Clutch Slip?

Chuck33079 · 03-28-2014, 07:29 PM

Quote:

Originally Posted by tlr3715

I've been noticing when I have the car in third gear or less (manual Nismo) and press the gas hard the revs go up and down and the car shakes for a second. I thought this was the TCS at first as the traction light will often come on but I tried this with the TCS off and it still does it. Its a shake similar to when you release the clutch too quickly as if the clutch were bouncing. It this normal for this car or do I have a clutch issue?

At what rpm does this happen? To see if the clutch is slipping, put it in 5th and floor it at low rpm. If the rpm shot up without corresponding acceleration, the clutch is on its way out.

tlr3715 · 03-28-2014, 09:03 PM

The car has less than 13000 miles, but it did this since it was new. If I floor it in a higher gear it accelerates normally. I would say it happens at about 3000 RPM and higher. If I'm just maintaining speed in third at 3000 RPM and step on the gas the car will shake back and forth two or three times then accelerate normally. If TCS is activated the traction light will also come on, but the tires are not slipping in most cases. Literally feels like how the clutch bounces for a bit if you take your foot off quickly at the wrong RPM while things syncs up in the transmission. Which from what I understand has to do with additional guide spring in the clutch mechanism. Almost feels like the sudden torque is causing the clutch to skip a few times like a stone along pond water.

jcosta79 · 03-28-2014, 09:36 PM

Quote:

Originally Posted by tlr3715

The car has less than 13000 miles, but it did this since it was new. If I floor it in a higher gear it accelerates normally. I would say it happens at about 3000 RPM and higher. If I'm just maintaining speed in third at 3000 RPM and step on the gas the car will shake back and forth two or three times then accelerate normally. If TCS is activated the traction light will also come on, but the tires are not slipping in most cases. Literally feels like how the clutch bounces for a bit if you take your foot off quickly at the wrong RPM while things syncs up in the transmission. Which from what I understand has to do with additional guide spring in the clutch mechanism. Almost feels like the sudden torque is causing the clutch to skip a few times like a stone along pond water.

I think you have something else going on. A slipping clutch doesn't shake the car. Almost sounds like a bad misfire or bad motor mounts. Anything driveline related would happen at all engine speeds, not just 3000 rpm as your car is doing. Have you owned the car since new? Have you done any mods, been in any accidents, or had any major service at any time? Has the car ever been in a flood or suffered any other type of damage? Are you throwing any CEL lights when this happens?

Sent from my Nexus 7 using Tapatalk

tlr3715 · 03-28-2014, 09:59 PM

Yes I have had it since new. There have been no accidents floods or mods done to the car. I really don't think it is an engine issue. It's literally the same shake you get when you let out the clutch at the wrong time. That springy back and forth motion every manual 370Z driver feels on a regular basis that did not remove their clutch pedal guide spring.

03-28-2014, 09:03 PM	#2 (permalink)
tlr3715 Base Member Join Date: Aug 2013 Location: NJ Posts: 35 Drives: 2013 370Z Nismo Rep Power: 12	The car has less than 13000 miles, but it did this since it was new. If I floor it in a higher gear it accelerates normally. I would say it happens at about 3000 RPM and higher. If I'm just maintaining speed in third at 3000 RPM and step on the gas the car will shake back and forth two or three times then accelerate normally. If TCS is activated the traction light will also come on, but the tires are not slipping in most cases. Literally feels like how the clutch bounces for a bit if you take your foot off quickly at the wrong RPM while things syncs up in the transmission. Which from what I understand has to do with additional guide spring in the clutch mechanism. Almost feels like the sudden torque is causing the clutch to skip a few times like a stone along pond water. Last edited by tlr3715; 03-28-2014 at 09:12 PM.

03-28-2014, 09:59 PM	#4 (permalink)
tlr3715 Base Member Join Date: Aug 2013 Location: NJ Posts: 35 Drives: 2013 370Z Nismo Rep Power: 12	Yes I have had it since new. There have been no accidents floods or mods done to the car. I really don't think it is an engine issue. It's literally the same shake you get when you let out the clutch at the wrong time. That springy back and forth motion every manual 370Z driver feels on a regular basis that did not remove their clutch pedal guide spring. Last edited by tlr3715; 03-28-2014 at 10:01 PM.

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