Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com
 
PFYC
Go Back   Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums - Camaro5.com > General Camaro Forums > Regional Forums > USA - California

USA - California The Golden State

Reply
 
Thread Tools
Old 02-17-2010, 08:55 PM   #1
6DEAN9
 
6DEAN9's Avatar
 
Drives: 2010 2SS/RS M6
Join Date: Jan 2010
Location: Alta Loma
Posts: 190
Car has slight stumble at idle?

I have noticed that my car has a slight stumble at idle. I heard from someone that they noticed the same thing. Just wondering if this is normal?
__________________
6DEAN9 is offline   Reply With Quote
Old 02-17-2010, 08:57 PM   #2
SSOOCH
Camaro SL,UTs
 
SSOOCH's Avatar
 
Drives: 2010 Camaro SS/RS #16429
Join Date: Sep 2006
Location: South Jordan, UT
Posts: 7,430
The LS3 idles around 500RPM. It's fine.
__________________
SSOOCH is offline   Reply With Quote
Old 02-17-2010, 09:05 PM   #3
SSchase
 
SSchase's Avatar
 
Drives: 2010 camaro SS/RS LS3
Join Date: Aug 2009
Location: SF bay area
Posts: 326
mine does it on a cold start sometimes almost like its got a massive cam lol.
__________________
SSchase is offline   Reply With Quote
Old 02-17-2010, 09:18 PM   #4
MEDISIN

 
MEDISIN's Avatar
 
Drives: 2011 CTS-V Sedan
Join Date: May 2009
Location: Chapel Hill, NC
Posts: 1,125
1900 miles and it occasionally idles rough at a stop light. sounds mean as hell from the outside. hasn't died on my though!
__________________
2012 - Present: 2011 CTS-V Sedan, A6, Airaid and Tune by R.P.M. = 515 hp/487 lb-ft.
2009 - 2012: 2010 2SS RS IBM M6 Photos, MGW Shifter, BMR Trailing Arms/Tunnel Brace, Roto-Fab CAI, VMAX Ported TB, Kooks 6511-Complete (Headers, X-Pipe, Mufflers), dyno tuned by R.P.M. = 415 hp/412 lb-ft.
MEDISIN is offline   Reply With Quote
Old 02-17-2010, 10:40 PM   #5
caper

 
Drives: 2010 IOM 2ss/RS
Join Date: Sep 2009
Location: SoCal, I.E.
Posts: 1,301
mine does as well. glad its normal.
caper is offline   Reply With Quote
Old 02-17-2010, 11:32 PM   #6
6DEAN9
 
6DEAN9's Avatar
 
Drives: 2010 2SS/RS M6
Join Date: Jan 2010
Location: Alta Loma
Posts: 190
Thanks to everyone. I was worried it was my car.
__________________
6DEAN9 is offline   Reply With Quote
Old 02-18-2010, 06:30 AM   #7
FANTA-Z
 
FANTA-Z's Avatar
 
Drives: 2010 SSRS
Join Date: Mar 2009
Location: Louisville, KY
Posts: 390
Yep mine does it too
__________________
Glenn
2010 Camaro 2SSRS Inferno Orange Metallic
FANTA-Z is offline   Reply With Quote
Old 02-18-2010, 01:27 PM   #8
BlackSunshine87
SoCal C5 Family Member
 
BlackSunshine87's Avatar
 
Drives: 2010 Black/Black 2SS RS Camaro
Join Date: Dec 2009
Location: San Diego, Ca
Posts: 74
Send a message via MSN to BlackSunshine87
Low RPM + 6.2L = Rumble in the Jungle!
As long as you don't have knock while driving your good.
__________________

"Discovered by the Germans in 1904, they named it San Diego, which of course in German means a whale's ******."
BlackSunshine87 is offline   Reply With Quote
Old 02-18-2010, 02:15 PM   #9
Jeanius


 
Jeanius's Avatar
 
Drives: Blk/Blk LS3 SS
Join Date: Dec 2006
Location: Golden State
Posts: 2,457
Quote:
Originally Posted by BlackSunshine87 View Post
Low RPM + 6.2L = Rumble in the Jungle!
As long as you don't have knock while driving your good.
Is knock very noticeable?
__________________
2SS LS3 M6 - MGW - Dynatech LT's HF Cats - Magnaflow Street CB - ADM Race CAI - Pedders Xa Coilovers - Pfadt Sways
Jeanius is offline   Reply With Quote
Old 02-18-2010, 03:28 PM   #10
reddevil
 
