Loud bang noise when I press in the clutch in 1st gear

SouthArk370Z · 05-09-2016, 01:48 PM

Why does this happen only in first? My only experience is with much older clutches (manual linkage, throwout bearing, &c) and I can't think of a reason the clunking would only happen in a certain gear.

cofo11 · 05-09-2016, 08:17 PM

Quote:

Originally Posted by SouthArk370Z

Why does this happen only in first? My only experience is with much older clutches (manual linkage, throwout bearing, &c) and I can't think of a reason the clunking would only happen in a certain gear.

The only thing I can come up, mine does it too, is that there is more, for lack of a better word, force in the system in the lower gear and the bang is to do with disconnecting that. It seems to do it more when coasting to a stop uphill in my case.

Sent from my SAMSUNG-SM-N915A using Tapatalk

nis350 · 05-09-2016, 08:25 PM

My car does that also and it is usually at low speed with the throttle off.

Your explanation seems reasonable.

Quote:

Originally Posted by cofo11

The only thing I can come up, mine does it too, is that there is more, for lack of a better word, force in the system in the lower gear and the bang is to do with disconnecting that. It seems to do it more when coasting to a stop uphill in my case.

Sent from my SAMSUNG-SM-N915A using Tapatalk

SouthArk370Z · 05-10-2016, 07:06 AM

Quote:

Originally Posted by cofo11

The only thing I can come up, mine does it too, is that there is more, for lack of a better word, force in the system in the lower gear and the bang is to do with disconnecting that. It seems to do it more when coasting to a stop uphill in my case. ...

hmmmmm That would lead me to believe that there is too much "slack" or "windup" somewhere - eg, engine/trans mounts. Might be fixable. YMMV

cofo11 · 05-10-2016, 08:05 AM

Quote:

Originally Posted by SouthArk370Z

hmmmmm That would lead me to believe that there is too much "slack" or "windup" somewhere - eg, engine/trans mounts. Might be fixable. YMMV

Sounds reasonable except the only feedback is through the clutch pedal, can't feel it with the other foot on the floor or in the seat. As for the bang and rattles, I'm almost certain the rattle is flywheel chatter so the bang could be just an extra loud "chatter". I've only had the car a month and it only has 5xk, bought it used, on it so I'm still feeling it out and learning it. Just trying to make an educated guess.

Sent from my SAMSUNG-SM-N915A using Tapatalk

05-09-2016, 01:48 PM	#1 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324199	Why does this happen only in first? My only experience is with much older clutches (manual linkage, throwout bearing, &c) and I can't think of a reason the clunking would only happen in a certain gear. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Loud bang when shifting from first	FiftyFiv3	Nissan 370Z General Discussions	16	11-22-2015 01:27 PM
Rattle noise!!! Not loud but loud enough to be annoying!!	Cam1379	Nissan 370Z General Discussions	2	12-16-2013 04:17 PM
My tranny or clutch makes a loud noise!	kentstuh	370Z Technical Service Bulletins (TSB) / Recalls	4	03-27-2013 03:49 PM
very loud clutch chatter when in first gear and i depress the clutch...	TheSnakeJake	Engine & Drivetrain	30	04-25-2010 12:07 AM
Top Gear Live press conference	AK370Z	The Lounge (Off Topic)	1	02-08-2009 03:50 AM