2016 85k miles, transmission went out

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ManUpOrShutUp

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Who told you that?

I have a battery disconnect switch on mine that I routinely use when I drive my other vehicle to work and the Expy is not driven for a week or two.

The battery gets 100% disconnected regularly, to prevent parasitic drains. Zero problems thus far... I reconnect the negative cable when I'm ready to drive the Expy, start her up and it drives / shifts just fine.

Whenever the battery is disconnected, the vehicle has to relearn idle, fuel trims and shift strategy.

From the manual:

When the battery is disconnected or a new battery is installed, the
automatic transmission must relearn its shift strategy. As a result, the
transmission may have firm and/or soft shifts.
This operation is
considered normal and will not affect function or durability of the
transmission. Over time, the adaptive learning process will fully update
transmission operation.

To account for customer driving habits and conditions, your automatic
transmission electronically controls the shift quality by using an adaptive
learning strategy. The adaptive learning strategy is maintained by power
from the battery. When the battery is disconnected or a new battery is
installed, the transmission must relearn its adaptive strategy. Optimal
shifting will resume within a few hundred miles (kilometers) of
operation.
 

762mm

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^ Yep, even my '99 Explorer's tranny did that after a battery disconnect, but I would hardly call it "going nuts" to the point of the truck refusing to shift into gear.

All late 90's - onward cars and trucks with automatic transmissions have this feature to optimize fuel economy, nothing new there. It should not affect driveability unless something is wrong with the tranny, though.
 

762mm

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You don’t think the throttle body would throw codes?

‘there was no check engine light on


By the way, did you hear a whining sound (like an electric motor burning out) when in gear before the transmission stopped shifting? I had this happen on my old Explorer... it was whining in gear for a few months (drive and reverse), then one day completely stopped responding to engine output and felt like it was in neutral in all gears...

It turned out that the electric ATF pump gave up the ghost inside the transmission and no longer pumped fluid, which caused the transmission to act like it was in neutral when in gear (you'd give it gas and the truck would just sit there). It cost me about $1200 to have that replaced at a transmission shop, including the tow truck charge. The tranny needed to be removed from the truck in order to swap out that pump.

Once the pump was changed, the transmission was good as new again.
 

rjdelp7

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I own a 2011 Mustang GT, with a 6r80. The battery suddenly died and flat wouldn't start. I boosted it and it started. The transmission would not shift past 2nd and was banging gears hard. The car had only 3,100mi. I installed the new battery and it drove perfect. I can verify it shifts firm, very firm. My owners manual has the same warning, under 'battery'.
 

and0r

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You don’t think the throttle body would throw codes?

‘there was no check engine light on

Absolutely. The throttle body sensor is the device which "throws codes". The sensor itself may be operational, meaning the circuit is functioning (no short, or missing ground). Though the sensor itself can be reporting a valid, but incorrect reading, causing the transmission to "think" wrongly.
You have to understand what an input shaft actually is. This is a solid, geared unit. Only real failure can come from stripped teeth. This is highly unlikely on the Expedition, and is something which is very easy to detect once the transmission is pulled apart. So, the best advice here would be to actually inspect the old shaft. Make sure you see them taking it out, these scam artist mechanics these days are quite funny and will pull every dirty trick in the book. You have every right to see the part immediately after it's pulled.
 

JExpedition07

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I was told many transmission shops try to not diagnose broken in service transmissions anymore because it is safer to just sell a complete new transmission. They can be on the hook if they attempt to diagnose and fix a transmission and the new part doesn’t fix.
 
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CaptOchs

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That sucks. I had to replace a transmission for a Charger. I decided to go with a junkyard transmission primarily over cost. It was $650 and they pulled it. I could replace the transmission 3 times for the cost of a single remanufactured transmission. The junkyard transmission is a transmission that has never failed. The remanufactured transmission is a failed transmission that was been rebuilt. The junkyard one did come with a warranty too. I also bought custom transmission oil (QuantumBlue) blended with the correct modifiers and higher temperature tolerance. The older transmission was never as smooth as the new one.

So what caused the failure? We never figured that out. About 8-12 months prior I had taken it in for 100k maintenance. I did coolant and transmission oil change. They claimed they don't power-flush. They drop the pan and replace filter/fluid. I think they probably used the wrong fluids though. I can't prove it.
 
