Blown (?) DSSV on ZL1 1LE

seanblurr · 07-15-2018, 02:40 PM

Was driving the car around after a wash and noticed the RF was making a new rattle/clunk everytime the car went over a bump in the road. Figured it may be related to the sway bar end links so I put the car in the air and started checking for bolts. I didn't find any loose bolts, but what I did find was a bunch of grease on the bottom of the RF damper. All other corners are clean with no leaks. Car has 3k miles on it, about 10 track days.

I know there was a recall on the DSSV's on the Colorado ZR2, "...may have a leaking front shock absorber. noise as a result of contact between the upper control arm and service stop, as well as a potential fractured shock absorber piston rod." Could be the source of my sound...

I suppose I will be contacting a local dealer tomorrow.

Just to add to this, what I'm referring to is grease coming out of the "breather" valve on the bottom side of the shocks. As I understand it, this grease is for internal lubrication and is not actually part of the "damper" and leaks can occur here. However, there was A LOT of grease on the bottom of the strut and knuckle of the car.

camareoZ · 07-15-2018, 02:47 PM

bump

waterman · 07-15-2018, 02:53 PM

Quote:

Originally Posted by seanblurr

Was driving the car around after a wash and noticed the RF was making a new rattle/clunk everytime the car went over a bump in the road. Figured it may be related to the sway bar end links so I put the car in the air and started checking for bolts. I didn't find any loose bolts, but what I did find was a bunch of grease on the bottom of the RF damper. All other corners are clean with no leaks. Car has 3k miles on it, about 10 track days.

I know there was a recall on the DSSV's on the Colorado ZR2, "...may have a leaking front shock absorber. noise as a result of contact between the upper control arm and service stop, as well as a potential fractured shock absorber piston rod." Could be the source of my sound...

I suppose I will be contacting a local dealer tomorrow.

Just to add to this, what I'm referring to is grease coming out of the "breather" valve on the bottom side of the shocks. As I understand it, this grease is for internal lubrication and is not actually part of the "damper" and leaks can occur here. However, there was A LOT of grease on the bottom of the strut and knuckle of the car and the breather appears to be gone.

Subscribed. Please keep us posted.

bensf · 07-15-2018, 06:32 PM

I have the same issue on the same (RF) damper but without the clunking noise

FNxR3DNECK · 07-15-2018, 06:34 PM

I just had my ZR2 checked for that when I took it in for the free oil change last week, it was good thankfully. It definitely sounds like the same thing that was happening to the ZR2s...

seanblurr · 07-15-2018, 07:44 PM

The clunk does sound very similar as if it had loose end links, though they are definitely tight.

WhiteBoy18 · 07-15-2018, 09:19 PM

https://www.camaro6.com/forums/showthread.php?t=506938

Same issue and it was the end links...above is the tsb for it. Hope this helps!

devnull · 07-15-2018, 10:05 PM

I would loosen and retorque the end links. At least it’s easily repeatable. Very odd

seanblurr · 07-15-2018, 10:29 PM

I will loosen and retorque just for peace of mind, however, that doesn't change the absurd amount of grease on the bottom of the strut, knuckle, and brake caliper which is the main concern that I initially posted about.

devnull · 07-15-2018, 10:32 PM

Quote:

Originally Posted by seanblurr

I will loosen and retorque just for peace of mind, however, that doesn't change the absurd amount of grease on the bottom of the strut, knuckle, and brake caliper is still quite a concern though.

Yeah I agree, I’d just want to me 100% on those links. The grease may be a different issue. Certainly possible, but my head just doesn’t wrap around that sound being the damper.

seanblurr · 07-15-2018, 10:33 PM

Quote:

Originally Posted by devnull

Yeah I agree, I’d just want to me 100% on those links. The grease may be a different issue. Certainly possible, but my head just doesn’t wrap around that sound being the damper.

That was my exactly thinking, I've never seen a damper make a sound like that.

nighttowl · 07-18-2018, 09:49 PM

Did you hear anything from the dealer about the grease blown out of the bottom of the shock?

wlsmoku · 07-19-2018, 11:11 AM

my Zl1 is making a very similar noise on the LF. I need to inspect it asap!

seanblurr · 07-19-2018, 09:18 PM

Guys just to update, I've had this car up to check and recheck. It is definitely not the end links. Dealer appointment on Monday. I'm still hard-pressed to believe it's the damper making this sound.

