Anyone having awful grinding sounds when making sharp turns?? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

dsmcfarland · 10-01-2012, 10:58 AM

I noticed the other day while going around a round about that I heard a grinding sound or scrape. Instantly I thought I hit something and screwed my front end. After looking it over there was no noticeable damages and I shrugged it off. Later that afternoon I heard it again on a sharp left turn. I immediately took it to the closest empty parking lot and did figure 8s and sure enough about every turn and a half I hear a grinding sound.

I took the car to the dealership to have it checked out and they heard it aswell and ordered replacement fluid for the stabletrack system. Just curious if anyone else has experienced it and what the dealerships have said or done to fix it?

She's a 2013 zl1 automatic for reference.

Stephen12ZL1 · 10-01-2012, 11:04 AM

sounds like the clutches in the rear "posi" unit. The clutches are very aggressive in the ZL1 and will moan and growl when making tight turns. The fluid swap should fix it. They must use a specific fluid for the ZL1.

dsmcfarland · 10-01-2012, 11:08 AM

That makes me feel better. It sounds like its coming from the front end but really hard to tell. Any issues diving it this way until I get the fluid swap?

JusticePete · 10-01-2012, 11:11 AM

The 5th Gen differential uses a GM slip additive. My guess is they are going to add more slip additive. I wouldn't spend the day at a road course or drag strip but see no reason why you can't drive normally.

SlingShot · 10-01-2012, 11:25 AM

I appreciate what you guys are saying about the rear end, but what does that have to do with stabiltrack. Also what fluid would the stabiltrack use that would need to be changed. I thought the stabiltrack worked off the brake system.

dsmcfarland · 10-01-2012, 12:39 PM

I just asked the dealership exactly what they were doing so I can clarify here. They are infact adding the gm LS gear oil. I must have heard wrong when they mentioned the stabletrack

Chevrolet Customer Svc · 10-01-2012, 01:59 PM

Quote:

Originally Posted by dsmcfarland

I noticed the other day while going around a round about that I heard a grinding sound or scrape. Instantly I thought I hit something and screwed my front end. After looking it over there was no noticeable damages and I shrugged it off. Later that afternoon I heard it again on a sharp left turn. I immediately took it to the closest empty parking lot and did figure 8s and sure enough about every turn and a half I hear a grinding sound.

I took the car to the dealership to have it checked out and they heard it aswell and ordered replacement fluid for the stabletrack system. Just curious if anyone else has experienced it and what the dealerships have said or done to fix it?

She's a 2013 zl1 automatic for reference.

Please let us know how the service goes. We are here at your convenience!

Brandon
Chevrolet Customer Service

JusticePete · 10-01-2012, 02:00 PM

Quote:

Originally Posted by Chevrolet Customer Svc

Please let us know how the service goes. We are here at your convenience!

Brandon
Chevrolet Customer Service

littlecammi · 10-01-2012, 02:18 PM

Quote:

Originally Posted by dsmcfarland

Anyone hearing awful grinding sounds when making sharp turns?

Yes, but not coming from the car. I just figured its because I'm getting older.

DRKS1D3 · 10-01-2012, 03:24 PM

Did the goofballs at the dealer remove the shipping blocks from the suspension?

68vert · 10-01-2012, 04:46 PM

The rear end clutch's usually produce more of a mild thumping while turning as they are trying to grab. You can tell it is coming from the rear. A grinding noise sounds like something else.

whitetiger2474 · 10-03-2012, 08:06 AM

I've noticed mine only tends to do this on colder days.

STINGER BEE · 10-03-2012, 08:21 AM

Quote:

Originally Posted by dsmcfarland

I noticed the other day while going around a round about that I heard a grinding sound or scrape. Instantly I thought I hit something and screwed my front end. After looking it over there was no noticeable damages and I shrugged it off. Later that afternoon I heard it again on a sharp left turn. I immediately took it to the closest empty parking lot and did figure 8s and sure enough about every turn and a half I hear a grinding sound.

I took the car to the dealership to have it checked out and they heard it aswell and ordered replacement fluid for the stabletrack system. Just curious if anyone else has experienced it and what the dealerships have said or done to fix it?

She's a 2013 zl1 automatic for reference.

I had a similar problem,when turning out of a driveway etc.,I thought it was the brakes grinding at first. the dealer acknowledge the problem and installed a GM additive( I think there was a TSB out on it.) and I haven't heard it since.Not sure how long it will last or is this some sort of a yearly maintenance thing to replace rear axle fluid.

htron50 · 10-03-2012, 08:37 AM

What are "those in the know" thoughts about using Royal Purple 75W-90 WITH FRICTION ADDITIVE upc Code 01300 in these differentials?

