Intermittent Metal Noise - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Valkyrie14 · 02-25-2021, 08:56 PM

I have been hearing a metallic scraping noise for awhile. I haven’t posted because I have been trying to isolate it, but no luck. The noise only happens when I’m driving, I will come to a stop and it will continue. But if I leave it in N and get out to listen it doesn’t make the noise.

I have gone from thinking it was brakes (ruled out when it continues at a stop), to thinking it is a loose bolt on something in the drive belt. It comes and it goes and I haven’t found a commonality of when the noise happens.

I do know this, when the noise is happening and I hit a bump the noise clanks.

Car is running fine. Recent project is install of AGP dual fuel pump about 500 miles on it. Installed LSA 5,000 miles ago. Rear cradle bushings 500 miles ago.

Been busy figuring out boost line issue (separate thread) that I haven’t dealt with this. But now that I am sure my boost line issue isn’t major I am more concerned with this noise.

Anyone had this? Ideas on how to isolate/rule things out?

Valkyrie14 · 02-26-2021, 07:25 PM

I tried to record the noise, but you can’t really hear it on the recording.

prod · 02-26-2021, 08:11 PM

First thing to check IMO is exhaust shields under the car. It can occur over time and happens intermittently when engine is running, but can change over bumps.
Is it related to wheel speed?

Valkyrie14 · 02-26-2021, 11:23 PM

Quote:

Originally Posted by prod

First thing to check IMO is exhaust shields under the car. It can occur over time and happens intermittently when engine is running, but can change over bumps.
Is it related to wheel speed?

The noise will persist at a stop light. When I did my fuel pump I did drop both heat shields above the drive shaft. I didn’t reinstall one because I couldn’t get it back in quite right above my drive shaft loop. Worth getting under there and checking, good idea.

The noise seems to be coming from the engine bay. But since I can only hear it while driving it is hard to tell for sure. My car hypochondria is making think bolts are loose somewhere. I check my belt drive this morning and everything was tight.

Valkyrie14 · 03-02-2021, 06:02 PM

Got a recording today where you can at least hear what is happening. The noise has gotten louder and changed tone. So what ever it is it seems to be progressing.

Valkyrie14 · 03-02-2021, 06:04 PM

Apparently I can’t attach an audio.

Valkyrie14 · 03-03-2021, 09:25 AM

Quote:

Originally Posted by prod

First thing to check IMO is exhaust shields under the car. It can occur over time and happens intermittently when engine is running, but can change over bumps.
Is it related to wheel speed?

I have been thinking about your suggestion. This makes sense to me now, I think the heat shield is hitting the driveshaft. What threw me off was when it happens at a stop. But the driveshaft spins in neutral so now I get it. Climbing under there this weekend to explore. Thanks again for the comment.

1JEWLDSSRS · 03-03-2021, 10:01 AM

What? How can your drive shaft spin on neutral?? The car would be moving if the ds is spinning..lol. Mine doesn't spin in neutral or park.. Only when the car is in gear will it spin.

Valkyrie14 · 03-03-2021, 06:29 PM

Quote:

Originally Posted by 1JEWLDSSRS

What? How can your drive shaft spin on neutral?? The car would be moving if the ds is spinning..lol. Mine doesn't spin in neutral or park.. Only when the car is in gear will it spin.

I hear the noise at a stop. I googled it, lol. I am trying to figure out the noise and thought I had it!

What spins under there that could be hitting something while driving and at a stop? The noise is driving me crazy!

Avenging Orange · 03-03-2021, 06:51 PM

So, the noise is there when the driveline is engaged, correct? If in park or neutral, the noise goes away?

1JEWLDSSRS · 03-04-2021, 09:21 AM

Is you Camaro a stick or an auto?? If an auto check your flex plate bolts, maybe one came loose and is hitting something in the bell housing, if a stick check your throw-out bearing and such.

Valkyrie14 · 03-04-2021, 10:29 AM

Quote:

Originally Posted by Avenging Orange

So, the noise is there when the driveline is engaged, correct? If in park or neutral, the noise goes away?

It is both, but not ever when I am in the garage with the hood open!

Valkyrie14 · 03-04-2021, 10:30 AM

Quote:

Originally Posted by 1JEWLDSSRS

Is you Camaro a stick or an auto?? If an auto check your flex plate bolts, maybe one came loose and is hitting something in the bell housing, if a stick check your throw-out bearing and such.

It’s manual, how do I check the throw out bearing?

1JEWLDSSRS · 03-04-2021, 11:14 AM

Quote:

Originally Posted by Valkyrie14

It’s manual, how do I check the throw out bearing?

I'm not to sure on that one as I have an auto, was just a suggestion and hopefully someone will chime in that knows. I know in my "old school" Muncie you'd check it with the car running in nuetral and by slightly depressing the clutch pedal and the noise would go away, then when you let off the pedal it would come back, not sure about these hydrolic clutches. Good luck.

