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

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

Just Fishing

Can't fix stupid
Joined
Aug 30, 2020
Posts
3,993
Reaction score
8,700
Location
Utah
Well my FSM hints that there might be some drain plugs on each side of the block, the picture is terrible.
Can't tell if it's the front or the rear of the engine... lol
 

Just Fishing

Can't fix stupid
Joined
Aug 30, 2020
Posts
3,993
Reaction score
8,700
Location
Utah
Shined around with a flash light, i don't see any such plugs.
The knock sensors look to have a straight shot from my wheel well.

My hope is that i can remove the bolt on each side, let it drain in the driveway.
Then put it back in the garage to start tearing this pig apart.
 

Rocket Man

Mark
Supporting Member
Joined
Dec 25, 2014
Posts
26,006
Reaction score
50,869
Location
Oregon
I flashed the BCM on my Silvy today with the updated tune file from BT Dieselworks after I sent it to Blackbear so Justin could license it to my Autocal. The previous tune was making my Pioneer HU stay on unless I manually powered it down due to some “extended accessory mode” they programmed in. Plus my SWC’s weren’t working. Now all is back to normal. :)
 

Just Fishing

Can't fix stupid
Joined
Aug 30, 2020
Posts
3,993
Reaction score
8,700
Location
Utah
Spent 100 more...
New upper and lower hose, the heater core disconnect tool, and some hose that goes from the water pump to the core...

Still need to figure out the other hose.
Also bought some adapter thingy for the core...
Meh!

Hoe is going to be down for a bit... lol
 

Doubeleive

Wes
Supporting Member
Joined
Nov 7, 2017
Posts
26,533
Reaction score
39,952
Location
Stockton, Ca.

08z71bgm

Supporting Member
Joined
Jul 2, 2020
Posts
758
Reaction score
1,108
Location
Long Island, NY
I flashed the BCM on my Silvy today with the updated tune file from BT Dieselworks after I sent it to Blackbear so Justin could license it to my Autocal. The previous tune was making my Pioneer HU stay on unless I manually powered it down due to some “extended accessory mode” they programmed in. Plus my SWC’s weren’t working. Now all is back to normal. :)
They still haven’t answered me about the total price to get it done.
 
Top