I am having some issues with my tahoe.
 

2007 LTZ Autoride

1. Rough idle in Park. The car shakes intermittently every 2-3 seconds even after warm up.

2. I'm riding stock 20's and Ijust recently lowered the truck yesterday with Mcguaghys 2/3 kit,now it feels like I'm in a low rider. It's so bouncy (especially in therear) I feel like I'm gonna get motion sick. Doesanyone know if it will settle after time or will it get less bouncy once I put the 24's on?

Thanks for your help guys.

RE: I am having some issues with my tahoe.
 

Rough idle is what I have too. It is annoying. Dealer says - operates as designed.
That to me is a crap desing. Someone told me that it is due to strict California
regulations, but sounds like since u are in Nevada ( I assume by your nick) , California strict emmission regulation (and adjustments to the computer) is not the cause of rough idle.After all my Dodge is also made for CA and it runs smooth.
Not sure about the ride. My Tahoe rides smooth stock. I think it will get worse with 24's if it is bad now.