Manual Transmission Noise

So, the exact words from the tech were, "yes these transmissions make some noise, but both my senior service tech and I, think your vehicle is louder than it should be when downshifting into first".

So next step is to wait until the regional service rep comes in, as that dude is capable of higher level diagnosis for low frequency problems, like mine.

This is why I'm pretty fed up with guys telling me I don't know how to drive a manual. Like...son, Ive been driving manuals since before you were born! And I've been through something very similar to this before... So quit with the you're doing it wrong nonsense.

 

"The tech is wrong" You would have said the same thing about my last Jeep, that needed a new synchro because the last one was chipped along the ends with metal shavings in the transmission case. It is almost the exact same sound, and the exact same catch/stiffness when putting it into gear.

 

none of us on here have any incentive to steer you in the wrong direction. Despite your driving experience, you're relatively new to TW. Believe it or not, we try to look out for each other on here, especially the MT guys.

Good luck. Do let us know what you find out.

 

And I appreciate that you're trying to help. I really do, but this is not a normal noise. Probably doesn't come through on the video that well because of road noise, but it is odd to me the senior service tech and service manager, who have already called the regional service rep, and based on their conversations, merits his diagnosis.

You guys can root for me to pay a bunch of money, but it ain't happening. Diagnosis is free at my dealer. And a new transmission is as simple as getting an extended warranty.

 

Did you read what I wrote?

*Even with the clutch depressed*, just because the engine isn't locked to the transmission solidly doesn't mean power isn't being transferred from the engine at all, some rotation will be transferred through the resistance in the bearings and light touches between the pressure plate flywheel and disk semi-floating in-between, beyond that your transmission is always being turned by the wheels when coasting there's no "driveshaft clutch disengagement" and putting it into 1st while the trans is being turned by the wheels too fast is what's causing the noise and issues you're having and you're damaging the synchros by putting the transmission into 1st at too high of a wheel speed independent of the engine.

You've obviously never driven an old school transmission without synchros and I don't think you know as much as you think you do.


You said none of your other cars are like this; this isn't your other cars, it's a truck, with a kinda shitty truck transmission and you're using it improperly.

You have your answer from several experienced people here you just don't want to hear it so sorry but I can't help you with that part of things.

 

Simplified version:

It’s normal. Don’t shift into 1st unless you are stopped. Manuals aren’t supposed to be shifted into 1st going that fast. Hence the noises and all the resistance that you feel. This is how syncros work.

 

You guys are an echo chamber on here. Happens all the time with these threads. Like I said though, can't wait for you to eat crow when it's finally figured out by the regional service rep.

What's funny to me is that all the arm chair QBs who are so certain of their correctness, haven't even shared a video of their own, showing the same noise. Which is BS, just like everyone's expert opinion. Quit frickin arguing with me. I'm done with your wrong opinions. Just because there are several of you, doesn't make you correct. I have experienced something similar in my own, and validated opinions from certified Toyota tech's. So just stop already. You are wrong. And that's ok. What isn't ok, if l is for you to keep pushing your nonsense on me. Stop.

 

If we're wrong we're wrong. Good luck moving forward. Let us know what the actual fix ends up being.

 

You're wrong. Manuals can be downshifted and use the engine as a break. 100% ok to do that. Nothing wrong with it . I have 100s of thousands of miles in a manual, haven't had to even replace one because of my own driving habits on both autos and motorcycles. So just stop with your incorrect opinions.

 

I will. I'll share if I'm wrong too.

 

As a Certified Toyota Dealership Technician with several years of experience and a few ASE's including one in transmissions, 1st gear is too low for 20-25 even with the clutch in. You're hearing the synchro's. Drive it how you want, but if you don't want the noise, don't put it in gear. Easy.

 

My real problem with everyone jumping on the same opinion, is that 1, Toyota tech's have already ruled it out... And 2, more importantly, is you're creating bias, when what I would really like is unbiased opinions derived not by skimming through and agreeing with the crowd, but by someone with more knowledge that can see past the easy crowd sourced answer.

And look, if I had a history of f*ckin up transmissions, is probably agree with you, but I don't, because I'm a good driver. Not trying to be arrogant, I just am. I grew up with three sisters that torched 4 clutches by riding them. They were all older than me, and I paid attention when my pops lost his sh*t after the third one. I learned those lessons when I was young.

I've driven over 500,000 miles in the last 30 years...150,000 on manuals. So quit trying to convince me that my downshifting / driving is the problem. Not only does it run counter to 30 years of experience. It also contradicts the service manager and senior service tech at my dealer... And doesn't add up with a similar problem I've had with a Wrangler unlimited, which has a "truck" power train.

Again, I appreciate your opinions, but they aren't useful at this point... So unless you have other ideas, please don't repeat the disbunked shifting too early stuff. It's not helpful. Thanks.

 

How would that have worked for me with the last transmission that needed a new synchro?

 

I'm with you as well...my truck will "whine" if I try to cram it into 1st gear going 20mph+. It actually doesn't even want to go into 1st gear going that fast.

"Arm chair QB" must be your favorite saying...
I don't think anyone here "has a video of their own, showing the same noise" because NOBODY is literally jamming their truck into 1st gear going that fast!
If everyone here is wrong, why do you keep coming back to this thread?

Do you know the difference between "break" and "brake", two totally different definitions?. Manual transmissions 100% can be downshifted to use the engine as a BRAKE. But that is putting unnecessary & excessive stress on your 1st gear synchro. And if you deny that fact, I don't think anyone will be able to help you, including your "certified Toyota tech's".

Hope you have a lot of crow and eggs ready to feed everyone here! I like Cholula on mine.

By the way, 20mph is too fast to downshift into 1st gear.

 

I've driven over 225k+ miles in a manual just within the last 8 years. So by your logic, I know more than you by experience.

 

Congrats on catching an autocorrect misspelling. And I'm in here because this is my thread...so bugger off if you don't have anything valuable to add.

 

Well said.

 

That's fair. Still doesn't make you right though.

My point, that you failed to grasp, is that my experience, previous synchro failure, and toys techs all agree.

Whereas you guys are piling onto an opinion that was posted before the video was uploaded.

I'm not sure how many times I need to ask you to stop before you actually do. Clearly your opinion is wrong. That's ok. Again, what's not ok, is that you keep trying to convince me of something that's already been ruled out.

 

This is group think at it's finest. You guys are unbelievable. You've shared your opinions, now it's time to go. So someone with differing thoughts can share as well. That won't happen when all of you keep being antagonistic, after I've already shared enough information to show that your theory is incorrect.

No one else will want to engage when they see how you, as a group, are acting. Please stop. Thanks

 

wow, you are insufferable