Loud bang when shifting from first

FiftyFiv3 · 11-20-2015, 07:23 PM

Wasn't sure where to put this but I get a loud bang on the firewall or front under carriage when shifting from first to second at high rpms. It sounds like someone is punching my firewall. I know the 370z is noisy but is this normal?

2014 with 1500 miles, thanks.

Redglare · 11-20-2015, 07:33 PM

manual or auto?

FiftyFiv3 · 11-20-2015, 07:39 PM

Quote:

Originally Posted by Redglare

manual or auto?

Sorry manual

Zbrah · 11-20-2015, 07:45 PM

Dealer time!

FiftyFiv3 · 11-20-2015, 07:46 PM

Quote:

Originally Posted by Zbrah

Dealer time!

It only occurs when I'm driving aggressively like actually getting on it. Still not normal?

POS VETT · 11-20-2015, 08:05 PM

Tell them to check engine mounts.

FiftyFiv3 · 11-20-2015, 08:06 PM

Quote:

Originally Posted by POS VETT

Tell them to check engine mounts.

That's what it sounds like to me too I just know the drive train in this car tends to be noisy.

Rusty · 11-20-2015, 08:53 PM

When you shift. Are you side stepping the clutch pedal?

FiftyFiv3 · 11-20-2015, 08:55 PM

Quote:

Originally Posted by Rusty

When you shift. Are you side stepping the clutch pedal?

What do you mean

Billibob22 · 11-20-2015, 10:09 PM

Need to get on it as you hit the clutch.. I noticed this too.. Just figured out how to hit the gas and when to hit the clutch at the right time.. I dont get the noise anymore.. Hard to explain

jaedub · 11-21-2015, 01:37 AM

Are you sure you're pushing the clutch in all the way before shifting to 2nd? Maybe you're shifting gears mid way into your clutch. This can create a thud from your transmission. Your engagement from 1st gear to 2nd gear is probably out of sync when you're driving aggressively.

Take it easy and slow it down. Gas pedal off, press clutch all the way in, then shift.

Rusty · 11-21-2015, 05:26 AM

Quote:

Originally Posted by Rusty

When you shift. Are you side stepping the clutch pedal?

Quote:

Originally Posted by FiftyFiv3

What do you mean

That's when you push the clutch pedal to the floor, and then slip your foot to the side. The clutch pedal comes back up with a bang, because it's bouncing off of the stop.

onzedge · 11-21-2015, 05:31 AM

Quote:

Originally Posted by POS VETT

Tell them to check engine mounts.

FiftyFiv3 · 11-21-2015, 06:05 AM

Quote:

Originally Posted by Rusty

That's when you push the clutch pedal to the floor, and then slip your foot to the side. The clutch pedal comes back up with a bang, because it's bouncing off of the stop.

Unfortunately not the case, sure does seem like a motor mount issue.

SouthArk370Z · 11-21-2015, 06:14 AM

We used to check motor mounts by putting the engine under a load and then no load while someone watched the engine and mounts. If it moved more than usual, it was usually a mount. If you got "lucky" you could see the mount separate. Not sure if this would work with a modern car, but it should.

11-20-2015, 07:23 PM	#1 (permalink)
FiftyFiv3 Base Member Join Date: Aug 2015 Location: CT Posts: 77 Drives: 370z Rep Power: 9	Loud bang when shifting from first Wasn't sure where to put this but I get a loud bang on the firewall or front under carriage when shifting from first to second at high rpms. It sounds like someone is punching my firewall. I know the 370z is noisy but is this normal? 2014 with 1500 miles, thanks.

11-20-2015, 07:45 PM	#4 (permalink)
Zbrah A True Z Fanatic Join Date: May 2013 Location: The370Z.com Posts: 4,956 Drives: 370Z Rep Power: 5451	Dealer time! __________________

11-20-2015, 08:05 PM	#6 (permalink)
POS VETT Track Member Join Date: Apr 2015 Location: Columbus OH Posts: 612 Drives: Z34\|C4LT4\|C6Z06\|V25 Rep Power: 3366	Tell them to check engine mounts. onzedge and SouthArk370Z like this.

11-20-2015, 08:53 PM	#8 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 34,865 Drives: 2011 Nismo GM 6M Rep Power: 2684436	When you shift. Are you side stepping the clutch pedal? __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

11-20-2015, 10:09 PM	#10 (permalink)
Billibob22 Base Member Join Date: Jun 2015 Location: California Posts: 103 Drives: 40th Anniversary#365 Rep Power: 9	Need to get on it as you hit the clutch.. I noticed this too.. Just figured out how to hit the gas and when to hit the clutch at the right time.. I dont get the noise anymore.. Hard to explain __________________

11-20-2015, 07:33 PM	#2 (permalink)
Redglare Enthusiast Member Join Date: May 2012 Location: FL Posts: 387 Drives: C172 Skyhawk GIII Rep Power: 174	manual or auto?

11-21-2015, 01:37 AM	#11 (permalink)
jaedub Track Member Join Date: Aug 2010 Location: Los Angeles Posts: 906 Drives: 2010 Black 370Z MT Rep Power: 304	Are you sure you're pushing the clutch in all the way before shifting to 2nd? Maybe you're shifting gears mid way into your clutch. This can create a thud from your transmission. Your engagement from 1st gear to 2nd gear is probably out of sync when you're driving aggressively. Take it easy and slow it down. Gas pedal off, press clutch all the way in, then shift.

11-21-2015, 06:14 AM	#15 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324197	We used to check motor mounts by putting the engine under a load and then no load while someone watched the engine and mounts. If it moved more than usual, it was usually a mount. If you got "lucky" you could see the mount separate. Not sure if this would work with a modern car, but it should. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

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