07-15-2018, 02:40 PM	#1
seanblurr Drives: ZL1 1LE Join Date: Oct 2016 Location: California Posts: 1,297	Blown (?) DSSV on ZL1 1LE Was driving the car around after a wash and noticed the RF was making a new rattle/clunk everytime the car went over a bump in the road. Figured it may be related to the sway bar end links so I put the car in the air and started checking for bolts. I didn't find any loose bolts, but what I did find was a bunch of grease on the bottom of the RF damper. All other corners are clean with no leaks. Car has 3k miles on it, about 10 track days. I know there was a recall on the DSSV's on the Colorado ZR2, "...may have a leaking front shock absorber. noise as a result of contact between the upper control arm and service stop, as well as a potential fractured shock absorber piston rod." Could be the source of my sound... I suppose I will be contacting a local dealer tomorrow. Just to add to this, what I'm referring to is grease coming out of the "breather" valve on the bottom side of the shocks. As I understand it, this grease is for internal lubrication and is not actually part of the "damper" and leaks can occur here. However, there was A LOT of grease on the bottom of the strut and knuckle of the car. __________________ Last edited by seanblurr; 07-15-2018 at 05:14 PM.

07-15-2018, 06:32 PM	#4
bensf Drives: ZL1 1LE Join Date: Sep 2017 Location: Bay Area Posts: 104	I have the same issue on the same (RF) damper but without the clunking noise __________________ 2018 Camaro ZL1 1LE 2015 GT3 (gone) 2011 Boxster Spyder

07-15-2018, 06:34 PM	#5
FNxR3DNECK Drives: 2017 SS 1LE Join Date: Mar 2016 Location: Monterey, CA Posts: 2,474	I just had my ZR2 checked for that when I took it in for the free oil change last week, it was good thankfully. It definitely sounds like the same thing that was happening to the ZR2s... __________________ IG: @NC_M1SS1LE

07-15-2018, 10:05 PM	#8
devnull Scientific negotiator Drives: 2019 Grand Sport Join Date: Mar 2017 Location: Forsyth, GA Posts: 873	I would loosen and retorque the end links. At least it’s easily repeatable. Very odd __________________ 2019 Grand Sport M7 2018 ZL1 *1LE* 6MT 2017 SS *1LE* 6MT . Matthew 25:40 *ΜΟΛΩΝ ΛΑβΕ*

07-15-2018, 10:29 PM	#9
seanblurr Drives: ZL1 1LE Join Date: Oct 2016 Location: California Posts: 1,297	I will loosen and retorque just for peace of mind, however, that doesn't change the absurd amount of grease on the bottom of the strut, knuckle, and brake caliper which is the main concern that I initially posted about. __________________

07-15-2018, 02:47 PM	#2
camareoZ Drives: 2018 Camaro ZL1 1LE (Black) Join Date: Jan 2018 Location: TEXAS Posts: 14	bump

07-15-2018, 09:19 PM	#7
WhiteBoy18 Drives: 2018 ZL1 Summit White M6 Join Date: May 2017 Location: Colorado Posts: 100	https://www.camaro6.com/forums/showthread.php?t=506938 Same issue and it was the end links...above is the tsb for it. Hope this helps!

07-18-2018, 09:49 PM	#12
nighttowl Sarcasm loading -------- Drives: 2018 ZL1 1LE Join Date: Dec 2011 Location: TX Posts: 1,805 View My Garage	Did you hear anything from the dealer about the grease blown out of the bottom of the shock? __________________ "The salesman actually told me to stop getting it sideways during the test drive" 2018 MBM ZL1 1LE - Stock 2014 CRT ZL1 574 rwhp, 537 rwtq - SOLD 2010 IBM SS Camaro VVT L99 w/ TR6060 swap, 489 rwhp, 444 rwtq - SOLD

07-19-2018, 11:11 AM	#13
wlsmoku Drives: 2018 ZL1 A10 Join Date: Mar 2018 Location: Missouri Posts: 133 View My Garage	my Zl1 is making a very similar noise on the LF. I need to inspect it asap!

07-19-2018, 09:18 PM	#14
seanblurr Drives: ZL1 1LE Join Date: Oct 2016 Location: California Posts: 1,297	Guys just to update, I've had this car up to check and recheck. It is definitely not the end links. Dealer appointment on Monday. I'm still hard-pressed to believe it's the damper making this sound. __________________

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