Transmission Clunk 3rd Gear

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armoredsaint

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i have the same issue also, it seems to hunt for the right gear and it clunks sometimes
 

Johnb21

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I don't believe so, they did not mention it. Why would it not do it in the other gears tho? They wanted to replace the driveshaft and inspect the rear dif, I asked them if either of those two were the problem, why didn't other gears, especially first gear do it? I hate things taken apart, they never go back together or seal quite like new. Will ask about the tc.

On a total side note, my dash warped a bit and I thought they could just replace this strip of trim but instead ordered in a whole new dash. Seats, dash, console...all has to be removed. I told them I would deal with the piece of trim and not have rattles and squeaks everywhere.

I have the warp dashboard thing too. Driver's side. Gonna just live with it for now.
 

Soliyou

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I don't believe so, they did not mention it. Why would it not do it in the other gears tho? .


In my 10 speed, the torque converter clutch locks in the 3rd gear and stays locked through next upshifts. I don’t recall getting it to lock in other gears.

this locking is supposed to be smooth like slipping the clutch on a manual transmission. However, sometimes I would feel it locking violently with a cluck Under hard acceleration when 3rd gear is selected manually.

try to shift manually and lock the transmission in the third gear, accelerate slowly and it should have very slow clutch engagement. Then do the same thing but accelerate harder and see if that makes a difference.
 

mhExped

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Old thread, I know. But, in case it's of use to anyone or anyone can explain why...Ever since I had the work done as noted in "Active Park Assist Disabled" thread for seemingly unrelated issue, the shifting is back to being smooth again.
 

rob4092xx

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I have the same issue but to a much lesser degree. No clunking sound, just a bump in shifting some times.
 

jmiller

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^^^Sounds like what mine did when a snap ring in the transmission came off. They rebuilt mine
This is exactly what took them 3 weeks to figure out when I took it in. After they supposedly fixed this issue at 9k miles my Expedition is back in the shop as we speak because something popped while driving this past weekend and transmission fluid started leaking all over the place. Had to get ford to tow this POS back to their location and we are now 4 days out and they still don't know whats wrong. Currently in the process of getting estimates to off load this thing before the it costs me a fortune. Kills me I've put 2gs into tires and powder coating wheels only to dump it.

PXL_20201205_212604686.jpg
 

5280tunage

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My Lord this is no bueno, so sorry for the issues. Hope this isn't another big issue as I know mine has done it maybe twice, but I generally chalk it up to something many trannies do. Since this rig and some of the GMs share the same tranny, has anyone seen similar biasues there.
 

myahr21

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Has anyone noticed a subtle hollow sounding transmission clunk when the Expy shifts into and out of 3rd gear? Also some times can be heard on the 6th to 7th gear shift or shifting from Drive to Reverse.

Yes! same issue. It happens most frequently when driving locally around our neighborhood. Clunk noise occurs between 15 - 10mph after a downshift from 4th to 3rd with moderate braking (coming to a stop at a stop sign). Ford replaced the valve body at 3,000 miles and that reduced the occurrence...but the issue has re-appeared and can be reproduced quite easily. I am going to have them check the drive shaft for a slip/stick issue next time it is in for service. Stats on my expedition are below. For those having this issue, do you have a 4x4, FX4, or MAX version?

2020 Expedition MAX
4x4 w/heavy tow package
FX4
 
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hellohithere

hellohithere

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Yes! same issue. It happens most frequently when driving locally around our neighborhood. Clunk noise occurs between 15 - 10mph after a downshift from 4th to 3rd with moderate braking (coming to a stop at a stop sign). Ford replaced the valve body at 3,000 miles and that reduced the occurrence...but the issue has re-appeared and can be reproduced quite easily. I am going to have them check the drive shaft for a slip/stick issue next time it is in for service. Stats on my expedition are below. For those having this issue, do you have a 4x4, FX4, or MAX version?

2020 Expedition MAX
4x4 w/heavy tow package
FX4

Please let us know if the dealership is able to sort it out! I have just gotten used to hearing it consistently clunk for now.

2018 Platinum
RWD and tow package
 

myahr21

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Please let us know if the dealership is able to sort it out! I have just gotten used to hearing it consistently clunk for now.

