Clunking Noise in Rear Only When Stopping - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Mr. Texas · 04-21-2012, 10:08 AM

I searched countless threads to see if anyone else had this same issue, but I couldn't come up with anything.

I installed BMR 1" drop springs and trailing arms. I took the car to have the bushings timed and an alignment done yesterday. The car rides great and makes zero noise while driving over bumps, turning, etc. The problem is when I come to a quick stop the car makes a small clunk noise. It seems to do it has the weight settles back on the rear after it is transferred to the front from the quick stop. Everything is tight underneath the car. Is this normal?

MPG1959 · 04-21-2012, 10:13 AM

Mine does the same thing with a full tank of gas. I think the gas is just sloshing back and forth making the clunking sound when coming to a stop.

11SynergyGr&Bl · 04-21-2012, 11:52 AM

It's probably the gas in the tank. Is it coming from one side or the other? other thing you might want to check is if the spring is seated correctly. i wouldn't think it could be, but a way to check is lift the car up so the rear is off the ground. You can leave the wheel on, or off. Off would give you more eye'n room tho. Check the spring, and seats of the spring, also does the spring have up and down movement play at all?

Parag · 04-21-2012, 05:18 PM

sway bar could be binding.

JohnZ · 04-21-2012, 06:24 PM

What would you do if the sway bar was binding? I might have the same issue.

Parag · 04-21-2012, 07:02 PM

ive only seen that with improperly installed mounts. its pretty obvious under the car if the sway is binding.

JohnZ · 04-21-2012, 07:11 PM

this might be a dumb question, but what exactly happens when the sway bar "binds"?

Parag · 04-21-2012, 07:16 PM

Quote:

Originally Posted by JohnZ

this might be a dumb question, but what exactly happens when the sway bar "binds"?

it clunks and makes noise.
depends on how bad the problem is. if it is way off or bent, the car will sit crooked.
its really rare.

if you have aftermarket sways, just check with the brand to see what mounts are required.
other than that look into see if you need additional sub-frame bracing.

Mr. Texas · 04-22-2012, 11:29 AM

Quote:

Originally Posted by Parag

sway bar could be binding.

I put the rear end up on ramps and broke the end links loose. I shook the heck out of the sway bar and retightened everything. That solved the problem!

mntgome1 · 04-22-2012, 01:52 PM

I have read a thread about a clunking noise coming from the rear passenger side of the vehicle during deceleration. It was reported as normal and had something to do with the fuel system.

04-21-2012, 10:08 AM	#1
Mr. Texas Drives: 2016 Mosiac Black 2SS A8 Join Date: Apr 2011 Location: Richmond, Tx Posts: 127	Clunking Noise in Rear Only When Stopping I searched countless threads to see if anyone else had this same issue, but I couldn't come up with anything. I installed BMR 1" drop springs and trailing arms. I took the car to have the bushings timed and an alignment done yesterday. The car rides great and makes zero noise while driving over bumps, turning, etc. The problem is when I come to a quick stop the car makes a small clunk noise. It seems to do it has the weight settles back on the rear after it is transferred to the front from the quick stop. Everything is tight underneath the car. Is this normal?

04-21-2012, 11:52 AM	#3
11SynergyGr&Bl JZ Drives: 2011 Synergy Green Camaro Join Date: May 2011 Location: Arizona Posts: 175	It's probably the gas in the tank. Is it coming from one side or the other? other thing you might want to check is if the spring is seated correctly. i wouldn't think it could be, but a way to check is lift the car up so the rear is off the ground. You can leave the wheel on, or off. Off would give you more eye'n room tho. Check the spring, and seats of the spring, also does the spring have up and down movement play at all? __________________ 2011 SGM Camaro Hi/low 8k HID kit, Injen WB long tube, Pfadt stage 2, Rx black ice-olator, Rx catch can (color matched =D).

04-21-2012, 05:18 PM	#4
Parag Drives: 2010 camaro 2SS LS3 Join Date: Aug 2011 Location: Denver Posts: 1,334	sway bar could be binding. __________________ stage III cam, 4.10's, custom CAI, suede headliner 461 RWHP, 422 RWTQ

04-21-2012, 06:24 PM	#5
JohnZ Drives: 2010 Camaro 2LT V6 Join Date: Jul 2009 Location: California Posts: 439	What would you do if the sway bar was binding? I might have the same issue. __________________ Injen CAI, V-Max Throttle Body, Rx 25mm Iceolator, Rx 10mm Plenum Spacer, Mace Ported Manifold, ARK N-II Catback, Trifecta Tune, Rx Catch Can. BMR Bushing Inserts,Pedders Radius Rod Inserts, Pfadt Sway Bars and Endlinks, LSR Front Subframe Brace SS Brembo Brakes, Racing Brake Stainless Lines

04-21-2012, 07:02 PM	#6
Parag Drives: 2010 camaro 2SS LS3 Join Date: Aug 2011 Location: Denver Posts: 1,334	ive only seen that with improperly installed mounts. its pretty obvious under the car if the sway is binding. __________________ stage III cam, 4.10's, custom CAI, suede headliner 461 RWHP, 422 RWTQ

04-21-2012, 10:13 AM	#2
MPG1959 Drives: 2012 45th SS Join Date: Jan 2012 Location: Tehachapi,Ca Posts: 58	Mine does the same thing with a full tank of gas. I think the gas is just sloshing back and forth making the clunking sound when coming to a stop.

04-21-2012, 07:11 PM	#7
JohnZ Drives: 2010 Camaro 2LT V6 Join Date: Jul 2009 Location: California Posts: 439	this might be a dumb question, but what exactly happens when the sway bar "binds"? __________________ Injen CAI, V-Max Throttle Body, Rx 25mm Iceolator, Rx 10mm Plenum Spacer, Mace Ported Manifold, ARK N-II Catback, Trifecta Tune, Rx Catch Can. BMR Bushing Inserts,Pedders Radius Rod Inserts, Pfadt Sway Bars and Endlinks, LSR Front Subframe Brace SS Brembo Brakes, Racing Brake Stainless Lines

04-22-2012, 01:52 PM	#10
mntgome1 Drives: 2012 AGM 2SS/RS Join Date: Mar 2012 Location: Home of the Blue Crab Posts: 861	I have read a thread about a clunking noise coming from the rear passenger side of the vehicle during deceleration. It was reported as normal and had something to do with the fuel system. __________________