2011 Tahoe Dead Spot In Throttle

[fyathyrio8]

I have a 2011 Tahoe with just under 13k miles on it. I have owned it about a year, but have recently noticed a sort of jerky throttle when accellerating or just cruising around at 40mph. So, when stopped, I put it in neutral, and rev'd the engine a little. When slowly pressing the gas pedal down, it revs to about 1000-1100 RPM, then pauses (sometimes the RPMs actually dip), and then it continues revving normally.

I know, there are a lot of people who talk about hesitation being normal - but this isn't hesitation... it's in the middle of the rev, not the beginning. Further, I am confident this did not occur until recently.

I have taken it to a dealer (trying to take advantage of the warranty) - and was told that since it's not throwing any codes, there's nothing to go by. What a load of crap. If I smash a tail light, I don't need a CEL to tell me something is wrong - but I digress.

Anyways, anyone have any experience with a similar problem?

 

[GREECO]

I understand your frustration with the dealer and the “no code, no problems†attitude. My 2013 Tahoe with 3800 miles vibrates and shakes at idle. I’ve had it in several times to 3 different dealers and they refuse to acknowledge the problem. They run a quick diagnostic check and tell me that there are no codes and I have nothing to worry about. They tell me the vibration is normal and to be expected with a V8 engine. It’s a load of crap. It’s disappointing that this is the type of quality you get in 60K Chevy SUV. Although I love the look and comfort of the Tahoe, I will be trading it in or selling it before the warranty expires.

I guess this is not much help with your problem but I understand what you are dealing with. Good luck.

 

[samotahoe]

tps. but there also might be a service bulletin for this soon sounds like because they are just too lazy to do anything about this

 

[fyathyrio8]

When I suggested that, I was told "it would throw a code" and "that's one of the most common codes thrown".

I don't really know how a 'dead spot' would throw a code - the phrase "garbage in, garbage out" comes to mind.