauge (when put into L/100km) will go from 0 fuel consumption, which indicates coasting with fuel shut off and torque converter locked, to basically idle fuel consumption with the TC unlocked.

 

[Jerome10]

Old thread, but in case you were still having this issue, do you feel the 6-5 downshift on coast down (no brake/throttle)? Because I know in normal mode on that 6-5 downshift on coastdown, the torque converter will unlock as you downshift into 5th, that may be why you feel a "surge" forward. I believe this is normal behavior. At least on mine, I can tell the TC is unlocking in this situation, because the fuel economy gauge (when put into L/100km) will go from 0 fuel consumption, which indicates coasting with fuel shut off and torque converter locked, to basically idle fuel consumption with the TC unlocked.

Yes, 100% get the surge on coast down from 6 -> 5. The surge or lurch will occur coasting or if I apply steady brake pressure.

If I apply ever-increasing brake pressure or just even a smidge of throttle, its generally smooth.

 

[RCSB]

2024 5.0 with 2000 miles. I feel no lunging, but get the occasional rough downshift from fourth to third. It whines a lot though.

 

[Gros Ventre]

I'm a fan of early oil and filter changes. These are hydraulic machines and a spec of dirt in the wrong place can cause problems. These specs of dirt can also migrate so symptoms can change...

 

[freewayman]

Yes, 100% get the surge on coast down from 6 -> 5. The surge or lurch will occur coasting or if I apply steady brake pressure.

If I apply ever-increasing brake pressure or just even a smidge of throttle, its generally smooth.

Yeah its normal then. I find the torque converter lockup strategy in the 10r80 is tuned for fuel economy and emissions first and foremost. Comfort is an afterthought unfortunately. Almost all the hard shifts, jerks, clunks, are when the transmission is shifting the the TC locked, or when it is locking/unlocking during transitions between braking, coasting, and throttle.

This is analogous to someone driving a manual, and releasing the clutch way too fast, and shifting in between with very little slip of the clutch. If it makes you feel better, your transmission and ATF will last longer because of this (less slip = less heat). It just feels less refined when driving in traffic.

Remember most older cars wouldn't lock the torque converter up until highway speeds, or at least 30mph or so. I find with light throttle, in normal mode, the TC likes to lock up as low as 15 mph on the 10r80 (I have 3.73 rear end). This makes it a very busy transmission around 3-4-5 gears where the TC is generally locking/unlocking. ideally for comfort the TC would be unlocked during these busy shifting schedules to soak up harshness on the drive line. The solution to this is aftermarket tuning.

 

[freewayman]

2024 5.0 with 2000 miles. I feel no lunging, but get the occasional rough downshift from fourth to third. It whines a lot though.

I experienced the rough 4-3 downshift for a while after resetting my adaptive tables. For me it was a clunk you could feel and/or hear. It went away after approximately 3000 miles of city driving. My theory is because the 10R80 likes to upshift early and hold higher gears as long as possible, at least in normal mode, when braking to a stop there's a lot of downshifts it has to do either 6-5-4-3-1, 6-5-3-1, 6-4-3-1, in addition to unlocking the TC usually going down into 3rd. As such, it takes a long time for it to learn and correctly predict which downshift strategy to use based on speed, driver input, not to mention choosing the correct line pressures based on slip targets.

The whining is normal as well unfortunately. This is due to the offset gear driven pump for the ATF. If it makes you feel better, my 10R80 sounds like its a Hellcat.. LOL

 

[freewayman]

I'm a fan of early oil and filter changes. These are hydraulic machines and a spec of dirt in the wrong place can cause problems. These specs of dirt can also migrate so symptoms can change...

If only it was more serviceable. At the dealer as well a fluid and filter change is typically over $500. I think the best compromise is to do a drain and fill yourself with a fluid transfer pump. Even if you don't change the filter at least you can get some fresh ULV in there..

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