Rear end clunk when shifting? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

HuntingtonFRS · 08-06-2012, 09:28 PM

Do you guys get this too? It's not every shift but happens all day. You can feel it clunk in the rear when you shift.

Never mind. Found links

huertash · 08-06-2012, 10:51 PM

IM assuming is the LSD activating. I can hear it every time on first or 2nd gear. On my first service at the dealer I will ask!! I'll let you know

Tunz · 09-04-2012, 12:34 AM

I'm having the same problem now. Did you ever figure out what it was?

Turdinator · 09-04-2012, 01:35 AM

Under hard acceleration or just normal 3 - 4k shifting?

alrashwa · 09-04-2012, 01:37 AM

http://www.ft86club.com/forums/showpost.php?p=307855&postcount=8

Tunz · 09-04-2012, 02:23 AM

Quote:

Originally Posted by Turdinator

Under hard acceleration or just normal 3 - 4k shifting?

Both.

Quote:

Originally Posted by alrashwa

http://www.ft86club.com/forums/showpost.php?p=307855&postcount=8

That's another issue, but thanks. This is when up shifting to 2nd, 3rd, 4th, 5th, and 6th gear. I haven't really noticed it when down shifting though. It sounds like its coming from the differential.

Bristecom · 09-04-2012, 04:40 AM

Are you letting the clutch out aggressively?

tintumz22 · 09-04-2012, 11:06 AM

2nd the comment above.. Letting the clutch out aggressively makes that sound.. mechanical sounds I hear is just from 1st>2nd and little bit at 3rd.. above that all good..

Tunz · 09-04-2012, 01:38 PM

That could be it, but I never noticed it before and I haven't been driving the car any differently. I'll take it for a drive in a couple hours and see.

Nick Graves · 09-04-2012, 02:23 PM

Sometimes get it whilst engaging 1st whilst stationary.

Just a bit of driveshaft reaction - those acclimatised to FWD aren't used to such odd noises. The S2000 makes a few as well!

empower-auto · 09-04-2012, 02:24 PM

welcome to sports car

Tunz · 09-04-2012, 02:40 PM

Quote:

Originally Posted by Nick Graves

Sometimes get it whilst engaging 1st whilst stationary.

Just a bit of driveshaft reaction - those acclimatised to FWD aren't used to such odd noises. The S2000 makes a few as well!

I'm well aware of the "thud" when engaging 1st. This is a different issue though. This only started happening a few days ago and it only happens when upshifting.

Quote:

Originally Posted by empower-auto

welcome to sports car

My sti made quite a few noises as well. I'm only worried because this just started happening after 1,300 miles.

avholic · 09-05-2012, 12:57 AM

I have same issue. I don't get the thud while upshifting but get it when I release the clutch at 3rd, 4th & 5th. I realize the release/engagement point becomes more shallow on higher gears but I still get the clunk even if i release the clutch slowly. It only started recently (around 890 miles) and the behavior has been sporadic. I observed it gets worse on higher ambient temps. I think the gear/lsd oil they used is meant for cold weather, not the likes of AZ, TX. I read from another thread that these issues went away after replacing gear and lsd oil. Im thinking of doing the same but don't wanna give the dealer a reason to refuse me if and when I get the CEL.

Tunz · 09-05-2012, 01:09 AM

Quote:

Originally Posted by avholic

I have same issue. I don't get the thud while upshifting but get it when I release the clutch at 3rd, 4th & 5th.

That's what I'm getting. I guess I should have been more specific. I've heard the same thing about the oil. I'm dropping my car off at the dealership Thusday night so I should know what the problem is by Friday afternoon.

08-06-2012, 09:28 PM	#1
HuntingtonFRS Senior Member Join Date: Jul 2012 Drives: 2013 Scion FR-S in White Location: Fort Myers, FL Posts: 177 Thanks: 27 Thanked 52 Times in 27 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	Rear end clunk when shifting? Do you guys get this too? It's not every shift but happens all day. You can feel it clunk in the rear when you shift. Never mind. Found links

09-04-2012, 02:24 PM	#11
empower-auto Kouki-Monster Join Date: May 2012 Drives: 2013 Scion FR-S Location: Saskatoon, SK Posts: 1,137 Thanks: 11 Thanked 562 Times in 261 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	welcome to sports car __________________ Rich Anderson EMPOWER AUTO

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08-06-2012, 10:51 PM	#2
huertash Member Join Date: Jul 2012 Drives: KM4SH FRS Location: Puerto Rico Posts: 23 Thanks: 2 Thanked 4 Times in 3 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	IM assuming is the LSD activating. I can hear it every time on first or 2nd gear. On my first service at the dealer I will ask!! I'll let you know

09-04-2012, 12:34 AM	#3
Tunz Member Join Date: May 2012 Drives: WRB BRZ Limited Location: Santa Clarita, CA Posts: 91 Thanks: 11 Thanked 14 Times in 5 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I'm having the same problem now. Did you ever figure out what it was?

09-04-2012, 01:37 AM	#5
alrashwa Senior Member Join Date: Aug 2012 Drives: '12 370Z Monterey Blue Location: Washington Posts: 230 Thanks: 120 Thanked 60 Times in 42 Posts Mentioned: 6 Post(s) Tagged: 0 Thread(s)	http://www.ft86club.com/forums/showpost.php?p=307855&postcount=8

09-04-2012, 11:06 AM	#8
tintumz22 Senior Member Join Date: May 2012 Drives: 2013 Scion FR-S Toyota 86 Location: Bay Area Posts: 1,077 Thanks: 1,234 Thanked 312 Times in 195 Posts Mentioned: 14 Post(s) Tagged: 0 Thread(s)	2nd the comment above.. Letting the clutch out aggressively makes that sound.. mechanical sounds I hear is just from 1st>2nd and little bit at 3rd.. above that all good..

09-04-2012, 01:38 PM	#9
Tunz Member Join Date: May 2012 Drives: WRB BRZ Limited Location: Santa Clarita, CA Posts: 91 Thanks: 11 Thanked 14 Times in 5 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	That could be it, but I never noticed it before and I haven't been driving the car any differently. I'll take it for a drive in a couple hours and see.

09-04-2012, 02:23 PM	#10
Nick Graves Member Join Date: Aug 2012 Drives: GT Blue Hachi Roku, Pile of Hondas Location: Hertford UK Posts: 15 Thanks: 0 Thanked 4 Times in 4 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Sometimes get it whilst engaging 1st whilst stationary. Just a bit of driveshaft reaction - those acclimatised to FWD aren't used to such odd noises. The S2000 makes a few as well!

09-05-2012, 12:57 AM	#13
avholic Senior Member Join Date: Apr 2012 Drives: BRZ WRBL6MT Location: Earth Posts: 106 Thanks: 3 Thanked 91 Times in 18 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	I have same issue. I don't get the thud while upshifting but get it when I release the clutch at 3rd, 4th & 5th. I realize the release/engagement point becomes more shallow on higher gears but I still get the clunk even if i release the clutch slowly. It only started recently (around 890 miles) and the behavior has been sporadic. I observed it gets worse on higher ambient temps. I think the gear/lsd oil they used is meant for cold weather, not the likes of AZ, TX. I read from another thread that these issues went away after replacing gear and lsd oil. Im thinking of doing the same but don't wanna give the dealer a reason to refuse me if and when I get the CEL.

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