Transmission Hesitation and complete lack of initial transmission engagement despite DPFE change

[AzScorpion]

Hate to break the news to you, But Speed Queen has gone bad too! Back when Biden wanted to destroy what efficacy still existed in washing machines, we purchased a Speed Queen base mechanical model, as did my in-laws who got the recommendation from the local Mennonites (Amish who use modern amenities). Ours is still in the box in the garage, but my inlaws have had nothing but trouble from theirs. And repairs have been expensive.

Damn! Might as well go back to using a washboard down by the river.

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[TJC]

Damn! Might as well go back to using a washboard down by the river.

I have 3 of them in the attic, and a 12V pump (and hand pump that can replace the motor) that will pull water up from 300'. Hard to get along without water! If electricity goes off so does our well pump. I've got a Honda 7000 Genset, but gas could be an issue. We live just on the edge of Hurricane territory. Best to have contingency plans.

Best to have and not need than to need and not have.

 

[Dr. Zaius]

Damn! Might as well go back to using a washboard down by the river.

Nope.

Your detergent may endanger the spotted guppy.

 

[AzScorpion]

Nope.

Your detergent may endanger the spotted guppy.

lol. I laugh but it's so true. One project we were doing years ago (late 90's) had a small stream running through the entrance into the development. It was designed for a culvert which would've been fine but they made the builder stop construction because someone found a spotted salamander. It took them almost a year to research this and made the builder add a bridge (IIRC it was $100K for everything) over the stream. It was one of those streams that only ran when you had heavy downpours for days or a lot of snow melt. Never in all the years I worked there (or drove through there later) had I ever seen the water more than ankle deep at most!

 

[Dr. Zaius]

When I find an endangered species on my property it becomes TRULY endangered.

The three S response.

Shoot it
Shovel it
Shut up.

 

[V12 Verado]

Not rumors, they are having issues.

Seems like all manufacturers are having issues now.

Toyota had to recall basically ALL the new Tundras with the twin turbo V6 and replace the engine.

I was an outboard motor tech for 51 years. The Big Two when I retired were Mercury (US) and Yamaha (Japan) The difference I always saw was that, while the Japs had their fair share of screw-ups, at least they had a conscience. If they screwed up, they corrected the problem and were VERY generous with their warranty, sometimes going many years further than the advertised warranty. This seems to be the same difference with Toyota and Ford. At least Toyota WILL replace an engine or even an entire frame. This stupid transmission Ford is using seems to keep being made with no end to the problems even in sight. I am kind of surprised there hasn't been a class action lawsuit.

 

[Dr. Zaius]

...I am kind of surprised there hasn't been a class action lawsuit.

There are several class action suits on the 10R80 but they are so far being brought by ambulance chaser types.

The lawyers are who usually wins in a class action suit.

They get millions while the people who were affected get a check for $2.17.

 

[Joeycuc]

Update: new dealership finally had a transmission guy do a deep dive and he told me a I need a whole new transmission. 9k.

 

[Dereku]

Sorry, but YES, the DPFE ties into the transmission shift points, only not directly.
The MAPT sensor reading calculates the Engine Load, Engine Load determines shift points.

When EGR is flowing the MAPT sees the flow (Pressure Increases) a Live PID data monitor will be needed, I suspect a bad MAPT Sensor or a failure still resides in the EGR system, such as clogged tube.

This tie in, is why some have reported (misdiagnosed) and replaced the T-Convertor for shifting issues only to finally replace the DPFE.

I have posted a Ref: for normal PIDs to monitor in the following thread.
Post # 857

(1) Bucking/Surging Epidemic | Page 58 | 2019+ Ford Ranger and Raptor Forum (5th Generation) - Ranger5G.com

For the less smart crowd, DPFE impacts transmission performance via throttle issues. Causes jerking. Hell of a detailed response as always!

 

[DukeCanBuildit]

Seems like just about everything post 2020 is hit or miss now. Wait until you have to replace an appliance. It use to be fairly easy, just go with a top name brand but not anymore. Remember the Maytag man? He was the loneliest guy because their appliances were built to last but not now. They have some of the worst reviews. It's like gambling in Vegas you're just rolling the dice and hoping to get a good one out of the batch now.

An appliance tech I know said 60% of his business these days is warranty work. He claims the QA process has been scaled way back by the manufacturers as it’s more cost-effective for them to have it handled through the warranty stream with its certified technicians.

I don’t know how true that reason is but having that much warranty work says a lot about product reliability.

 

[DukeCanBuildit]

Damn! Might as well go back to using a washboard down by the river.

You could be neighbours with Chris Farley.

 

[Rrrr-Anger19]

The technology in dam near everything is nowhere as robust as years past. Never till just a few years ago did I have to keep such a watchful eye on my vehicle for equipment failures. Hell I wrench on my classic car waaay less than my 2019 Ranger. I do like my truck, don't get me wrong... but it needs so much attention and monitoring I have a bi-weekly routine to avoid problems like so many of you have experienced. I am extremely militant on fluid & filter changes as a precaution which seems to have been serving me well.

