Manual Trans. Thud when shifting

[Asharus]

thanks for taking the time to take it to the dealer and figure out what we've all known since day 1. it's good to hear it confirmed straight from the ford techs.

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[foghat]

My shifter rotational noise is annoying me even more that the thud is anymore. Dealers says it's normal. You can hear it loudest in second gear. Roll along about 30mph in second gear and pull the shifter slightly to the left. It makes this noise without pulling the shifter to the left but this amplifies the noise so you know what I mean. Mine is pretty darn loud. Try it and let me know if any of you hear it.

I do not hear anything at 30mph in 2nd. If I pull the shifter to left, then yes, I hear what you are talking about. But with no pull, no noise - at least nothing noticeable, I will listen even harder next time.

 

[BC]

So I took my car to Ford today. I described the thud to my service advisor and a transmission tech there. They both knew about this sound and have heard it in all the manual Mustangs, especially those equipped with performance packs due to the gearing (Not sure if they meant all Mustangs or just GTs). They said it was the synchronizers in the transmission making the sound which will be most pronounced from 1-2 and 2-3 shifts. They mentioned that I might also hear it when stopped with the clutch out, then pushing the clutch in and putting it into first. Also, I only have 500 miles on mine. They said that this seems to get a little better with break in.

I had the transmission guy drive my car with me just to make sure it was the thud they were referring to, which it was. He was also able to make the thud not as pronounced or completely go away by double clutching or by pushing the shifter into gear slower which backs up the explanation of the synchronizers.

Although yes, as predicted I was told this is normal, I didn't feel like I was brushed off. I don't think this is an actual problem in that it is not harmful to our transmissions. I think it's just a sound that wasn't damped quite enough during design and the acoustical properties of the cabin are amplifying it. I even asked about changing to Amsoil Synchromesh since they are an Amsoil dealer. I was told that it might help some with the sound but if there is an issue with the transmission that they couldn't guarantee that Ford would warranty it.

Although I know this is not an acceptable answer to some because they find the sound to be annoying, it doesn't really bother me. I even joked with my service advisor that the problem will go away once I add an aftermarket exhaust. He laughed and said Borla can fix thuds, rattles, squeaks, and buzzes.

Thanks for this info.
This is good to know that they consider it normal...(at least they say it does no harm.)
And you are exactly right about exhaust mods. I was thinking about this before even reading your post today because last night I put in an MRT H-Pipe (with stock exhaust still) and even that little bit of extra exhaust sound was masking the thud...I noticed it right away!

 

[Ruby305GT]

So I took my car to Ford today. I described the thud to my service advisor and a transmission tech there. They both knew about this sound and have heard it in all the manual Mustangs, especially those equipped with performance packs due to the gearing (Not sure if they meant all Mustangs or just GTs). They said it was the synchronizers in the transmission making the sound which will be most pronounced from 1-2 and 2-3 shifts. They mentioned that I might also hear it when stopped with the clutch out, then pushing the clutch in and putting it into first. Also, I only have 500 miles on mine. They said that this seems to get a little better with break in.

I had the transmission guy drive my car with me just to make sure it was the thud they were referring to, which it was. He was also able to make the thud not as pronounced or completely go away by double clutching or by pushing the shifter into gear slower which backs up the explanation of the synchronizers.

Although yes, as predicted I was told this is normal, I didn't feel like I was brushed off. I don't think this is an actual problem in that it is not harmful to our transmissions. I think it's just a sound that wasn't damped quite enough during design and the acoustical properties of the cabin are amplifying it. I even asked about changing to Amsoil Synchromesh since they are an Amsoil dealer. I was told that it might help some with the sound but if there is an issue with the transmission that they couldn't guarantee that Ford would warranty it.

Although I know this is not an acceptable answer to some because they find the sound to be annoying, it doesn't really bother me. I even joked with my service advisor that the problem will go away once I add an aftermarket exhaust. He laughed and said Borla can fix thuds, rattles, squeaks, and buzzes.

