When I shift, it grinds?

[DeeezNuuuts83]

Originally Posted by Gords_zenith

Only the the first three gears have triple syncros and are designed for "banging" gears but 4th, 5th, and 6th are only double, so like the other guy said, just slow down on shifting. You'll notice that the gears will go in a lot smoother with a lighter touch....do this even for the first 3 as well and your transmission will last for much longer time.

I was going to point out the syncros. That being said...

Originally Posted by iStanley

It does help if you slowly engage into 4th. I just thought it was made to quickly shift with no problem.

The car is indeed made to shift. But given a car's purpose and in what gears it will most likely see the most action, certain gears have more synchros than others to help make shifting as good as it can be.

Like Gords_zenith said, the first three gears have more syncros, since that's what most people will be in when driving competitively or spiritedly in conditions that require use of the steering wheel. For example, in an autocross, you likely won't go any higher than third gear in most cars. Some cars with a tall first gear and a lot of power throughout the rev range (like Corvettes) sometimes don't ever get out of first gear. Or for drifters, they're likely not going to be in fourth gear either when lighting up their tires.

[Norton 850]

Yes, to answer your question, many people have had problems with the Aisin manual gearbox that's in your car.

And many have had the gearbox replaced under warranty. Quite frankly the Aisin gearbox is not fit for purpose and should be fixed under warranty. Notably, Aisin makes hundreds of thousands of gearboxes for all sorts of vehicles, so they know how to make a quality gearbox. For some reason the box they supplied to Toyota and Subaru for the "twins" is by no means a quality product. If I were you I would take the car to the dealer and demand the gearbox be replaced under warranty.

[bjun]

I have the same problem. Everytime I shift from 3rd to 4th gear in high revs it grinds horribly. And in the long run, I know my gears going to break :/
You should get yours fixed under warranty while you still have it

[Calidrifter]

Next time it happens make a note of exactly where in the Rev band it happened. Not sure if you had the tech shift at the "high" rev you were talking about.

If he does it and no noise it's you.

It's probably going to be you 90% of the time on an MT.

[iStanley]

Originally Posted by Norton 850

Yes, to answer your question, many people have had problems with the Aisin manual gearbox that's in your car.

And many have had the gearbox replaced under warranty. Quite frankly the Aisin gearbox is not fit for purpose and should be fixed under warranty. Notably, Aisin makes hundreds of thousands of gearboxes for all sorts of vehicles, so they know how to make a quality gearbox. For some reason the box they supplied to Toyota and Subaru for the "twins" is by no means a quality product. If I were you I would take the car to the dealer and demand the gearbox be replaced under warranty.

Thank you for all the information. I will be taking it in to the dealership tomorrow. They say they will let it sit for an hour in order to get a somewhat cold start.

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[iStanley]

The rep and I test drove the BRZ (9k miles) and he agreed that it was a lot smoother. When he drove my frs (13k), I could of sworn it grinded but he said that it was just a bit notchy, and it was probably due to the previous owner. He also said it isn't a performance car and it could only go so far. He said he will order fluid and look at the magnet to see any brass or residue and that he'll order some shift thing to stop the rattling

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[shattered_memory]

I had the same exact problem. There's a problem with your transmission. I had to get my transmission replaced with an updated one. The tranny that the car comes with is garbage. The new tranny that I have now is ridiculously smooth now. Do whatever you can to get a brand new tranny. I was lucky to not have any issues with the dealer. I have a thread on the 2014 problems that gives some detail on the tranny issue I had. Hope this helps.

Also, when I had faulty tranny, it grinded into 4th gear at around 6,000 rpm. Make sure that the dealer tests the car when shifting at a higher rpm. They will not be able to feel the problem if they shift at a lower rpm.

[iStanley]

Originally Posted by shattered_memory

I had the same exact problem. There's a problem with your transmission. I had to get my transmission replaced with an updated one. The tranny that the car comes with is garbage. The new tranny that I have now is ridiculously smooth now. Do whatever you can to get a brand new tranny. I was lucky to not have any issues with the dealer. I have a thread on the 2014 problems that gives some detail on the tranny issue I had. Hope this helps.

