What did you do to your NNBS GMT900 Tahoe/Yukon Today?

[Doubeleive]

WTF do you have a blower on that thing because that’s what The Beast gets and it friggin hauls ass lol.

lol, no and I have calmed way down from my breaking trans and rear end days, that's about a 6 month average I haven't cleared it in a good while

 

[Rocket Man]

lol, no and I have calmed way down from my breaking trans and rear end days, that's about a 6 month average I haven't cleared it in a good while

Holy crap that’s terrible! I have a helluva lot of fun in order to get that crappy of mileage...has it always been that bad?

 

[Doubeleive]

Holy crap that’s terrible! I have a helluva lot of fun in order to get that crappy of mileage...has it always been that bad?

it just recently dropped from 10, it is about 1/2 city and 1/2 highway trips of maybe 10 miles, my average highway speed is probably 85-90. I do drive it fairly hard it's a 6.2 so you know gotta have some fun

 

[swathdiver]

oh and this

View attachment 223548

Ethanol or gasoline? LOL

Those short runs are killer on mileage.

 

[the_tool_man]

oh and this

View attachment 223548

Vacuum leak? Check fuel trims maybe.

 

[Doubeleive]

Vacuum leak? Check fuel trims maybe.

I looked at them briefly a few days ago, I think they said something like -2.50 or 2.50 or less off the top of my head (they appeared to look like others I have seen on here before), would it do any good OR be beneficial to reset them?

 

[Doubeleive]

Ethanol or gasoline? LOL

Those short runs are killer on mileage.

I have been running just premium, but the last couple tank I filled with mid grade because premium has been about $4.16 and mid grade 4.02 and $4 a gallon will suck a bill down and then some. truck runs real good, I don't think I have any issue's other than a heavy foot, the v4 mode is off and it's awd so I imagine that takes a small nibble too

 

[gooffeyguy]

pulled the center dash speaker out again and re-did my foam padding support fix, the foam padding was just loose inside and the speaker was bouncing up and down again so I folded the foam padding wrapped it in tape and then double sided taped it to the bottom of the speaker now it is nice snug again, now the speaker supports the dash instead of the dash supporting the speaker causing it crack more. Also added a positive wire directly from the alternator to the 2nd battery (like the early nbs's are setup), mobile 1 oil change, tire rotation, and got a free car wash.

View attachment 223546 View attachment 223547

How do you get to that center speaker? Does the grill just pop off?

2001 Yukon SLT
2012 Yukon Denali XL
2011 Yukon Denali RIP 5/20/18

 

[swathdiver]

I looked at them briefly a few days ago, I think they said something like -2.50 or 2.50 or less off the top of my head (they appeared to look like others I have seen on here before), would it do any good OR be beneficial to reset them?

They're fine, don't bother. They move around anyway. Ever seen them as you fuel up? Mine often go to -25 but do not set off codes as it is relearning after a fueling event. Freaked me out until I remembered.

 

[Doubeleive]

How do you get to that center speaker? Does the grill just pop off?

2001 Yukon SLT
2012 Yukon Denali XL
2011 Yukon Denali RIP 5/20/18

Ya it has 4 clips just like the the pillar covers, only it comes off much easier, I just used a small flathead and pried it up real careful about the middle of the side