02-25-2021, 08:56 PM	#1
Valkyrie14 Valkyrie14 Drives: Chevrolet Camaro SS Join Date: Mar 2020 Location: Eau Claire, Wisconsin Posts: 962	Intermittent Metal Noise I have been hearing a metallic scraping noise for awhile. I haven’t posted because I have been trying to isolate it, but no luck. The noise only happens when I’m driving, I will come to a stop and it will continue. But if I leave it in N and get out to listen it doesn’t make the noise. I have gone from thinking it was brakes (ruled out when it continues at a stop), to thinking it is a loose bolt on something in the drive belt. It comes and it goes and I haven’t found a commonality of when the noise happens. I do know this, when the noise is happening and I hit a bump the noise clanks. Car is running fine. Recent project is install of AGP dual fuel pump about 500 miles on it. Installed LSA 5,000 miles ago. Rear cradle bushings 500 miles ago. Been busy figuring out boost line issue (separate thread) that I haven’t dealt with this. But now that I am sure my boost line issue isn’t major I am more concerned with this noise. Anyone had this? Ideas on how to isolate/rule things out? __________________ 2014 SS LS3/LSA Supercharger, 10% Super Damper, 2.55 upper, AGP Dual Pump, ID 1050 injectors, Pegasus solid rear cradle bushings, LT Headers, Roto-Fab CAI, Elite E2 catch can, E85 corn fed, 160 Thermostat, Monster Twin Disk, MGW Short Throw shifter, Tick Clutch Master Cylinder, HP Tuners, JL Audio system.

02-26-2021, 07:25 PM	#2
Valkyrie14 Valkyrie14 Drives: Chevrolet Camaro SS Join Date: Mar 2020 Location: Eau Claire, Wisconsin Posts: 962	I tried to record the noise, but you can’t really hear it on the recording. __________________ 2014 SS LS3/LSA Supercharger, 10% Super Damper, 2.55 upper, AGP Dual Pump, ID 1050 injectors, Pegasus solid rear cradle bushings, LT Headers, Roto-Fab CAI, Elite E2 catch can, E85 corn fed, 160 Thermostat, Monster Twin Disk, MGW Short Throw shifter, Tick Clutch Master Cylinder, HP Tuners, JL Audio system.

03-02-2021, 06:02 PM	#5
Valkyrie14 Valkyrie14 Drives: Chevrolet Camaro SS Join Date: Mar 2020 Location: Eau Claire, Wisconsin Posts: 962	Got a recording today where you can at least hear what is happening. The noise has gotten louder and changed tone. So what ever it is it seems to be progressing. __________________ 2014 SS LS3/LSA Supercharger, 10% Super Damper, 2.55 upper, AGP Dual Pump, ID 1050 injectors, Pegasus solid rear cradle bushings, LT Headers, Roto-Fab CAI, Elite E2 catch can, E85 corn fed, 160 Thermostat, Monster Twin Disk, MGW Short Throw shifter, Tick Clutch Master Cylinder, HP Tuners, JL Audio system.

03-02-2021, 06:04 PM	#6
Valkyrie14 Valkyrie14 Drives: Chevrolet Camaro SS Join Date: Mar 2020 Location: Eau Claire, Wisconsin Posts: 962	Apparently I can’t attach an audio. __________________ 2014 SS LS3/LSA Supercharger, 10% Super Damper, 2.55 upper, AGP Dual Pump, ID 1050 injectors, Pegasus solid rear cradle bushings, LT Headers, Roto-Fab CAI, Elite E2 catch can, E85 corn fed, 160 Thermostat, Monster Twin Disk, MGW Short Throw shifter, Tick Clutch Master Cylinder, HP Tuners, JL Audio system.

03-03-2021, 10:01 AM	#8
1JEWLDSSRS Drives: 2011 SS-RS Join Date: May 2011 Location: FLORIDA Posts: 11,402	What? How can your drive shaft spin on neutral?? The car would be moving if the ds is spinning..lol. Mine doesn't spin in neutral or park.. Only when the car is in gear will it spin. __________________ TSP STAGE 3 CAM,231/246 @112 LSA 614/641 LIFT, CIRCLE D 5C-4200-4500 CONVERTER,LOD INTAKE.CORSA EXHAUST. DSS 1 PC DS. PEGASUS SOLID CRADLE MOUNTS. 486RWHP/475RWTQ.LOTS MORE.

02-26-2021, 08:11 PM	#3
prod Drives: HHR Join Date: Dec 2015 Location: GTA ON CA Posts: 451	First thing to check IMO is exhaust shields under the car. It can occur over time and happens intermittently when engine is running, but can change over bumps. Is it related to wheel speed?

03-03-2021, 06:51 PM	#10
Avenging Orange Drives: 2010 Inferno Orange 2SS/RS Join Date: Apr 2010 Location: Clermont, IN Posts: 3,297	So, the noise is there when the driveline is engaged, correct? If in park or neutral, the noise goes away? __________________ 2010 Inferno Orange 2SS/RS M6 Black Leather, Sun Roof, OBX Headers, Borla touring axle back, Cold Air Inductions CAI , non synthetic fluids, BMR total bushing upgrade/1" lowering springs, DSE 32mm rear sway bar. GM fe4 shocks/struts/LCA's, AAM 3.91 diff, Vertini RFS1.8 20x9 +30. Conti ExtremeContact Sport 275/35/20. sjm autoprod ABL dash kit. Mike Norris tuned 413/419. Avenging Orange: 43 years of not buying into the Hype........and damn proud of it!! https://youtu.be/9JD9it6SmB8 https://youtu.be/xmelTlEzI34 KICKING CANCERS ASS SINCE 2015!!

03-04-2021, 09:21 AM	#11
1JEWLDSSRS Drives: 2011 SS-RS Join Date: May 2011 Location: FLORIDA Posts: 11,402	Is you Camaro a stick or an auto?? If an auto check your flex plate bolts, maybe one came loose and is hitting something in the bell housing, if a stick check your throw-out bearing and such. __________________ TSP STAGE 3 CAM,231/246 @112 LSA 614/641 LIFT, CIRCLE D 5C-4200-4500 CONVERTER,LOD INTAKE.CORSA EXHAUST. DSS 1 PC DS. PEGASUS SOLID CRADLE MOUNTS. 486RWHP/475RWTQ.LOTS MORE.