Sewing machine
Thread Starter
Heel & Toe
Joined: Sep 2007
Posts: 15
Likes: 0
From: Suffolk Virginia
Sewing machine
My 2006 C6 makes a a sewing machine ticking noise. Its starting to become more noticable. It only have 6700miles. Anyone have any suggestions on how to get of rid it.
Last edited by 251; Apr 4, 2008 at 03:16 AM.
Burning Brakes
Joined: Sep 2005
Posts: 980
Likes: 0
From: Raleigh NC
Thread Starter
Heel & Toe
Joined: Sep 2007
Posts: 15
Likes: 0
From: Suffolk Virginia
Burning Brakes
Joined: Mar 2003
Posts: 915
Likes: 1
From: UK
Agree with responses above. However, it's hard to give an answer without hearing it. I would advise you to find another C6 and have a listen, in order to compare with yours. However, the injectors and the valvetrain conspire together to make the 'sewing machine' noise you're hearing, although it shouldn't be excessively noisy (mine is barely audible, but I do hear it if accelerating with the windows down under light throttle).
Cheers,
Ian.
Cheers,
Ian.
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Pro
Joined: May 2007
Posts: 592
Likes: 2
From: SFV LA
sweet noise
This is the sound of a roller valve train push rod V-8 LS engine.
With headers the sound is more apparent. All is normal. For peace of mind remove valve covers and look for broken rocker arm trunion cap.
Usually associated with Z06 motors on the offset intake rocker.
However with my first LS vet I thought it was a little noisy but all was normal.
With headers the sound is more apparent. All is normal. For peace of mind remove valve covers and look for broken rocker arm trunion cap.
Usually associated with Z06 motors on the offset intake rocker.
However with my first LS vet I thought it was a little noisy but all was normal.
Pro
Joined: Nov 2006
Posts: 636
Likes: 2
From: Lumberton TX
I think the sound is normal. I got the same sound after installing aftermarket valve springs in my LS1 Trans Am. The C6's have heavier springs in them similar to the LS6 motors. GM had to put them in because of increased redline limits so that you won't get any valve float above 6k to 6.5k.
Instructor
Joined: Nov 2006
Posts: 221
Likes: 0
I mentioned a recent post that my (more noticeable than most) Ticking sound (most noticeable around 2K rpms in-car) was due to the stock exhaust manifold bolts a bit loose (about 1/2 turn needed to get to 15FT/lb spec) - 2005 C6 with only appx 8K miles.
I know some noise (injectors/VT/etc.) is normal but mine IMHO was worse that usual - the above made a BIG difference in the in-car noise I'd been hearing...
"Solved my Ticking noise..."
http://forums.corvetteforum.com/show...p?p=1564847496
I know some noise (injectors/VT/etc.) is normal but mine IMHO was worse that usual - the above made a BIG difference in the in-car noise I'd been hearing...
"Solved my Ticking noise..."
http://forums.corvetteforum.com/show...p?p=1564847496
