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05-10-2010, 11:20 PM
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#1 |
 
Drives: 2018 PP GT Join Date: Mar 2010
Location: PNW
Posts: 264
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LS3 rough idle
I have noticed that since day one my LS3 has a rough idle. almost as if it has a lean miss. sometimes it's worse than other times. I know some guys say it's because of the big cam but i don't buy it. I know what a big cam sounds and feels like and this aint it. if it were an issue with cam duration it would have a slight rhythm which i dont have. anybody have any info on this problem? i cant believe a fuel injected car with this mild a cam doesnt idle smooth.
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05-11-2010, 12:04 AM
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#2 |
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ou mai gad
Drives: SW 2SS x2 Join Date: Feb 2010
Location: MX
Posts: 643
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my car idles like a GM hot cam in a LT1... I like it... but yes its a bit rough...
Also, everytime I cold start it, it farts once or twice...
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05-11-2010, 12:10 AM
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#3 |
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Camaro SL,UTs
Drives: 2010 Camaro SS/RS #16429 Join Date: Sep 2006
Location: South Jordan, UT
Posts: 7,357
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That's the LS3. Nothing wrong. It's awesome huh?!
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05-11-2010, 12:15 AM
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#4 |
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Drives: 2018 PP GT Join Date: Mar 2010
Location: PNW
Posts: 264
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I know what an awesome idle caused by overlap and duration feels and sounds like and this aint it.. even my buddy who is a tech said it feels like a lean miss.
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05-11-2010, 12:26 AM
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#5 |
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Camaro SL,UTs
Drives: 2010 Camaro SS/RS #16429 Join Date: Sep 2006
Location: South Jordan, UT
Posts: 7,357
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Your Camaro is broke then. Take it to the dealer. Keep us posted on what they say.
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05-12-2010, 02:52 PM
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#6 |
 
Drives: red jewel 2010 camro 2ss/rs Join Date: Sep 2009
Location: wildwood MO
Posts: 139
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my l99 dose that everyone is telling me its just how the ls3 is, its a 6.2 not a 3.5 6
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05-12-2010, 02:54 PM
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#7 |
        
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might be regular.. but take it to a dealer if a tech says somethin is wrong
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05-12-2010, 02:55 PM
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#8 |
          
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rough idle is good
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Jannetty Racing JRE Street Package
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05-12-2010, 02:59 PM
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#9 |
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good when nothing is broken
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05-13-2010, 09:22 PM
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#10 |
Drives: Transformers Edition Camaro 2SS/RS Join Date: Jan 2010
Location: Mass
Posts: 1,048
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I test drove both. The LS3 idles rough, and the L99 does not. Some reasons are the cam is different, and a manual idles rougher because it doesn't have a toque converter to absorb the virbrations.
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The Yellow Camaro Club
 http://www.camaro5.com/forums/group.php?groupid=128 Northern Massachusetts & Southern New Hampshire Camaro Club  http://www.camaro5.com/forums/group.php?groupid=127 The mother of all supercharger questions thread  http://www.camaro5.com/forums/showthread.php?t=77958 My 2010 Camaro Review  http://www.camaro5.com/forums/showthread.php?p=2025442#post2025442 2010 Transformer Edition Camaro L99 Auto    |
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05-14-2010, 10:23 AM
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#11 |
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Rumbly Bumble Bee
Drives: 2010 2SS Camaro Join Date: Aug 2009
Location: DFW
Posts: 1,468
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My LS3 has idled rough since I bought it. As a matter of fact, EVERY LS3 that I test drove idled rough. Good luck with getting it fixed! Doesn't affect driveability whatsoever.
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2010 RALLY YELLOW 2SS 6M
-OBX Longtubes FTW! |
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05-14-2010, 10:29 AM
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#12 |
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Drives: 2010 IBM Camaro SS Join Date: Jun 2007
Location: DFW, Tx
Posts: 1,157
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My L99 has occasional roughness to the idle, like little spurts of rough then back to normal. It doesnt sound like anything is wrong, just can feel it a bit.
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05-14-2010, 11:00 AM
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#13 |
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Romanian Outlaw
Drives: 13 ZL1 , 14 Silverado Crew Cab Join Date: Apr 2010
Location: Texas Baby
Posts: 1,082
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And it feels gooooodddd!!! Love tha idle
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[/SIGPIC]
 2013 Camaro ZL1 M6 |
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05-14-2010, 11:02 AM
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#14 |
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Romanian Outlaw
Drives: 13 ZL1 , 14 Silverado Crew Cab Join Date: Apr 2010
Location: Texas Baby
Posts: 1,082
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Yall should get cutouts and then it sound like u got a mini cam in it!!! Lol
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[/SIGPIC]
2013 Camaro ZL1 M6 |
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