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

[Rocket Man]

I never found a tsb for mine I just came to the conclusion that since the "rear temperature sensor" on a "open circuit" didn't even exist then it must be the firmware, the closest I got was a wiring diagram for "said" sensor from "just answer" that I paid for and oddly enough the diagram was on some amazon server, no mention of it in the service manual AT ALL this was when I discovered there are like 10 of these little small temp sensors all over the truck and I thought one of them must be bad or disconnected or something, glad I didn't tear the whole truck apart but I sure thought about it, I might have if I hadn't got the wiring diagram showing me where it should have been all the way in the back by the rear hatch on the drivers side so I took down the headliner and looked all over for even a wiring harness nope nada nothing there.

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I can’t even find that TSB now, in fact I think it’s listed under “preliminary information” and never made it to TSB status. I have looked through alldatadiy and all my internet history on my iPad and desktop and I can’t find it. But if I hadn’t found it, and the fact that it listed the exact symptoms and the DTC number ( which isn’t even listed on my alldatadiy list of DTC’s, it’s not listed because the truck doesn’t have that sensor) I might still have no AC. I just got lucky because I probably wouldn’t have programmed the module because of what happened the first time I tried. I really got lucky.

 

[iamdub]

Always a clown in the shop.

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Clown? Looks like a game of Whack-A-Mole to me!

 

[George B]

New right side cv going in.

 

[iamdub]

Yes.

Likely from the gasket collapsing from age. They'll dry up, shrink and harden. That's why they start leaking when they're old. It's also why these engines have specific torque specs- it's to crush the gasket just enough to make a good seal and provide a measured amount of tension on the bolts but not deform the gasket.

Looks like I missed all kinds of PA excitement. Wrong gasket, reused original (and collapsed) gasket, had resulting oil leakage, shotgunned it with all new parts...

Is that Dorman VLOM the upgraded design?

 

[iamdub]

lol, I was about to go bust out the tech2 grumble, grumble

That still would've been MUCH better than ripping out the dash to chase a ghost.

 

[Drok]

New right side cv going in.

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ill probably be in that area myself soon. Im hearing some not so nice noises when i hit 50-55 mph and a nice hummmm when i hit the brakes at that speed too. Ughhhh. Lol

 

[George B]

Clown? Looks like a game of Whack-A-Mole to me!

 

[Rocket Man]

Lol

 

[Rocket Man]

That still would've been MUCH better than ripping out the dash to chase a ghost.

No sh*t

 

[iamdub]

No sh*t

All the great ones have been there at least once... or twice...












...a year.