2011 Sierra 4X4 SLE Idle issue

[glss421]

New to the truck scene. Just bought a 2011 Sierra SLE and love the truck but one thing concerns me...

When stopped, in any gear, I can feel a slight bouncing motion throughout the whole cab of the truck. It's worse when I'm at a stop light and I ease off the brake to advance forward (still keeping my foot on the brake, but the letting the truck roll forward). I'm thinking this is normal but I'm not sure. I haven't noticed any erratic spikes in idle on the gauge.

Anyone have a similar issue?

 

[Molson02536]

New to the truck scene. Just bought a 2011 Sierra SLE and love the truck but one thing concerns me...

When stopped, in any gear, I can feel a slight bouncing motion throughout the whole cab of the truck. It's worse when I'm at a stop light and I ease off the brake to advance forward (still keeping my foot on the brake, but the letting the truck roll forward). I'm thinking this is normal but I'm not sure. I haven't noticed any erratic spikes in idle on the gauge.

Anyone have a similar issue?

If your unsure, take it back to the dealer. Nothing better then warranty and you can also compare it to another 2011 Sierra that is there.

Keep us posted, but from what you have described, could just be the IAC adjusting the engine idle load when the A/C compressor comes on. Check to see if you still have the same issues with the climate control system turned off.

 

[GMC or nothing]

Only thing similiar I have seen is the rotors tend to warp easily on the 10 and 11 models if the brakes are nailed hard a couple of times but that would be noticed while stopping. not when stopped. I too would definately take it to their service dept. good warrenties on them. heck there are 3 years on the Goodyear Wranglers. Can't beat that.

 

[JBB]

I had a similar issue on a brand new 97 silverado with the 350. It really bothered me for the first 1000 miles then I got used to it.

I did bring it to the attention of the dealer who checked it out and claimed that it was normal and just a by product of strict epa rules and gas wise engine. I thought it sounded like hogwash at the time but another new one did the same thing.

After 1000 miles I forgot all about it and it didn't bother me at all.

But, I have a 2011 Z71, and it is pretty slick at at idle. I'd definately take yours in and have them take a look.