Thanks for the footwork brother. It's great they are saying it's the synchros, but how come its present only when my car warms up. When the car is cold before I jump in the highway I get no thud, no matter how fast or slow I put it into gear and no matter how many shifts from 1-2, 2-3 I do. Now, when warmed up, it's constant. Would changing the fluid cure this?


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[foghat]

Thanks for the footwork brother. It's great they are saying it's the synchros, but how come its present only when my car warms up. When the car is cold before I jump in the highway I get no thud, no matter how fast or slow I put it into gear and no matter how many shifts from 1-2, 2-3 I do. Now, when warmed up, it's constant. Would changing the fluid cure this?


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Weird, I am heading out in a bit for the first time today, I will pay more attention this time, but I am pretty sure I always have the thud.

Areopaul claims that a fluid change got rid of the thud for him. I am going to replace in a week or two and see what happens.

 

[Phlyguy]

So I took my car to Ford today. I described the thud to my service advisor and a transmission tech there. They both knew about this sound and have heard it in all the manual Mustangs, especially those equipped with performance packs due to the gearing (Not sure if they meant all Mustangs or just GTs). They said it was the synchronizers in the transmission making the sound which will be most pronounced from 1-2 and 2-3 shifts. They mentioned that I might also hear it when stopped with the clutch out, then pushing the clutch in and putting it into first. Also, I only have 500 miles on mine. They said that this seems to get a little better with break in.

I had the transmission guy drive my car with me just to make sure it was the thud they were referring to, which it was. He was also able to make the thud not as pronounced or completely go away by double clutching or by pushing the shifter into gear slower which backs up the explanation of the synchronizers.

Although yes, as predicted I was told this is normal, I didn't feel like I was brushed off. I don't think this is an actual problem in that it is not harmful to our transmissions. I think it's just a sound that wasn't damped quite enough during design and the acoustical properties of the cabin are amplifying it. I even asked about changing to Amsoil Synchromesh since they are an Amsoil dealer. I was told that it might help some with the sound but if there is an issue with the transmission that they couldn't guarantee that Ford would warranty it.

Although I know this is not an acceptable answer to some because they find the sound to be annoying, it doesn't really bother me. I even joked with my service advisor that the problem will go away once I add an aftermarket exhaust. He laughed and said Borla can fix thuds, rattles, squeaks, and buzzes.

Thank you for the information. When I was researching all the past and present nuances associated with the MT82 Chinese manufactured/German engineered (try that on for size) Getrag gearbox, both the Getrag Ford USA representative as well as a Getrag engineer advised that the early problems with the MT82 (synchronizers failing prematurely, gear tooth disintigration, hard shifting when cold, etc.) had pretty much been alleviated by overall better materials used in the manufacturing process, and better manufacturing Quality Control. Switching from the original Motorcraft heavier synchromesh ATF to the more lighter Dual Clutch Transmission Fluid (QDC) and adding a friction modifier/enhancer (XL-18) to the mix significantly reduced the hard shifts experienced by folks in cold(er) regions. Accordingly, Ford changed their Transmission Lubrication Charts to show that Motorcraft QDC and XL-18 were the only "recognized" lubricant for the MT82. According to the Ford Engineer, and as you stated, using any different product in the Gearbox does not necessarily void any warranty but there are no guarantees that Ford would HONOR any warranty work for the gearbox if it was discovered that one used any product not recognized by Ford...again, it becomes a roll of the dice unless your product has some sort of specification that states it is approved as an alternative to the factory recommended lubrication (FYI...the QDC is water thin)

 

[foghat]

Thanks for the footwork brother. It's great they are saying it's the synchros, but how come its present only when my car warms up. When the car is cold before I jump in the highway I get no thud, no matter how fast or slow I put it into gear and no matter how many shifts from 1-2, 2-3 I do. Now, when warmed up, it's constant. Would changing the fluid cure this?


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Weird, I am heading out in a bit for the first time today, I will pay more attention this time, but I am pretty sure I always have the thud.

