Cadillac V-Series - CTS-V, STS-V and XLR-V

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-   -   LS6 Shut-Down Stumble Question (https://www.vseries.net/forums/13-new-member-introductions/491-ls6-shut-down-stumble-question.html)

LunarX 08-28-2006 01:24 AM

LS6 Shut-Down Stumble Question
 
Hi,

I just picked up an 04 CTS-V.
It's such a joy to drive and handles way better than I expected. :D
However, I noticed there is a slight stubmble when shutting the engine down.
Is this normal?

BigJoeD 08-28-2006 09:54 AM

What do you mean? How about a little more detail. Is it like pinging?

LunarX 08-28-2006 06:00 PM

Quote:

Originally Posted by BigJoeD
What do you mean? How about a little more detail. Is it like pinging?

After turning the ignition off, the engine continues spinning for about a second or two longer than I would expect. Then it comes to rest with a bit of a shake and slight rattle. The brief rattle does sound similar to a pinging sound.
Is that normal behavior for this engine?

torchredfrc 08-29-2006 07:31 AM

Both the LS6 in the V and the LS1 in the Corvette do this. At first I thought it sounded a bit weird when shutting down but I eventually got used to it. If you still suspect something is wrong post up a sound clip or a video. I highly doubt your engine is pinging when it is shutting down.




LunarX 08-29-2006 07:54 AM

Thanks for the info. :)
I really appreciate the quick response.
My car only has 9K on it, so I suspected all was well.
I feel a lot better now.

BTW - This forum rocks!
I really appreciate the demeanor of people who post here.
It's so much nicer than the situation on other automotive forums, that get so ridiculous sometimes.
You guys have something really great going on here. :cool:

torchredfrc 08-29-2006 03:46 PM

Quote:

Originally Posted by LunarX
Thanks for the info. :)
I really appreciate the quick response.
My car only has 9K on it, so I suspected all was well.
I feel a lot better now.

BTW - This forum rocks!
I really appreciate the demeanor of people who post here.
It's so much nicer than the situation on other automotive forums, that get so ridiculous sometimes.
You guys have something really great going on here. :cool:

Tell your friends, we need more people! :)




BigJoeD 08-30-2006 03:27 PM

Quote:

Originally Posted by torchredfrc
Tell your friends, we need more people! :)

I'm trying :)

Redline CTS-V 09-02-2006 11:21 AM

I bet one or both of your motor mounts are broken... The mount doesn't break completely but it cracks enough to leak fluid out of it. Once it does that it almost feels like the engine is "running on" or "dieseling" when you shut the car off... Seen quite a few V's with this condition...

LunarX 09-02-2006 11:25 AM

Thanks Redline. :D

That's probably it.
I'll have it checked out and post the findings.


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