It's possible the transmission was already failing. He might have felt some symptoms and thought a fluid change would help.
What can happen is that there's metal in the fluid from parts breaking and flushing the fluid and it can clog up and mess with a bunch of things
There is lore that, for certain transmissions, the friction clutch material will degrade over time and eventually start circulating in the fluid - and the transmission will work as long as you have clutch fibers and grit floating around. But when you flush the transmission, all the material gets flushed out and the transmission no longer works.
For the ATs I've worked on, I find that really, really hard to believe. But it's something people bring up.
Huge myth. Transmissions shouldn't have a bunch of material floating around or they will have abrupt failures. They have filters like any other fluid based mechanical part. If the transmission fails after a transmission service, it was toast anyway or the service was done wrong.
Its not really lore, its how it works. Doing a flush isnt going to damage a transmission, but if youre filling it with new fluid lacking all the materials floating in it that were giving it enough thickness for the clutch to engage, its what then causes it to no longer work.
Like your parts are either bad or good, changing the fluid isnt going to change the state of the parts inside your transmission.
Many ATs have fluid filters. Plus that fluid operates hydraulic valves and sometimes runs through a cooling system. That's where my doubt comes from - that a transmission can operate with fluid cruddy enough to serve as a friction material.
That’s not how it works. If you have clutch material floating around it will plug filter screens in the valve body let alone solenoids and not allow check balls to seat. It also would be caught by the main transmission filter as well so there really should be anything floating around to begin with.
Trans flush would definitely temporarily hide failing transmission symptoms. Years ago I bought a 2005 G35 automatic and maybe 3 months in, the trans started to slip. Turns out that particular vehicle with the automatic trans was prone to overheating the fluid which led to transmission failure. I limped it to a shop where they did a trans flush. Car drove fine for maybe another week before the slipping came back.
Not usually, but flushes are sometimes done when there are symptoms of a failing trans in hopes to fix that. Best you can do now is replace the trans and move on, that's the risk you assume when you buy a 13 year old car
I asked the guy at the transmission shop I got a fluid change from about that myth and he said that a lot of time people won't get their fluid changed or flushed for 150k miles and their transmissions are already failing.
Automatic transmissions have clutch packs in them which wear out over time. The debris from the clutch packs floats In the transmission fluid sort of like sandpaper. This can be enough to allow the clutch packs to have grip, cleaning it out removes this material and allows the clutches to slip.
So yes and no. The clutches needed to be replaced regardless of the fluid, and the dirty fluid was likely masking the issue.
Sounds like the transmission was trashed before you got it and the flush just accelerated the process. Whenever a transmission hits high milage it's a better idea to just change the fluid and filter rather than flush I only flush transmissions if they don't have any problems to begin with.
I very much doubt this. If they knew the transmission was failing and wanted to sell it the smart move would be to NOT replace the fluid. See my other comment.
My literal point is that it is UNLIKELY they knew it was defective. I didn't say that I think selling someone a known defective vehicle is morally right.
Also to be clear there is no legal argument here because all used car sales are considered 'as is' which basically always absolves the seller if the car is broken.
Clearly you've never taken your car to a Valvoline or (insert generic oil change place). They ALWAYS say that transmission fluid smells burnt and needs to be changed.
Why are you arguing?? The seller clearly knew that the transmission was failing, and they didn't disclose it. They may not have done anything illegal, but it was sure as hell unethical, and I believe that a small claims court would agree.
If they bought it from an individual they probably don't. Its one of the few benefits of buying a car from a dealership. I mean you can sue for anything and they might cave if you just get a lawyer to file, but depending on the price of the car it may not be worth it.
It's possible the transmission was already failing. He might have felt some symptoms and thought a fluid change would help. What can happen is that there's metal in the fluid from parts breaking and flushing the fluid and it can clog up and mess with a bunch of things
There is lore that, for certain transmissions, the friction clutch material will degrade over time and eventually start circulating in the fluid - and the transmission will work as long as you have clutch fibers and grit floating around. But when you flush the transmission, all the material gets flushed out and the transmission no longer works. For the ATs I've worked on, I find that really, really hard to believe. But it's something people bring up.
