2015 V8 acceleration slow?

[lobsterbake]

Hello

We have ordered a 15 GMC Yukon and I have driven a demo twice and I don't know why but I have a hard time getting it to go. I have a 14 Cruze Diesel and it feels like a rocket compared to the Yukon. I know the Cruze is lighter but I don't get why the Yukon acts like it doesn't want to go. Anyone else had this experience? I was tempted to look into a Denali with the bigger engine but a long wait and way more $$$. I am going to be towing about 5000 lbs and a little worried about it even though specs say it will tow 8100 lbs.

Thanks

Mark

 

[Goodinblack]

Im sorry

Did you just compare a small car to a full size SUV????

LOL

Power to weight ratio has a lot to do with that

 

[hosseface]

Plus some electronic throttles feel slow to accelerate.

 

[lobsterbake]

It must be the electronic throttle as there is a major delay. Cruze is much lighter but just feels like it wants to go. Yukon acts like the brakes are half on IMHO

 

[07Burb]

Get it tuned and that delay will go away

 

[Steve1081]

I agree that the throttle tip in is geared more toward fuel economy. But, it has plenty of power and acceleration in my opinion when you really get on it.

Another factor is how quiet it is. That makes it "feel" slower. I would recommend these trailer package for the 3.42 rear end if you are going to tow.


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[Kerrville15]

These definitely have more giddy up than the previous models. Our new Yukon feels faster than our '07 with a tune. Like Stephen said, I think the quietness of these things fools you too.

 

[b4z]

OP is not the only one complaining about throttle tip in. It's a com one complaint.

 

[RioRedCobra]

+1 on the tune. Livernois just got thier Tahoe in and should be working on one shortly, as well as everyone else.

 

[Pockets]

My 15' XL feels faster than my 07' XL to me. Idk... it might just be in my head though

 

[twhitechurch]

Get a tune edge is designing one right now

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[sprayfoamer]

I agree, acceleration feels slow. A tune should take care of it, if they will reprogram the acceleration curve. Just mash the accelerator, and you will be fine! haha!

 

[malones99]

It's faster than my 99 suburban, j/k. My dads 12 ram Hemi is slow also due to the fly by wire throttle body, we live in CA so it might be an emissions thing, the govment is alway up our a$$ in California!

 

[wheeler23]

Acceleration

I went from a 2011 Denali with the 6.2L to a 2015 Denali XL with the new 6.2l DI.... what a huge difference! I also test drove a 2015 Youkon XL with the new EcoTec3 V-8 engine (I think it's a 5.3L DI) and i thought it had more pull than my 2011 6.2L. But for a 6000 lb. SUV the new Denali XL is very impressive in my opinion. Or, if it's not fast enough, you can get a vette for the same $$$$...... just a littler harder to haul the family in.....

 

[motorwerks]

They need a tune. My old Cadillac Escalade with a 6.2L had more initial punch. The Denali feels a bit lazy and requires more throttle tip in.

 

[Cmicasa the Great XvX]

They need a tune. My old Cadillac Escalade with a 6.2L had more initial punch. The Denali feels a bit lazy and requires more throttle tip in.

Are U comparing a new Denali engine to a broken in Escalade one? Not a good gauge. Typical GM fashion is that the engine will suddenly wake up even more when U hit the 15K mark. I'd swear my Impala has a V8 in it instead of the 3.6L once I hit 15K.

 

[daktari]

I agree. There is something seriously wrong with the throttle response and transmission combo. Feels like driving with the brake on. Lots of power there but doesn't feel like it.

I have two F-150's, one with 5.0 V8 and one ecoboost. Both much smoother and feel more powerful. A disappointing aspect of the Denali.

 

[mattluttrell]

I've noticed that my 2002 with 160K has more pep than my 2015 with the 5.3.

I can't compare apples to apples yet though because I can't get on it yet. The truck definitely feels heavier and like there is less torque right now.

At 355hp rating I expect this to change.

 

[Cmicasa the Great XvX]

I've noticed that my 2002 with 160K has more pep than my 2015 with the 5.3.

I can't compare apples to apples yet though because I can't get on it yet. The truck definitely feels heavier and like there is less torque right now.

At 355hp rating I expect this to change.

Its the Electronic Throttle. I bought the INTUNE.. installed the changes and I'd swear I'm driving my Vette.

 

[daktari]

Where do you purchase "intune" from?