10-01-2012, 10:58 AM	#1
dsmcfarland Drives: 2013 ZL1 Join Date: Aug 2012 Location: Little Rock, AR Posts: 9	Anyone having awful grinding sounds when making sharp turns?? I noticed the other day while going around a round about that I heard a grinding sound or scrape. Instantly I thought I hit something and screwed my front end. After looking it over there was no noticeable damages and I shrugged it off. Later that afternoon I heard it again on a sharp left turn. I immediately took it to the closest empty parking lot and did figure 8s and sure enough about every turn and a half I hear a grinding sound. I took the car to the dealership to have it checked out and they heard it aswell and ordered replacement fluid for the stabletrack system. Just curious if anyone else has experienced it and what the dealerships have said or done to fix it? She's a 2013 zl1 automatic for reference.

10-01-2012, 11:04 AM	#2
Stephen12ZL1 Drives: '21 ZLE A10 Join Date: May 2012 Location: Mechanicsville, VA Posts: 6,808	sounds like the clutches in the rear "posi" unit. The clutches are very aggressive in the ZL1 and will moan and growl when making tight turns. The fluid swap should fix it. They must use a specific fluid for the ZL1. __________________ '21 ZLE A10 Wild Cherry PDR 2:00.78 VIR Full 10.68@131.69 1.68 60' '17 ZL1 A10 Mosaic Black PDR/Nav 2:03.08 VIR Full 11.003@129.2 1.75 (sold) '15 Z/28 #325 Black a/c & stereo. 2:10.1 VIR Full (sold) '12 ZL1 A6 Black 10.52@131 1.55 60' 2:13 VIR Full (sold)

10-01-2012, 11:11 AM	#4
JusticePete Drives: Camaro Justice Join Date: Jun 2007 Location: Virginia Posts: 20,174	The 5th Gen differential uses a GM slip additive. My guess is they are going to add more slip additive. I wouldn't spend the day at a road course or drag strip but see no reason why you can't drive normally. Last edited by JusticePete; 10-01-2012 at 02:00 PM.

10-01-2012, 11:25 AM	#5
SlingShot Drives: 2012 ZL1 - #670 Join Date: Jun 2009 Location: Seminole, Fl. Posts: 8,009	I appreciate what you guys are saying about the rear end, but what does that have to do with stabiltrack. Also what fluid would the stabiltrack use that would need to be changed. I thought the stabiltrack worked off the brake system. __________________

10-01-2012, 03:24 PM	#10
DRKS1D3 Drives: '17 Corvette Grand Sport M7 Join Date: May 2012 Location: Pennsylvania Posts: 3,748	Did the goofballs at the dealer remove the shipping blocks from the suspension? __________________ MY RIDE: 2017 CORVETTE GRAND SPORT--TRIPLE BLACK, 7 SPEED MANUAL, VARARAM TCR-7 INTAKE, BORLA CATLESS X-PIPE, CARBON FIBER STAGE 2 AERO, MGW SHORT-THROW SHIFTER SOLD2011 TRIPLE BLACK SS CONVERTIBLE--6 SPEED MANUAL, MANY MODS, 455 RWHP/435 RWTQ DAD'S RIDE: 2012 ZL1 #1866--BLACK, 6 SPEED MANUAL, EXPOSED CF HOOD, POLISHED WHEELS, SUNROOF, ROTO-FAB INTAKE "Silly Americans, taking from the rich and giving to the poor only works in fairy tales. Success is earned here!".

10-01-2012, 11:08 AM	#3
dsmcfarland Drives: 2013 ZL1 Join Date: Aug 2012 Location: Little Rock, AR Posts: 9	That makes me feel better. It sounds like its coming from the front end but really hard to tell. Any issues diving it this way until I get the fluid swap?

10-01-2012, 12:39 PM	#6
dsmcfarland Drives: 2013 ZL1 Join Date: Aug 2012 Location: Little Rock, AR Posts: 9	I just asked the dealership exactly what they were doing so I can clarify here. They are infact adding the gm LS gear oil. I must have heard wrong when they mentioned the stabletrack

10-01-2012, 04:46 PM	#11
68vert Drives: 2010 SIM SS/RS, 1968 RS convertible Join Date: Sep 2008 Location: Wilmington, NC Posts: 744 View My Garage	The rear end clutch's usually produce more of a mild thumping while turning as they are trying to grab. You can tell it is coming from the rear. A grinding noise sounds like something else. __________________ 2010 SIM SS/RS see garage for mods

10-03-2012, 08:06 AM	#12
whitetiger2474 Drives: 2012 Inferno Orange ZL1 Join Date: Jun 2012 Location: Virginia Beach, VA Posts: 6	Thumping Noise I've noticed mine only tends to do this on colder days.

10-03-2012, 08:37 AM	#14
htron50 Drives: 2017 ZL1 Status "Thank You!" Join Date: Feb 2009 Location: SC Posts: 2,498	What are "those in the know" thoughts about using Royal Purple 75W-90 WITH FRICTION ADDITIVE upc Code 01300 in these differentials?