Also, when I had faulty tranny, it grinded into 4th gear at around 6,000 rpm. Make sure that the dealer tests the car when shifting at a higher rpm. They will not be able to feel the problem if they shift at a lower rpm.

Thanks for your response! It's good to know that someone else had the exact problem. Just curious, what was the Toyota rep's steps? Like did he drive it and felt something which led him to change the fluids?

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[shattered_memory]

Originally Posted by iStanley

Thanks for your response! It's good to know that someone else had the exact problem. Just curious, what was the Toyota rep's steps? Like did he drive it and felt something which led him to change the fluids?

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What I did was make an appointment at the dealer for the problem I had. I was very specific with my issue (When driving onto the fwy, transmission grinds from 3rd to 4th when shifting at 6,000 rpm). The dealer took note of it and had a rep test drive the car. The rep immediately told me that there is a grind and that they will replace the whole transmission under warranty. They didn't waste my time with switching out fluids and what not. In general, fluids aren't going to fix an on going problem. Btw it was at a subaru dealer. Hopefully the toyota dealer will also be forgiving to you.

[iStanley]

Originally Posted by shattered_memory

What I did was make an appointment at the dealer for the problem I had. I was very specific with my issue (When driving onto the fwy, transmission grinds from 3rd to 4th when shifting at 6,000 rpm). The dealer took note of it and had a rep test drive the car. The rep immediately told me that there is a grind and that they will replace the whole transmission under warranty. They didn't waste my time with switching out fluids and what not. In general, fluids aren't going to fix an on going problem. Btw it was at a subaru dealer. Hopefully the toyota dealer will also be forgiving to you.

Oh I see, Subaru dealers seem to cut the bullshit haha. My rep said he will order fluid and change it out, as well as check my magnet to see for any shrapnel or brass. If there is any, he said that I will get a new tranny. On a side note, he said that he will also fix the shaking shift knob issue.

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[WNDSRFR]

No
DEMAND a new transmission. The car is under warranty and I had the same problem with 5th gear. Oil is not going to do it.


I had mine replaced and I think they upgraded it somewhere along the line because the new one has no issues at all.


My original trans clunked into 1st gear always (they say that's normal) it isn't.


So go to the dealer and DEMAND a new transmission.

[iStanley]

Originally Posted by WNDSRFR

No
DEMAND a new transmission. The car is under warranty and I had the same problem with 5th gear. Oil is not going to do it.


I had mine replaced and I think they upgraded it somewhere along the line because the new one has no issues at all.


My original trans clunked into 1st gear always (they say that's normal) it isn't.


So go to the dealer and DEMAND a new transmission.

They told me that they can't replace anything unless they find some brass on the magnet. They also told me that it's very rare for them to replace an entire transmission and that they will most likely replace a part or just the synchros. I'm hoping for a complete tranny though. My service advisor said he will be back on Tuesday or Wednesday. Even though he said he hopes they send a brand new transmission instead of fixing a part in the transmission, why do they seem so hesitant on giving me anything until I got really upset? By the way, he knew that it was my first manual.

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[mike the snake]

Originally Posted by iStanley

They told me that they can't replace anything unless they find some brass on the magnet. They also told me that it's very rare for them to replace an entire transmission and that they will most likely replace a part or just the synchros. I'm hoping for a complete tranny though. My service advisor said he will be back on Tuesday or Wednesday. Even though he said he hopes they send a brand new transmission instead of fixing a part in the transmission, why do they seem so hesitant on giving me anything until I got really upset? By the way, he knew that it was my first manual.

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They'll never find brass on the magnet, because brass is not magnetic.

[iStanley]

Originally Posted by mike the snake

They'll never find brass on the magnet, because brass is not magnetic.

That's what he said too, but he went in depth about a pipe I'd some sort and brass I think and finding shrapnel as well.

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