Thread: LS3 rough idle
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Old 05-10-2010, 11:20 PM   #1
HeaterMan
 
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Drives: 2018 PP GT
Join Date: Mar 2010
Location: PNW
Posts: 264
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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