2018 Platinum
RWD and tow package

Yeah, I'll update once I have them take another look at it. On my expedition it's more about the noise, I am not feeling any harsh shifts. One additional thing worth noting...The issue hardly happens when I am in sport mode.
 

theoneneo

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It happens to me once in a while too, the clunk sound going into 4th gear and out of 4th gear. Mainly going out of 4th. This happens (clunk sound) more often on a sloped road.

2018 limited max 4x4 with towing package.


Sent from my iPhone using Tapatalk
 

AAOO

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Yes! same issue. It happens most frequently when driving locally around our neighborhood. Clunk noise occurs between 15 - 10mph after a downshift from 4th to 3rd with moderate braking (coming to a stop at a stop sign). Ford replaced the valve body at 3,000 miles and that reduced the occurrence...but the issue has re-appeared and can be reproduced quite easily. I am going to have them check the drive shaft for a slip/stick issue next time it is in for service. Stats on my expedition are below. For those having this issue, do you have a 4x4, FX4, or MAX version?

2020 Expedition MAX
4x4 w/heavy tow package
FX4

Mine does this exact same thing in almost the same exact spot on the road leading up to my house every time I drive it.

2018 Platinum
4x4 w/heavy tow pkg
 

bcb97

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Our 2020 is doing this also. When downshifting from 4 to 3, with moderate braking, it clunks. I did have the TSB done where they greased the slip yoke. The clunk that would happen with shifting from P to R is gone but I still hear the clunk when it downshifts. I do not really feel like taking it back in until I know there is a fix. It only has 12000 miles so we are good for a little while with the warranty.
 
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aggiegrad05

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I’ve had a clunky 3rd for a couple weeks now. Yesterday on the highway I hit the gas to pass and it slipped out of gear and hit the rev limiter. It took a second or two to find a gear. On the plus side, it actually seems to be behaving since. Haha

I’m sure I’ll have to take it in to get it looked at.
 

dsir56

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2020 XLT 2 wheel drive, hollow clunk when downshifting from 4th to 3rd. Any fixes found that I can tell my dealer about?
 

mhExped

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For the record, anyone following can ignore my Nov post about the steps involved in resolving "Active Park Assist Disabled" resolved the rough-shifting.

While it was indeed better for awhile, it ultimately turned rough again. In fact, it's happened a couple times now where I've had it in for other work and it comes back shifting smooth as new for a bit. My theory is that the dealer resets the computer so that it re-learn's the driver and it's smooth again, but only for awhile. Haven't yet inquired with the dealer if in fact they are doing such a reset, as it was only recently I came up with this idea.

Every time I have raised the rough shifting problem with the dealer, they tell me it's "normal" and there's no known fix. I inquire every time I go in, hoping that at some point enough complaints come in they get around to issuing a TSB and we can get a real fix in place for this.
 

bcb97

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For the record, anyone following can ignore my Nov post about the steps involved in resolving "Active Park Assist Disabled" resolved the rough-shifting.

While it was indeed better for awhile, it ultimately turned rough again. In fact, it's happened a couple times now where I've had it in for other work and it comes back shifting smooth as new for a bit. My theory is that the dealer resets the computer so that it re-learn's the driver and it's smooth again, but only for awhile. Haven't yet inquired with the dealer if in fact they are doing such a reset, as it was only recently I came up with this idea.

Every time I have raised the rough shifting problem with the dealer, they tell me it's "normal" and there's no known fix. I inquire every time I go in, hoping that at some point enough complaints come in they get around to issuing a TSB and we can get a real fix in place for this.

If you find out they are resetting the adaptive tables, then you can ask them to turn that feature off. Some dealers will do it, some won't. Some probably do not know how to but it can be done.
 

42pilot

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My 2020 limited does the same thing - clunk when downshifting from 4th to 3rd. I took it to the dealer this week and they reset the adaptive tables and it was butter until today. If I drive around town in sport mode, no clunk. I just got back from a 5,000 mile trip towing a travel trailer and did not have any clunking in tow/haul mode either. For such an expensive and great vehicle, you'd think this could have been addressed. Must have been a GM bug/joke planted....
 

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If you find out they are resetting the adaptive tables, then you can ask them to turn that feature off. Some dealers will do it, some won't. Some probably do not know how to but it can be done.
Do you know if it can be done in forscan?
 
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