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5x10

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I went to see the dropped tranny

they just put it on the lift so it wasn’t fully disconnected
The mechanic is saying it broker in the transfer case or in the body of the tranny
I had to leave so I asked them to take a picture of the broker input shaft
He then said it might not appear broken as it might be broken in the body of the tyranny
 

762mm

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^ Anything is possible, even when unlikely. Sometimes a hard metal part can be manufactured with an air bubble inside and snap off like a twig under load.

I would still seek a second opinion though... just to be safe. Installing a $5k rebuilt transmission generates a lot of revenue for these guys, so they might be a wee bit "biased", lol...
 

TobyU

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That sucks. I had to replace a transmission for a Charger. I decided to go with a junkyard transmission primarily over cost. It was $650 and they pulled it. I could replace the transmission 3 times for the cost of a single remanufactured transmission. The junkyard transmission is a transmission that has never failed. The remanufactured transmission is a failed transmission that was been rebuilt. The junkyard one did come with a warranty too. I also bought custom transmission oil (QuantumBlue) blended with the correct modifiers and higher temperature tolerance. The older transmission was never as smooth as the new one.

So what caused the failure? We never figured that out. About 8-12 months prior I had taken it in for 100k maintenance. I did coolant and transmission oil change. They claimed they don't power-flush. They drop the pan and replace filter/fluid. I think they probably used the wrong fluids though. I can't prove it.
We can only keep on preaching to to the ones that won't listen. You could change it three or four times before you ended up spending the money they want to rebuild yours or put a new one in. So the odds are always in your favor putting a good used one in.
 

TobyU

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I went to see the dropped tranny

they just put it on the lift so it wasn’t fully disconnected
The mechanic is saying it broker in the transfer case or in the body of the tranny
I had to leave so I asked them to take a picture of the broker input shaft
He then said it might not appear broken as it might be broken in the body of the tyranny
They have been ripping people off showing them broken parts and crap for years. Transmission shops are a bunch of crooks. That's simply all there is to it. There might be a few honest guys out there but I doubt there is an entirely honest shop in existence. If you have over two people working at transmission shop it would be hard for both of them to be honest. Just the way it works. I don't know why but that's the way it is.
If an honest man starts working at a transmission shop he will either quit or become a crook in 9 months.. the other option is to have ethical dilemmas while he still there up until the point he gets fed up enough to quit but the end result is still the same.
Unfortunately they win once they do anything more than test drive and scan the codes. Once they start taking things apart you're in a predicament where you just can't win and 95 to 97% plus the people end up paying and doing whatever they recommend.
The only real way to save money is to stay away from transmission shops.
 

and0r

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I went to see the dropped tranny

they just put it on the lift so it wasn’t fully disconnected
The mechanic is saying it broker in the transfer case or in the body of the tranny
I had to leave so I asked them to take a picture of the broker input shaft
He then said it might not appear broken as it might be broken in the body of the tyranny

complete horseshit
look into hiring an attorney.
honestly, shops need to stop pulling this kind of shit. it's literal criminal fraud
 

ManUpOrShutUp

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I was told many transmission shops try to not diagnose broken in service transmissions anymore because it is safer to just sell a complete new transmission. They can be on the hook if they attempt to diagnose and fix a transmission and the new part doesn’t fix.

I imagine diagnostic costs are a factor also. The family that runs our local trans shop are friends of ours and I trust that they wouldn't try to fleece us on a new trans. Actually, I trust that they wouldn't fleece anyone else either as they're honest to the point of it costing them money. That said, they're not going to tear the whole thing apart at their own expense to diagnose a trans issue and they know no one is going to pay half a day's labor for them to do so either. So they run the typical diagnostics and base their recommendation on that. If one has the time and skill to do all the work on their own, I imagine many "unrepairable" transmissions would be repairable on the cheap.
 

bobmbx

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Its happened to me as well. My Explorer tranny was being goofy, but not all the time. Mostly in the summer. Had it 'diagnosed' by a brand-name tranny shop who declared it FUBAR, and for a mere $2000-$3000 I could be back on the road again. Hmmmm....