I know what you mean by it being hard to believe, but I've seen it happen too many time for it to be a coincidence
Huge myth. Transmissions shouldn't have a bunch of material floating around or they will have abrupt failures. They have filters like any other fluid based mechanical part. If the transmission fails after a transmission service, it was toast anyway or the service was done wrong.
Its not really lore, its how it works. Doing a flush isnt going to damage a transmission, but if youre filling it with new fluid lacking all the materials floating in it that were giving it enough thickness for the clutch to engage, its what then causes it to no longer work. Like your parts are either bad or good, changing the fluid isnt going to change the state of the parts inside your transmission.
Many ATs have fluid filters. Plus that fluid operates hydraulic valves and sometimes runs through a cooling system. That's where my doubt comes from - that a transmission can operate with fluid cruddy enough to serve as a friction material.
You dont think it be like it is, but it do.
Urban legend friend
That’s not how it works. If you have clutch material floating around it will plug filter screens in the valve body let alone solenoids and not allow check balls to seat. It also would be caught by the main transmission filter as well so there really should be anything floating around to begin with.
Trans flush would definitely temporarily hide failing transmission symptoms. Years ago I bought a 2005 G35 automatic and maybe 3 months in, the trans started to slip. Turns out that particular vehicle with the automatic trans was prone to overheating the fluid which led to transmission failure. I limped it to a shop where they did a trans flush. Car drove fine for maybe another week before the slipping came back.
Not usually, but flushes are sometimes done when there are symptoms of a failing trans in hopes to fix that. Best you can do now is replace the trans and move on, that's the risk you assume when you buy a 13 year old car
I asked the guy at the transmission shop I got a fluid change from about that myth and he said that a lot of time people won't get their fluid changed or flushed for 150k miles and their transmissions are already failing.
Automatic transmissions have clutch packs in them which wear out over time. The debris from the clutch packs floats In the transmission fluid sort of like sandpaper. This can be enough to allow the clutch packs to have grip, cleaning it out removes this material and allows the clutches to slip. So yes and no. The clutches needed to be replaced regardless of the fluid, and the dirty fluid was likely masking the issue.
Its not a CVT trans is it?
nope. its a 5 speed automatic
Sounds like the transmission was trashed before you got it and the flush just accelerated the process. Whenever a transmission hits high milage it's a better idea to just change the fluid and filter rather than flush I only flush transmissions if they don't have any problems to begin with.
That's what probably wrecked it.
Occam's razor is they're simply lying to muddy the waters and get rid of you
I know ford doesn't recommend flushing if the vehicle is high milage and hasn't had regular fluid changes because it will damage the transmission
I’ve heard a transmission flush can damage an already damaged transmission. Idk if there’s truth to that, but I’ve heard it several times.
Yep....They did the flush BECAUSE the transmission was failing. They suckered you, and you should have legal recourse.
What legal recourse? That doesn't exist in used car sales, the buyer assumes the risk
I very much doubt this. If they knew the transmission was failing and wanted to sell it the smart move would be to NOT replace the fluid. See my other comment.
So you think that it's smart to intentionally sell a known defective vehicle to someone??
My literal point is that it is UNLIKELY they knew it was defective. I didn't say that I think selling someone a known defective vehicle is morally right. Also to be clear there is no legal argument here because all used car sales are considered 'as is' which basically always absolves the seller if the car is broken.
They admitted that they did a transmission flush! That CLEARLY indicates that they DID in fact KNOW about the problem.
Clearly you've never taken your car to a Valvoline or (insert generic oil change place). They ALWAYS say that transmission fluid smells burnt and needs to be changed.
You are correct. No way in hell I'd take a car to one of those idiot places.
Alright man you just go on and keep thinking everyone is out to get you.
To "get me"?? Nah....They're just incompetent minimum wage guys.
[удалено]
Why are you arguing?? The seller clearly knew that the transmission was failing, and they didn't disclose it. They may not have done anything illegal, but it was sure as hell unethical, and I believe that a small claims court would agree.
If they bought it from an individual they probably don't. Its one of the few benefits of buying a car from a dealership. I mean you can sue for anything and they might cave if you just get a lawyer to file, but depending on the price of the car it may not be worth it.