Drives: Red Jewel camaro
Join Date: Sep 2009
Location: OKC
Posts: 49
Quote:
Originally Posted by 6DEAN9 View Post
I have noticed that my car has a slight stumble at idle. I heard from someone that they noticed the same thing. Just wondering if this is normal?
I asked my dealers service tech and he said it was the cam on the v8's.
reddevil is offline   Reply With Quote
Old 02-18-2010, 03:42 PM   #11
BlackSunshine87
SoCal C5 Family Member
 
BlackSunshine87's Avatar
 
Drives: 2010 Black/Black 2SS RS Camaro
Join Date: Dec 2009
Location: San Diego, Ca
Posts: 74
Send a message via MSN to BlackSunshine87
Quote:
Originally Posted by Jeanius View Post
Is knock very noticeable?
The only time I feel it is when I'm sitting still, and yes, I noticed it at the first light I pulled up to after leaving the dealership.
__________________

"Discovered by the Germans in 1904, they named it San Diego, which of course in German means a whale's ******."
BlackSunshine87 is offline   Reply With Quote
Old 02-18-2010, 03:45 PM   #12
SSRSLY
Lady Racer
 
SSRSLY's Avatar
 
Drives: 2010 Camaro SS/RS
Join Date: Oct 2009
Location: Spring TX
Posts: 519
Quote:
Originally Posted by BlackSunshine87 View Post
The only time I feel it is when I'm sitting still, and yes, I noticed it at the first light I pulled up to after leaving the dealership.
That's not knock. GM put a pretty aggressive stock cam in the LS3 to pull 426 hp, and what you're feeling is what hot rodders commonly refer to as "camming." It's nothing to be afraid of folks, it's just another thing that makes these cars awesome.
__________________

2010 Camaro SS/RS: HRE, MGW, Magnacharger, BMR, TSP || 2012 Boss 302: BMR, Forgeline (incoming)
SSRSLY is offline   Reply With Quote
Old 02-18-2010, 05:04 PM   #13
ffrcobra_65
Account Suspended
 
Drives: SuperCharged 2SS/RS IOM MN6
Join Date: May 2009
Location: CA
Posts: 5,101
not a stumble...just a cam lope you are feeling at idle. It is normal.
ffrcobra_65 is offline   Reply With Quote
Old 02-18-2010, 05:09 PM   #14
pk1225
 
pk1225's Avatar
 
Drives: '68 SS396, '02 SLP SS, 2010 2SS/RS
Join Date: Nov 2009
Location: Spring, Texas
Posts: 71
heh my brother, an old Pro Gas racer himself, commented on a "miss" in my idle. I thought it just sounded a little choppy, still sounds that way.
pk1225 is offline   Reply With Quote
Old 02-18-2010, 06:30 PM   #15
Roger Ramjet
Motor Head
 
Roger Ramjet's Avatar
 
Drives: CTS-V
Join Date: Feb 2009
Location: So MD
Posts: 494
Quote:
Originally Posted by pk1225 View Post
heh my brother, an old Pro Gas racer himself, commented on a "miss" in my idle. I thought it just sounded a little choppy, still sounds that way.
I agree with your brother. It is a miss. To the untrained ear it sounds like a cam lope. A 203/211 duration cam on a 117 LSA - HAS NO LOPE because it has very little valve open overlap.

The sound comes from the ECM dropping random fuel injector pulses while maintaining 550 RPM idle. This is done to reduce idle smog emissions.
__________________
History Camaro's: 83, 93, 95, 98, & 10.
Roger Ramjet is offline   Reply With Quote
Old 02-18-2010, 07:33 PM   #16
6DEAN9
 
6DEAN9's Avatar
 
Drives: 2010 2SS/RS M6
Join Date: Jan 2010
Location: Alta Loma
Posts: 190
Thanks to everyone.
__________________
6DEAN9 is offline   Reply With Quote
 
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Gran Turismo 5... No Camaro? 5thGenOwner 5th Gen Camaro SS LS LT General Discussions 111 12-06-2011 10:06 AM
What's considered a Muscle Car? SyN General Automotive + Other Cars Discussion 125 09-25-2010 12:04 AM
4-Sale 2001 Z/28 Show Car A4, t-tops 01pewterz28 Autos For Sale / Wanted 10 08-12-2010 08:26 AM
Oil Change Ramp mjlash22 Mechanical Maintenance: Break-in / Oil & Fluids / Servicing 17 01-21-2010 10:40 PM
The first week with un-pink camaro! (a review with pics) pinkcamaro10 5th Gen Camaro SS LS LT General Discussions 31 07-02-2009 07:54 PM


All times are GMT -5. The time now is 02:52 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.