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Trans whine?
This is my first cold season with my car since I bought it in August. I've noticed with this colder weather that the crickets are gone but I get this horrible, what seems to be, transmission whine. Is this from the trans being cold? I haven't heard this before but damn does it annoy the hell out of me. I also have the dreaded throwout bearing rattle every morning as well. Was thinking about bringing it down to the dealer to see if I could get it warrantied before it's up in 2k miles.
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:popcorn: |
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Oh. and don't you mean quit? http://xspblog.files.wordpress.com/2...uite.jpg?w=510 |
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http://www.quickmeme.com/img/a2/a2e2...3f37539d0d.jpg |
But yes take it to the dealer it can't hurt even if they say no
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So, I agree, it may be worth a trip to the dealer. humfrz |
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I will probably call up the dealer today after work and see if I can bring it in this weekend. |
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I never had throwout bearing rattle when the car was cold.
And I drove it for an entire Alaskan winter, my coldest cold start was -45 F Throwout bearing rattle is not normal |
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Okay I am done haha! Let us know what the dealer says
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Funny this thread should be at the top today, as I came here to ask a related question:
Has anyone here experienced a failure of the input shaft bearing? I'm by no means an expert on transmission issues, or parts in general, but over the past month or two I started noticing a distinct whine while accelerating in gear, that appeared to be tied to engine RPMs. At first I thought maybe I was imagining things, or that - this being a light-weight sports car with minimal sound deadening - I was just hearing standard transmission whine and it was normal for this car. However, this weekend I noticed it even more than normal. The noise is a very distinct whine. It goes away when I PUSH IN the clutch, and comes back when I release it, and I can definitely hear the whine "spin up" when I release the clutch. It as if I can hear exactly what the input shaft is doing. I hear it in neutral, and I hear it in every gear. The whine is even loud enough that I can hear the input shaft drastically slow down when I move the shifter from 1st to 2nd while driving, for example. I looked up input shaft noise videos on YouTube, but they all have HORRIBLE mechanical sounds as if the transmission has grenaded. Mine is just a very smooth whine that is present, but not particularly loud. Only loud enough to be heard. It also comes and goes, though it is mostly always audible, but it isn't particularly alarming. I bet almost nobody who wasn't a car person would even have noticed the sound yet. Is this a common issue? I've seen some posts on other forums for other vehicles where entire transmissions were replaced when this part went bad. Is it a complex job to repair? I can't seem to find ANYONE with this issue on the FT86 forums. Only throw-out bearing issues. I'm running AMSOIL in the transmission, by the way, and have been for about 6 months now. |
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It usually goes bad if something else went haywire in the transmission first. Yes, it's a bugger to replace; it seems that when they build a MT, they start with that bearing and build the rest of the transmission around it .....;) Unless it's totally shot, about the only way to tell if it's bad, is to totally dissemble the transmission. humfrz |
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Since my car is about 15,000 miles and your car is with 22,000 miles ...... I suggest the following. You drop your transmission and completely dissemble it. Buy a new transmission and dissemble it. Compare the two part by part, by visual inspection and measurements. (take lots of pictures) Take all the worn parts from the old transmission and stick them into the case of the new transmission. Return the "new" transmission to the dealer and tell them it didn't fit ..... you didn't realize you had an auto. Your observations will be of great service to this forum ........ and I will know when to expect to trade my car in. What do you think, gang ??....... :thumbsup: humfrz |
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I also hear a very faint whine, but very faint. My exhaust is loud so that makes it harder to hear haha. However, I'm at 54k miles and my throwout bearing is loud as f**k. Took it to the dealer last month and of course I couldn't replicate it to them :| But it squeaks everytime I step on the clutch lol.
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from neutral to in-gear, there will be a spin-up noise if you have bearing or synchro issues. The only time the input shaft will "spin up" is going from an extended roll in neutral to being in-gear, or rolling from a dead stop. Otherwise, it will always be spinning. If there is a "spin up" noise from clutch-in to clutch-out regardless of whether you are in gear, I can explain that phenomenon based on a nearly seized throwout bearing, as it begins to spin in relation to the clutch fingers, dragging against them because the minimal preload is insufficient to keep a dying bearing spinning, but the preload is sufficient to create noise against the clutch fingers. That theory can be confirmed easily; pull the trans and look at the TOB. Otherwise, gear whine under load is usually not bearing related. It is usually related to gear alignment. If you have worn out some of the tolerances in the transmission under hard driving, whining will start to emerge. It is not necessarily a bad thing, as it doesn't necessarily indicate harm being done, just an increase in gear lash, or decrease in bearing preload. Problems of helical gears. Internal bearings going bad in a transmission don't whine. They sound like a blender full of nails. |
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In my case, I hear the whine when the car is sitting, clutch out, in neutral. I press the clutch, and the sound goes away. I release the clutch, and the sound "spins up" along with the input shaft. Also, when I shift from 1st to 2nd, the input shaft abruptly goes from spinning at 5k to spinning at 3k RPM. I can HEAR this in the form of that whine abruptly spinning down in a similar fashion as I push the gear shifter into second. Quote:
Also, if it's the latter, then that makes sense too, and I'd be totally okay with it if it's just a result of the transmission being "broken in", but as I said, I doubt it is a case of gear whine, as the sound appears to be independent of the actual gears in the transmission. |
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The experiment requires a "control" i.e. a NEW transmission. However, you bring up a good point ...... the experiment does need some replication ....... so, @Stang70Fastback @MisterSheep @HachiRo will you step up and offer to disassemble your transmissions for the experiment ...... ?? :clap: humfrz |
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I know they were selling an FRS engine for about 2 grand or something dirt cheap on the FB classifieds page in case anyone wants a backup. |
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It's a pity I can't actually listen to it and drive it a half-mile or so... Diagnosing over the internet is hard |
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humfrz |
New bearings in the freezer and heat up the transmission body in the stove.
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@Spartarus, the whine I describe follows engine speed both under load and under engine braking. The intensity is about the same no matter which gear. I hear it less in fourth gear and up because of the increase in road noise but it's there all the time. |
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Mrs. Ultra drove an auto RS-1 last weekend. I'm thinking we may visit the dealership and ask to test drive a new manual but I already know the result. Up until the holidays my trans made zero noise. |
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humfrz |
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When I'm changing gears, the input shaft is spinning at high speed with the shifter in 1st gear. I then depress the clutch pedal and shift into 2nd. During that period, the clutch is depressed, but I hear the sound because the input shaft is still spinning. And what I hear is the decrease in speed as it decelerates rapidly as I engage 2nd. Quote:
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Also, what you stated is exactly why I figured it must be input shaft related. Since all the gears in the transmission are always turning together, there is nothing in the transmission that rapidly decelerates when I shift from 1st to 2nd, or 2nd to 3rd, OTHER than the input shaft and its gear, since they have to match engine speed. So the fact that this whine does that seems to rule out everything except the input shaft, as far as I can figure. |
Instead of me making a thread about this, i thought id ask u guys.
First off what is the act that has taken place where a company must prove your modifications has caused the specific problem? Secondly, i have my car at the dealership currently for a weird transmission noise that began. They called me today saying they are haulting any further process and getting a toyota representative out there because of the modifications i had made to the vehicle. I have just an exhaust, stock header, lowering springs, arp studs, and wheels and thats it. I dont see the need to get a representative to look at my mods for a trans noise. |
They are going to void your warranty, prepare a lawyer. You need to be a stupid, well non-car guy
and try to ask how a pipe can ruin the trans or driving with a inch lower can ruin the trans, try not to smile when you done with the questions. |
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