Synchros going bad? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Terruko · 07-20-2017, 06:39 PM

Sometimes when changing from 4th to 5th the shifter gets stuck and doesn't want to move, and when I force it it makes a loud grinding noise.

Are synchros considered wear items? I'll take it to the dealership tomorrow.

ggiddix · 07-20-2017, 06:41 PM

Quote:

Originally Posted by Terruko

Sometimes when changing from 4th to 5th the shifter gets stuck and doesn't want to move, and when I force it it makes a loud grinding noise.

Are synchros considered wear items? I'll take it to the dealership tomorrow.

Well it's not covered by warranty if that's what your asking

Sent from my XT1650 using Tapatalk

Terruko · 07-20-2017, 06:50 PM

Quote:

Originally Posted by ggiddix

Well it's not covered by warranty if that's what your asking

Sent from my XT1650 using Tapatalk

Doesn't it fall under powertrain warranty though? I have powertrain warranty until 100k miles.

ggiddix · 07-20-2017, 06:52 PM

If you can prove that it was defective then maybe, but they will just say you abused the clutch or grinded the gears and then won't cover it

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PetrolioBenzina · 07-20-2017, 07:30 PM

Quote:

Originally Posted by Terruko

Sometimes when changing from 4th to 5th the shifter gets stuck and doesn't want to move, and when I force it it makes a loud grinding noise.

Are synchros considered wear items? I'll take it to the dealership tomorrow.

I'd leave that part out when I explain the problem to the dealer.

Shinigami301 · 07-20-2017, 08:12 PM

Does it still do it when you double-clutch? Are you trying to power shift? Or speed-shift?

Terruko · 07-20-2017, 08:18 PM

Quote:

Originally Posted by Shinigami301

Does it still do it when you double-clutch? Are you trying to power shift?

Yeah and no, just normal driving. It doesn't happen all the time though, just every now and then, but today it happened when I went from 1th to 2nd, and sometimes it doesn't want to go on 1th either. I'm taking it to the dealership tomorrow because my frs has been making a rattle noise when I'm on first and under 1.5k rpms, it started after I got my TOB replaced.

gravitylover · 07-20-2017, 08:48 PM

^^ Sounds like something is misaligned. The clue is that it started after the tob was replaced. Hopefully that hasn't caused undue wear on other parts.

humfrz · 07-20-2017, 08:57 PM

I'll ask an obvious question ....... then refer you to @Ultramaroon

Do you have a short shifter installed .. ??

humfrz

Terruko · 07-20-2017, 10:01 PM

Quote:

Originally Posted by humfrz

I'll ask an obvious question ....... then refer you to @Ultramaroon

Do you have a short shifter installed .. ??

humfrz

No. Everything is stock on this car.

Teseo · 07-20-2017, 10:21 PM

Firs change fluid, drive for a while. Also at what rpms you are shifting?

humfrz · 07-20-2017, 10:28 PM

Quote:

Originally Posted by Teseo

Firs change fluid, drive for a while. Also at what rpms you are shifting?

Good point!

However, first off ...... check the fluid level to make sure the folks that installed the new TOB put oil back in the transmission........

humfrz

Ultramaroon · 07-20-2017, 10:56 PM

Quote:

Originally Posted by Terruko

Yeah and no, just normal driving. It doesn't happen all the time though, just every now and then, but today it happened when I went from 1th to 2nd, and sometimes it doesn't want to go on 1th either. I'm taking it to the dealership tomorrow because my frs has been making a rattle noise when I'm on first and under 1.5k rpms, it started after I got my TOB replaced.

***How many miles after your TOB replacement now?

Rattling noise at low RPM may or may not be normal. By itself I would say nothing wrong. Factory gear lube is super thick in an effort to keep it quiet.

If the transmission was under-filled That would make shifting more notchy and picky, especially after it gets hot.

I'm not an expert with dealer service interaction and I'm suspicious of other peoples' work. That said, If you have any intention of following up with a warranty claim, do... not... touch... anything.

Terruko · 07-20-2017, 11:11 PM

Quote:

Originally Posted by Teseo

Firs change fluid, drive for a while. Also at what rpms you are shifting?

2.8k-3k

07-20-2017, 06:39 PM	#1
Terruko Senior Member Join Date: Sep 2016 Drives: FR-S Location: US Posts: 120 Thanks: 55 Thanked 17 Times in 15 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Synchros going bad? Sometimes when changing from 4th to 5th the shifter gets stuck and doesn't want to move, and when I force it it makes a loud grinding noise. Are synchros considered wear items? I'll take it to the dealership tomorrow.

07-20-2017, 08:48 PM	#8
gravitylover Senior Member Join Date: Nov 2014 Drives: 2013 BRZ Premium 6MT White Location: SE NY Posts: 1,503 Thanks: 1,218 Thanked 669 Times in 474 Posts Mentioned: 7 Post(s) Tagged: 1 Thread(s)	^^ Sounds like something is misaligned. The clue is that it started after the tob was replaced. Hopefully that hasn't caused undue wear on other parts. __________________

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07-20-2017, 06:52 PM	#4
ggiddix Member Join Date: Aug 2014 Drives: scion frs Location: meriden ct Posts: 43 Thanks: 2 Thanked 6 Times in 4 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	If you can prove that it was defective then maybe, but they will just say you abused the clutch or grinded the gears and then won't cover it Sent from my XT1650 using Tapatalk

07-20-2017, 08:12 PM	#6
Shinigami301 Slow driver, fast biker. Join Date: Jun 2016 Drives: '16 86, '00 Celica GTS, Sportbikes Location: Usually in a 峠 Posts: 350 Thanks: 35 Thanked 306 Times in 168 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Does it still do it when you double-clutch? Are you trying to power shift? Or speed-shift?

07-20-2017, 08:57 PM	#9
humfrz Senior Member Join Date: May 2013 Drives: 2013 FR-S, white, MT Location: Puyallup, WA Posts: 30,409 Thanks: 29,794 Thanked 32,812 Times in 16,830 Posts Mentioned: 715 Post(s) Tagged: 2 Thread(s)	I'll ask an obvious question ....... then refer you to @Ultramaroon Do you have a short shifter installed .. ?? humfrz

07-20-2017, 10:21 PM	#11
Teseo Senior Member Join Date: Jun 2014 Drives: frs Location: Gunsai Posts: 4,951 Thanks: 7,463 Thanked 2,978 Times in 1,801 Posts Mentioned: 23 Post(s) Tagged: 2 Thread(s)	Firs change fluid, drive for a while. Also at what rpms you are shifting?

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