thumping noise

[lemontwist]

2011 ls3 m6
when i'm going 50-55 in 6th or 5th if i coast then give it gas thump/boom from the rear the car has 20k on it i just got it 2 weeks ago.......
is that normal??? i would say no but before i take it somewhere i thought i would ask ya'll

[Black_SS10]

No, it's not normal. Does it make any noise in any other situation? Such as over bumps or during turns?

[fhrex]

DEFINITELY not normal

[lemontwist]

Originally Posted by Black_SS10

No, it's not normal. Does it make any noise in any other situation? Such as over bumps or during turns?

no no other time just coasting in 5th or 6th when you give it gas -boom.sounds like excessive backlash u joint drive shaft.i have a power-train warranty.
1 owner car no mods clean carfax i'll put it up on my friends lift and check for anything obvious before i take it to get looked at.

[Black_SS10]

Yea, sounds like maybe the diff is ready to grenade. Or could be a bad joint or bearing along the drivetrain.

[V8only]

actually there is a bit of driveline clunk with these dual driveshafts...My 12 has it and my brothers low mile 14 does it too..Hard to tell though if yours is normal or not

[Black_SS10]

Originally Posted by V8only

actually there is a bit of driveline clunk with these dual driveshafts...My 12 has it and my brothers low mile 14 does it too..Hard to tell though if yours is normal or not

What? Normal? I dont have any clunk. My diff is built. Running stock driveshaft as well. Even with my 1piece shaft I didn't have any clunk.

[V8only]

Originally Posted by Black_SS10

What? Normal? I dont have any clunk. My diff is built. Running stock driveshaft as well. Even with my 1piece shaft I didn't have any clunk.

Yes you do, lol you just can't hear it above the exhaust and all the sound silencer in the car. It's very subtle, but i've verified it's normal with these cars with a virgin low mile car. It's a very subtle u joint sound that comes from the drive shafts... It's there. I didn't start hearing mine until I drove with the boot off when I upgraded my shifter. You won't be able to get rid of it unless you go with a solid one piece driveshaft.

[Black_SS10]

Originally Posted by V8only

Yes you do, lol you just can't hear it above the exhaust and all the sound silencer in the car. It's very subtle, but i've verified it's normal with these cars with a virgin low mile car. It's a very subtle u joint sound that comes from the drive shafts... It's there. I didn't start hearing mine until I drove with the boot off when I upgraded my shifter. You won't be able to get rid of it unless you go with a solid one piece driveshaft.

Umm....ok....yeah no. I had a solid 1piece driveshaft as well, no difference. I actually prefer the OEM 2pc. I have never heard a thumping or clunking noise from a camaro, unless something was wrong. You can hear the axles clicking, which can be loud as well. There is a fix for that.

[V8only]

https://www.camaro5.com/forums/showthread.php?t=39527

there is info out there on this. Looking at your mod list, it's obvious that you're not new to the game. BTW how does it handle? Many of those mods you have i'm about to finally install. Hoping for a massive transformation, as my 98 c class mercedes handles better then my 12 camaro lol.

You probably got lucky with the noise, as it seems to be a fairly common occurrence with these cars

[Black_SS10]

Originally Posted by V8only

https://www.camaro5.com/forums/showthread.php?t=39527

there is info out there on this. Looking at your mod list, it's obvious that you're not new to the game. BTW how does it handle? Many of those mods you have i'm about to finally install. Hoping for a massive transformation, as my 98 c class mercedes handles better then my 12 camaro lol.

You probably got lucky with the noise, as it seems to be a fairly common occurrence with these cars

Idk, maybe. It handles alright. I dont do any canyon carving in FL. Lol. Im looking into swapping some stuff right now.