Had it diagnosed at a local friend of a friend sorta place. The guy comes out and says "your electrical connector was loose, letting condensation from your AC into the connection causing weird stuff. I tightened it up for ya....let me know if that doesn't work..no charge"
 

and0r

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I imagine diagnostic costs are a factor also. The family that runs our local trans shop are friends of ours and I trust that they wouldn't try to fleece us on a new trans. Actually, I trust that they wouldn't fleece anyone else either as they're honest to the point of it costing them money. That said, they're not going to tear the whole thing apart at their own expense to diagnose a trans issue and they know no one is going to pay half a day's labor for them to do so either. So they run the typical diagnostics and base their recommendation on that. If one has the time and skill to do all the work on their own, I imagine many "unrepairable" transmissions would be repairable on the cheap.

yeah, you are basically excusing cheap work.
no offense but at a specialist, you better expect proper diagnostic work. i mean really, "scanning for codes" and nothing else? get real. what do you consider as typical diagnostics?
 

Machete

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Input rod broke, need replacement transmission
5k

that’s what I get for buying a ford

Im no longer a fan of Ford but this crap isn’t isolated to just Ford. All vehicles from big 3 suck.
This is why I’m keeping my 1st gen w 200,*** miles. Next truck will be a Toyota.
All new cars/trucks suck.
Read the 4th gen threads if you want to feel better.
 

JExpedition07

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yeah, you are basically excusing cheap work.
no offense but at a specialist, you better expect proper diagnostic work. i mean really, "scanning for codes" and nothing else? get real. what do you consider as typical diagnostics?

It is what it is. They have a business to run and diagnosing the transmission and repairing the singled out faulty parts doesn't always fix it or make it new again. Selling a new transmission does make it new again, I don’t blame them. The customer has to pay for diagnosis and repair of the old trans and it may not be worth it, again a new transmission will be worth it. I just went thru this whole dilemma on my 6R75, I got a P0741 and no lockup from the TC. Being a college aged male when I got the $4,500 diagnosis of new transmission I told them that isn’t an option and that they need to do better. After supplying TSBs from Ford they narrowed it down to valve body parts and repaired it. It fixed mine, but for someone who has the funds for a new transmission on hand how would they feel if they spent $1,000 on old but in their case it was throwing good after bad? They wouldn’t be very happy.
 
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and0r

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It is what it is. They have a business to run and diagnosing the transmission and repairing the singled out faulty parts doesn't always fix it or make it new again. Selling a new transmission does make it new again, I don’t blame them. The customer has to pay for diagnosis and repair of the old trans and it may not be worth it, again a new transmission will be worth it. I just went thru this whole dilemma on my 6R75, I got a P0741 and no lockup from the TC. Being a college aged male when I got the $4,500 diagnosis of new transmission I told them that isn’t an option and that they need to do better. After supplying TSBs from Ford they narrowed it down to valve body parts and repaired it. It fixed mine, but for someone who has the funds for a new transmission how would they feel if they spent $1,000 like me but in their case it was throwing good after bad? They wouldn’t be very happy to spend that plus new money on top. If they just spend that 5 grand it’s fixed with warranty.

thats a really cool story, but in the case of the original poster of this topic, the transmission will not engage at all.
now what would you expect that to be?
 

JExpedition07

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thats a really cool story, but in the case of the original poster of this topic, the transmission will not engage at all.
now what would you expect that to be?

New Transmission Time, exactly what they are doing. Hence we don’t understand why you guys are blasting the shops diagnosis.
 

TobyU

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I imagine diagnostic costs are a factor also. The family that runs our local trans shop are friends of ours and I trust that they wouldn't try to fleece us on a new trans. Actually, I trust that they wouldn't fleece anyone else either as they're honest to the point of it costing them money. That said, they're not going to tear the whole thing apart at their own expense to diagnose a trans issue and they know no one is going to pay half a day's labor for them to do so either. So they run the typical diagnostics and base their recommendation on that. If one has the time and skill to do all the work on their own, I imagine many "unrepairable" transmissions would be repairable on the cheap.
In these rare cases where you can find people who are reputable and are trying to rip you off, the problem is people who can actually diagnose internal transmission problems and willing to repair them are non-existent today. All shops really know how to do is say you need a rebuild or we need to swap it out with another unit. That's where they make their money.
Anytime you go beyond just pulling the pan and maybe pulling the valve body you might as well pull the transmission since it'll be out anyways and you might as well rebuild it so they want all the money and the mark upthat make on parts.
There are plenty of dealer tsb's for things like TCC solenoid problems Etc that are easily fixed with just a part or two and minimal tear down but most all shops oh, whether they know it or not, and a lot of them don't even know, we'll simply say you need a rebuild. It's basically all they know how to do today.
 
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