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

[mountie]

Yes. Should’ve sold it when the trans went. Now I’ve got 10k into a 5k vehicle

Sorry to hear that........ I seem to hear about "issues" with models newer than my '05 XL.....
I don't know all the 'changes' after 2006 models, but I have 180,000 and still no problems....
I feel fortunate.....

 

[Rocket Man]

I washed the Tahoe and Silverado today. The Yukon hasn’t moved in months so it hasn’t gotten dirty enough to warrant a wash. I really need to tear into it to see what’s broken in the drivetrain. Pics lean heavily toward the cool truck because.

 

[89Suburban]

I washed the Tahoe and Silverado today. The Yukon hasn’t moved in months so it hasn’t gotten dirty enough to warrant a wash. I really need to tear into it to see what’s broken in the drivetrain. Pics lean heavily toward the cool truck because. View attachment 454289View attachment 454290View attachment 454291

What happened to the Yukon drive train?

 

[Rocket Man]

What happened to the Yukon drive train?

The supercharger happened to it. Not sure if it’s the trans or what. I’ve been going through some stuff as you know and on a trip to the doctors last winter something broke on a hard 3-2 downshift and she refused to drive a few blocks later. I just parked it at the time and bought the Tahoe to get to my appointments. I haven’t got the courage to get into it yet, mainly because the weather has been bad every time I get a good long break in my treatments. I fear its the trans and if so, its will have to get shipped to Performabuilt in PA from Oregon again. I need to quit trying to do AWD burnouts. No, I WILL quit that. I’m too old to be pulling transmissions.

 

[Pandabird]

One more torture test for the trusty farm truck passed with flying colours. I seriously have nothing bad to say. I've never ever ran a combination of over 5 metric tons this comfortably and I've been in Hiluxes, Scania, Volvos and Land cruisers. I almost anticipated the haul to fail, and still kinda just went with it. But Rosie is a beaut and a true powerhouse. I'm kinda baffled really since this was the actual legal weight (and height for this type of transport) limit over here with steep hills, hard wind and evil brake-checking BMW drivers on the highway.

 

[mountie]

One more torture test for the trusty farm truck passed with flying colours. I seriously have nothing bad to say. I've never ever ran a combination of over 5 metric tons this comfortably and I've been in Hiluxes, Scania, Volvos and Land cruisers. I almost anticipated the haul to fail, and still kinda just went with it. But Rosie is a beaut and a true powerhouse. I'm kinda baffled really since this was the actual legal weight (and height for this type of transport) limit over here with steep hills, hard wind and evil brake-checking BMW drivers on the highway.
View attachment 454343

Deep down inside your "SUV", you are towing with a truck / truck transmission / truck engine / truck suspension !!

You can tow that weight, every day!! Even when you hit 200,000 + miles on the clock !

( Welcome from Florida !! )

 

[Sir_Hiro]

One more torture test for the trusty farm truck passed with flying colours. I seriously have nothing bad to say. I've never ever ran a combination of over 5 metric tons this comfortably and I've been in Hiluxes, Scania, Volvos and Land cruisers. I almost anticipated the haul to fail, and still kinda just went with it. But Rosie is a beaut and a true powerhouse. I'm kinda baffled really since this was the actual legal weight (and height for this type of transport) limit over here with steep hills, hard wind and evil brake-checking BMW drivers on the highway.
View attachment 454343

Whats in the booooooox. Also you needed at least 2 more straps so its safe.

 

[Sir_Hiro]

Did its first oil change under my ownership. Swapped over to 10w30 Valvoline High Mileage cuz its what I run in everything. Noticed that Valvoline HM isnt Dexos Approved anymore. Oh well. But I was noticing low oil PSI prob due to oring blown out but now with the thicker oil shes staying around 40PSI so I call it a win.

 

[89Suburban]

Installed an amp and dual 10" sub box. I keep a roll of toilet paper in the center console tray. It hit's so hard it will walk around the tray. I'll have to put some 3m tape under the license plate to keep it from buzzing the paint off the tailgate.

 

[Pandabird]

Whats in the booooooox. Also you needed at least 2 more straps so its safe.

Spoiler: New toy

 

[Rocket Man]

I painted my hitch cover. I swear every time I order matching paint it comes out slightly different, but maybe it’s the way the light hits it. Also, in case anyone is interested in doing a retrofit I posted some sweet H1 projectors in the classifieds.

 

[j91z28d1]

so it's the brake light switch on the pedal that makes cruise control finicky to set right?

 

[89Suburban]

so it's the brake light switch on the pedal that makes cruise control finicky to set right?

It can be. You can remove it and inspect it. Could be full of dust or lint on the contacts. I cleaned mine up and slapped it back in it's been fine for 3 years or so.

 

[j91z28d1]

It can be. You can remove it and inspect it. Could be full of dust or lint on the contacts. I cleaned mine up and slapped it back in it's been fine for 3 years or so.

worth a shot.

thanks

 

[89Suburban]

worth a shot.

thanks

Let us know how it goes.

 

[Charlie207]

It can be. You can remove it and inspect it. Could be full of dust or lint on the contacts. I cleaned mine up and slapped it back in it's been fine for 3 years or so.

Does that switch kill the throttle? And, if it's sticky, would it cause a lag in throttle response after lifting off the brakes and hitting the gas?

 

[Charlie207]

Added some color to my summer wheels.

Good from afar, but far from good.

 

[89Suburban]

Does that switch kill the throttle? And, if it's sticky, would it cause a lag in throttle response after lifting off the brakes and hitting the gas?

I don’t think so.

 

[Rocket Man]

Does that switch kill the throttle? And, if it's sticky, would it cause a lag in throttle response after lifting off the brakes and hitting the gas?

No. It’s just a brake light switch. The reason it disables the cruise control is because the CC relies on a signal from the brake light switch as one way to disengage the cruise and if the BCM sees a fault in that switch it wont engage the cruise for safety reasons, otherwise if the cruise was engaged and you hit the brakes it wouldn’t disengage and you’d have a run away vehicle unless you could not panic and turn it off manually.

 

[Charlie207]

No. It’s just a brake light switch. The reason it disables the cruise control is because the CC relies on a signal from the brake light switch as one way to disengage the cruise and if the BCM sees a fault in that switch it wont engage the cruise for safety reasons, otherwise if the cruise was engaged and you hit the brakes it wouldn’t disengage and you’d have a run away vehicle unless you could not panic and turn it off manually.

I'm running through the logic tree of why there is a delay when I let off the brake and hit the gas, but the engine doesn't respond for .5-1.0 seconds. It's annoying, and not normal, no matter what anyone else says.

I ordered a new TPS today, so we'll see if the 2008 TPS is the culprit.