Areopaul claims that a fluid change got rid of the thud for him. I am going to replace in a week or two and see what happens.

I definitely have the thud when tranny is cold.

 

[Cascadia_302]

So just throwing this out there for discussion.....for anyone that believes their transmission may have an internal problem and are going to do a fluid change if they ever thought about having a sample of the removed fluid analyzed?
And to be honest I really don't think this test is the answer to "the thud" or anything else specifically, it's just a diagnostic tool to be used in the same way medical testing is done. It's a cheap test and depending on the results could either rule out some concerns or provide other options to pursue.
Anyways the outcome shouldn't create more questions than answers.

I see that so far there are members that say their transmissions are (relatively) noise free and the shifting is smooth vs. the thud and/or other issues that many don't think of as being normal and should be addressed.
We then move on to the members claiming these "issues" are just part of the normal operation of the transmission.
(btw I'm not taking a side to any of this. Just trying to get a better understanding of what if anything is going on with the mt82 as I plan on buying a MY16' mustang).
So to those people I have to ask -are the people with the clunk free/smooth shifting transmissions the ones with a problem? ...apparently there are two interpretations of the term "normal" regarding the operation of the mt82.

 

[Ruby305GT]

So just throwing this out there for discussion.....for anyone that believes their transmission may have an internal problem and are going to do a fluid change if they ever thought about having a sample of the removed fluid analyzed?
And to be honest I really don't think this test is the answer to "the thud" or anything else specifically, it's just a diagnostic tool to be used in the same way medical testing is done. It's a cheap test and depending on the results could either rule out some concerns or provide other options to pursue.
Anyways the outcome shouldn't create more questions than answers.

I see that so far there are members that say their transmissions are (relatively) noise free and the shifting is smooth vs. the thud and/or other issues that many don't think of as being normal and should be addressed.
We then move on to the members claiming these "issues" are just part of the normal operation of the transmission.
(btw I'm not taking a side to any of this. Just trying to get a better understanding of what if anything is going on with the mt82 as I plan on buying a MY16' mustang).
So to those people I have to ask -are the people with the clunk free/smooth shifting transmissions the ones with a problem? ...apparently there are two interpretations of the term "normal" regarding the operation of the mt82.

Not a bad idea, I just don't have the time to do this. Plus now they are saying that changing the fluid may cause a denial in warranty service given anything else happens with the trans. I don't want a higher quality fluid to cause an issue with the transmission, I mean come on, that's obvious... Right?


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[Phlyguy]

This topic is like the theory of the Bermuda Triangle...actual unexplained phenomenon or just a series of unfortunate accidents (cue in Twilight Zone music)

 

[Ryan1112]

I'm still considering changing fluid to Amsoil or Royal Purple. I know when I start doing track days in the Florida heat that thin dual clutch fluid isn't going to hack it. Ford really should warranty at least up to synchromesh weight.

 

[Ruby305GT]

This topic is like the theory of the Bermuda Triangle...actual unexplained phenomenon or just a series of unfortunate accidents (cue in Twilight Zone music)

Lol! Good one.


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[Ruby305GT]

I'm still considering changing fluid to Amsoil or Royal Purple. I know when I start doing track days in the Florida heat that thin dual clutch fluid isn't going to hack it. Ford really should warranty at least up to synchromesh weight.

When you asked the service techs, were they serious about voided warranty work due to fluid changes?
This would mean that not using Motorcraft brand oil in the engine will void warranty work on my engine?

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[Chameleon]

This topic is like the theory of the Bermuda Triangle...actual unexplained phenomenon or just a series of unfortunate accidents (cue in Twilight Zone music)

What would John Locke think?


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[PortlandTate]

Ryan1112 - I did the Royal Purple Synchromax fluid swap on my manual trans today and hate to tell you but the thud is still there if you shift aggressively. I had someone tell me it is due to the sudden stop of the synchros when shifting that causes it, and it's normal. I dug around on some of the older mustang forums (2011 and up) with the same trans as ours and seems this is part and parcel for our MT82.

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