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Rough Idle Well, I took it into a different chevy dealership to have them check it out, they ran pulse widths, and duty cycles - all came out within normal limits. They said it looked fine and that some of the V8's will tend to run a little rougher than others in idle. After looking at...

Hey Nitan - did yours just gradually get better and then go away? Or did it go away after some significant work or event? Klydel

Well I dropped off the Tahoe last Thursday. The Service Tech said that if it's some kind of fuel injection issue, then they wouldn't be able to fix it. That the fuel injector is balanced by the intake and emission sensors (something like that), and that the computer on the car controls the...

I'm taking it back on Thursday, bought it in Frisco (Texas) and we live about an hour from there. I want to make sure I take it by when the service guy is available to speak to. I was sitting in the tahoe today waiting in a drive thru, and couldn't believe the shaking. Drives me crazy that...

Thanks for all the advice Thanks for all the advice, checked the spark plugs, seemed all snug and in place. I'm taking it back tomorrow (Monday) and telling them they have to fix this and won't accept it until they do. It bothers me because last time I was there they said they don't even feel...

Also, Got in it today and noticed at 2-3000 rpm, the car still shakes. So it's not just in idle. Hope they figure this out, cause I like my Tahoe, it's got exactly what I wanted in features and looks, too bad the engine runs like crap. One more thing - When I drove their demo , seemed...

Who diagnosed the problem? Was it an obvious diagnosis for the symptoms the car was making? Or are there a million possible reasons for a new engine to slightly shake? Thanks

I just bought a brand new Tahoe 2008 - When I'm in idle (Park/Braked/Or moving under 3 mph) - The engine block shakes and causes the entire Tahoe to shake. You can feel it sitting in the car. It's somewhat subtle usually, but at other times it's very noticeable. I took it back to the...