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

[Sparksalot]

How's the seal between the filter box and fender?

Good point. I wonder if anyone has a part number for that one.

Edit: 22844822

 

[Tonyrodz]

You're running conservative stock timing, the CR isn't sky high and the tighter quench staves off detonation. Don't go WOT to redline while towing a motorhome and you'll be fine for break-in.

Mine had three-month-old 93 in it (fuel loses its octane rating with age) and this is less than an hour after the first start:

Who dat mudda fooka lol??!!

 

[Rocket Man]

Who dat mudda fooka lol??!!View attachment 343888

Wow good eye detective Tony.

 

[Tonyrodz]

Wow good eye detective Tony.

Das whut I does....

 

[Just Fishing]

Took the hoe for a little drive once i had the transmission fluid gtg, taking it easy to seat the rings fully.
lots of stops and go was the plan.
seems once i get into mid throttle i get a reduced power message.
code: p0606

so I'll double check all of my grounds and connections.
probably re-flash the ecm with the tune file for good measure once i'm happy with everything.

Still very odd.

My helper did manage to step on a few things, i have a service airbag light.
I recall him pointing it out to me, so maybe i have a short causing the whole thing?
I can clear the code and it's gtg.


And i did some watching for knocks with the tech2, got a few on a few cylinders.

So i went to the gas station that used to have the race fuel.
none to be found this time, so i topped off with 91.

Why can't this just be easy! lol

 

[Just Fishing]

Oh and i'm digging the low end of the 6.0, much better than what i remember the 5.3 having.

 

[89Suburban]

Who dat mudda fooka lol??!!View attachment 343888

Good man right there.

 

[Doubeleive]

I'm going to miss using words like ****, ****, limp ****, *****, pink taco, ford eco boost

 

[swathdiver]

Who dat mudda fooka lol??!!View attachment 343888

I saw that too! But I can't get his old Vanilla Ice avatar out of my head! LOL

 

[iamdub]

Good point. I wonder if anyone has a part number for that one.

Edit: 22844822

But then you'd still have the same weak factory one. Check this: https://www.tahoeyukonforum.com/threads/growing-up-doesnt-have-to-suck.93510/post-1451015