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Engine, Exhaust, Transmission Discuss the FR-S | 86 | BRZ engine, exhaust and drivetrain. |
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01-21-2018, 12:15 AM | #1 |
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Transmittion noise 2017
My friends 2017 86 transmission noise happens at or above 3k rpm and gets louder as rpm increase. Vibration is felt in shifter and increases as rpms increase. Also at low speed 2-8mph a very geary sound comes from transmittion. Any suggestions on what it could be? He said when he took it in to toyota they could not find the cause and even looked at the bushings but did not find anything wrong. I did tell him to take it to another dealership. But figured I would reach out here first. I must admit I thought it was him until I drove it and felt and heard it my self. I知 stumped the car has 7k miles and is stock.
Please help thanks all! I posted his vid below |
01-21-2018, 12:54 AM | #2 | |
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DANG, I just don't know. I don't think the shifter is supposed to move around that much. You say the car is stock, but has it been fitted with a short shifter (maybe by the dealer) ..?? So, if you have an 86 and you drove it ...... that would eliminate pilot error. I reckon someone has checked to make sure the transmission is full of oil..?? I'm guessing something in the linkage is lose ...... humfrz |
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01-21-2018, 01:11 AM | #3 |
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Yes it completely stock no short shifter no mods noda. I did notice that I could also feel almost an what felt like an rotating lopsided feeling from the shifter. It had to be coming some where my guess from flywheel to transmission. He drive my car and then we road in his and then I drove so it is not driver. Only people that have touched the car is dealer. I even took off the shift knob and it was still there. Clutch felt normal he said it started one day and has gotten progressively louder so much radio or window dose not even help being open. Dealer is saying nothing wrong he told me that they put felt in shifter because it was the knob but that was bs and I proved it by removing it lol. That’s why I’m really stumped. Has any one come in to this long term more than 50k miles.
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01-21-2018, 01:19 AM | #4 | |
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The Following User Says Thank You to Zentec For This Useful Post: | humfrz (01-21-2018) |
01-21-2018, 01:20 AM | #5 | |
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@Ultramaroon will be along soon ...... he's our transmission aberration specialist ....... humfrz |
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The Following User Says Thank You to humfrz For This Useful Post: | Zentec (01-21-2018) |
01-21-2018, 01:28 AM | #6 | |
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01-21-2018, 01:38 AM | #7 |
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I'm sorry. Listened to the clip. No idea.
Does it correspond to engine speed, or vehicle speed? I know you said 3K but is that 3K in any gear? If you take it up to the speed where it vibrates, push in the clutch and coast, what happens? Can it be felt in the seat? Clutch pedal? NVM the low speed rumble for now. Probably nothing.
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01-21-2018, 01:40 AM | #8 |
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I'll summon up @Tcoat for you ....... there is an outside chance that even a relatively new TOB could be going bad and make the clutch/transmission unit wobble the shift lever, plus make noise .......
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01-21-2018, 01:57 AM | #9 |
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Is the exhaust completely stock? Know it may seem weird but a leak or loose section could create vibration and noise though the tranny case and shifter. The symptoms all fit. Most certainly not a TOB issue.
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01-21-2018, 02:17 AM | #10 | |
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The geary noise is like rrrr when driving at low speed and if you have your finger resting on the shifter and put a little pressure forward on the shifter when driving at low speed not only do you hear the geary noise but you can actually feel a push back in the shifter while moving almost like some thing is off center when traveling around in a circle. It actually comes around like the flywheel has an added weight on a section of it this is the only way I can discribe it. |
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01-21-2018, 02:23 AM | #11 |
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Car is 100% stock everything. I asked him when he took it in to the dealer to have them check the bushings and to make sure everything is tight even the hangers for the exhaust and by the transmission. Once again I have to take what they say. He has had it in like 5 different times. That is why I知 thinking change the dealer. I did check under the car my self and everything seems tight although it was on a ramp not lift.
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The Following User Says Thank You to Zentec For This Useful Post: | Tcoat (01-21-2018) |
01-21-2018, 02:28 AM | #12 | |
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Maybe a blown engine mount? Vibration with clutch disengaged eliminates everything from the transmission input shaft and rearward.
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01-21-2018, 02:40 AM | #13 | |
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When I had in in Neutal and reved it it would make the noise but definitely not as loud, my foot was off the clutch. I then put my foot on the clutch and engaged it, in neutral vibrates and noise when reved but the same level. But when moving it really gets loud and feed back gets to the level in the video. |
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01-21-2018, 02:46 AM | #14 | |
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* the flywheel is out of balance * the pressure plate is out of balance * the clutch disk is out of balance Question, when his engine is revved up (car standing still) does the engine in his car feel "rougher" than the engine in your car ..?? Has he ever "dropped the clutch hard" .. ?? Who else has a theory ...... humfrz |
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