2017 Yukon vs 2017 Tahoe

[swathdiver]

Well, the GMC is professional grade! If those were in my stable, I would hook them both up to GDS2 software and make a comparison between engine readings.

 

[K2 Kaiju]

In theory, the 3.42 should be peppier, but in reality every truck is different. Drive 2 identical trucks, and 1 will be faster. I have not found the 3.08 to be slow with stock tire size either - it has adapted to my style. Which do you drive more?

 

[Tylus]

are both 4x4 or 4x2 or a mix?

I had a 2015 Tahoe 4x2. I now have a 2017 Suburban 4x4

they should be 100% identical. But they weren't even close. The Suburban was so much peppier and fun to drive. The only thing I can attribute that to is the 4x4. I know in Fords that they remap the throttle for 4x4 action. And after playing with the 'Burb, I've seen it happen. I can't find any literature on this. But the butt dyno shows a complete change in throttle maps and driveability.


also, who drives which vehicle? you primarily for both? or 1 for you, 1 for the wife? remember these have adaptive transmissions. So they literally learn how you drive and shift accordingly. 1 vehicle could be adapted to your wife driving, and when you drive it's confused and not responding as you expect...based on it's learned profiles

 

[GreyStone]

Are the exhaust systems both stock? Does either vehicle have any mods?

 

[pwtr02ss]

Yes Sir
Tahoe has the towing package and the 3.42 axle.

Would that explain the "lazy" throttle response?

I've rented several (6-7) of these in tahoe/yukon platform. Standard and XL. Everyone of them have been different. Some shifted flawlessly and ran like a top. Others were clunky and I really disliked the way the drove. It seems its just the luck of the draw. I'm not sure that anything was "wrong" with any of them, I just think some trucks are better than others, depending on lots of factors.

 

[sealandsky]

If you didn't purchase the Yukon new, perhaps the previous owner had a "tune" done on the engine?

 

[Jeramia]

Same transmissions???

 

[UNOIT]

I've rented several (6-7) of these in tahoe/yukon platform. Standard and XL. Everyone of them have been different. Some shifted flawlessly and ran like a top. Others were clunky and I really disliked the way the drove. It seems its just the luck of the draw. I'm not sure that anything was "wrong" with any of them, I just think some trucks are better than others, depending on lots of factors.

I completely agree, they are all different and one needs to thoroughly test drive each. Styling also plays a role in preference and there’s a few more options in similar trim Yukon vs. Tahoe.


Sent from my iPhone using Tapatalk

 

[BlaineBug]

Cleaning the MAF never hurts. Especially if the previous owner used an oiled air filter like a K&N or something. A contaminated MAF sensor can make an automobile perform like crap.

They specifically sell CRC MAF cleaner just about anywhere. It will not leave a residue behind when it dries unlike brake cleaner or or carb cleaner.

 

[dsh1106]

In theory, the 3.42 should be peppier, but in reality every truck is different. Drive 2 identical trucks, and 1 will be faster. I have not found the 3.08 to be slow with stock tire size either - it has adapted to my style. Which do you drive more?

Currently, I drive both about the same amount. I've owned the Tahoe since Mar 2018 and I just purchased the Tahoe in Feb of this year.