I drive pretty casual, but have been known to drop the hammer while rolling. I haven't done a burnout in probably 10 years Also lightly off-road on dirt and sand a few times in the 5 years I have owned this truck.

This is my first Ford product ever.

 

[TJC]

The technology in dam near everything is nowhere as robust as years past. Never till just a few years ago did I have to keep such a watchful eye on my vehicle for equipment failures. Hell I wrench on my classic car waaay less than my 2019 Ranger. I do like my truck, don't get me wrong... but it needs so much attention and monitoring I have a bi-weekly routine to avoid problems like so many of you have experienced. I am extremely militant on fluid & filter changes as a precaution which seems to have been serving me well.

I drive pretty casual, but have been known to drop the hammer while rolling. I haven't done a burnout in probably 10 years Also lightly off-road on dirt and sand a few times in the 5 years I have owned this truck.

This is my first Ford product ever.

Yep, I understand and do the same. I've spent more time hardening my 2020 Ranger in an effort to make it as reliable as my older vehicles. In fact, I've spent more $$ and time on my Ranger then I have on ALL my other vehicles combined. I'm not counting the rebuild from top to bottom of my 2005 Ranger where I literally replaced every major component of it as insurance, just in case the new Ranger fails the test of time.

My wife tells me to dump the 2020 and stick with the proven 2005 Ranger, but I have a couple of more things to try before I can cross that bridge.

I'm going to attempt to drop the transmission fluid temps to target of 150F-160F. I've found that it shifts best at those temps.

I will be adding an external transmission cooler that bypasses the Ford coolant controlled heater unit. This will eliminate the risk of engine coolant leaking into the transmission.

I will be isolating the existing cooler from the transmission and rerouting the coolant lines to bypass it. It will still be electrically active so a DTC won't be flagged, but both the fluid lines and coolant lines will be plugged.

I'm going to reprogram the transmission to raise shift points.... No more lugging. I may even exchange the existing solenoids with hardened reliable ones that are magnetically shielded. I've also noticed that most of the heat is generated in the torque converter, and there are aftermarket TC units that run much cooler.

The wife says just ditch the present transmission now and purchase a robust transmission built by 3rd party that specializes in 10R80 designs built to last 300K miles. I'm still mulling her last idea over. Part of me things I can salvage the Ford transmission... or at least try.. the new cooler could be transferable to the new transmission.

Anyway this is the route I'm considering.

I've already gone with a Tom Woods Driveshaft, hardened the fan cable bridge, installed a PPE Deep pan, and Fitzstick, installed Eibach shocks, not to mention my AMP Retractable Steps, and tuned the BMS system to optimize for battery longevity over mpg.

Other than the transmission, the truck is running pretty good. I found it to be a very good long distance cruiser.

 

[Msfitoy]

Anyone tried putting 2 or 3 DPFE together sequentially? Might get a 16 speed out of the tranny...

 

[Rrrr-Anger19]

Yep, I understand and do the same. I've spent more time hardening my 2020 Ranger in an effort to make it as reliable as my older vehicles. In fact, I've spent more $$ and time on my Ranger then I have on ALL my other vehicles combined. I'm not counting the rebuild from top to bottom of my 2005 Ranger where I literally replaced every major component of it as insurance, just in case the new Ranger fails the test of time.

My wife tells me to dump the 2020 and stick with the proven 2005 Ranger, but I have a couple of more things to try before I can cross that bridge.

I'm going to attempt to drop the transmission fluid temps to target of 150F-160F. I've found that it shifts best at those temps.

I will be adding an external transmission cooler that bypasses the Ford coolant controlled heater unit. This will eliminate the risk of engine coolant leaking into the transmission.

I will be isolating the existing cooler from the transmission and rerouting the coolant lines to bypass it. It will still be electrically active so a DTC won't be flagged, but both the fluid lines and coolant lines will be plugged.

I'm going to reprogram the transmission to raise shift points.... No more lugging. I may even exchange the existing solenoids with hardened reliable ones that are magnetically shielded. I've also noticed that most of the heat is generated in the torque converter, and there are aftermarket TC units that run much cooler.

The wife says just ditch the present transmission now and purchase a robust transmission built by 3rd party that specializes in 10R80 designs built to last 300K miles. I'm still mulling her last idea over. Part of me things I can salvage the Ford transmission... or at least try.. the new cooler could be transferable to the new transmission.

Anyway this is the route I'm considering.

I've already gone with a Tom Woods Driveshaft, hardened the fan cable bridge, installed a PPE Deep pan, and Fitzstick, installed Eibach shocks, not to mention my AMP Retractable Steps, and tuned the BMS system to optimize for battery longevity over mpg.

Other than the transmission, the truck is running pretty good. I found it to be a very good long distance cruiser.

Our trucks are nearly identical sans the steps... you have my attention on the trans cooler idea. I was thinking the same thing after installing my PPE pan... that Mercon LV is so thin it makes Kool Aid look like maple syrup! I freaked the first time I dropped the fluid thinking I had water contamination! I was scratching my head thinking how it this stuff not just evaporating under normal use???

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