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

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RooTBeeRthe1st

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190,000 miles oil change!
And I think I am overdoing it at 3000!
Maybe it’s not as important as I think?
Isnt the oil and trans fluid like the spark plugs? Change them once every 100,000mi?

I really should just do 2500mi intervals(thats when im a quart low), but I still do 5,000 and add a quart at 2500.
 

j91z28d1

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That's not what comes up for a gas Yukon. It would help if you'd list your hybrid, if that's what you have, in your signature so we're not chasing ghosts.


hmm they are different. I didn't realize. figured it would all be the same.

I wouldn't have asked about a hybrid specific part.


I forgot sigs are a thing haha. Exclusively a vertical phone user. I should do that.
 
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there's a fresh 08 h-o in the wrecking yard might run out there tomorrow for minute and see if it has anything worth grabbing
it's a ls so probably doesn't have the power mirror motor I need.
I thought you had the Gruven motors and metal gear conversions?
 

89Suburban

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there's a fresh 08 h-o in the wrecking yard might run out there tomorrow for minute and see if it has anything worth grabbing
it's a ls so probably doesn't have the power mirror motor I need.
I need a cap for the wiper arm nut. And the triangle covers for the inner door A pillars and hood hinge covers with the rubbers intact.
 

Doubeleive

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I need a cap for the wiper arm nut. And the triangle covers for the inner door A pillars and hood hinge covers with the rubbers intact.
Found a mirror motor, I was gonna grab both but the passenger side was a plastic motor and a bolt stripped on me, got your wiper cap, the triangles were both broken
1000006076.jpg
 

Doubeleive

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In Cali? No Way!!
I guess I should clarify it had no muffler (deleted), looked like the cat's were there but the recyclers cut them out before they put them out on the yard
was a well optioned LS, but was sort of trashed inside. All I was after was the mirror motor, another guy showed up right as I was leaving he needed a new front end so he scored well it wasn't wrecked, motor had been pulled already and usually if the other parts were not taken then they are usually close by and sure enough we found the complete front bumper intact, radiator and fans all ready to go, he just needed to pull the rack n pinion and a fender
 
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So I'm planning on replacing the exhaust manifold bolts. I have one broken at the rear drivers side and plan on unbolting/removing the manifold to get the broken off bolt out. Should I put in a new gasket when doing this, or do y'all think the existing one will be fine (I know these come with MLS type gaskets).

I see RockAuto sells the GM ones individually and I might just buy one and replace it anyway. Think I might also replace the oil cooler lines while I'm in the area. Mine are starting to look gunky at the transitions
 

RooTBeeRthe1st

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So I'm planning on replacing the exhaust manifold bolts. I have one broken at the rear drivers side and plan on unbolting/removing the manifold to get the broken off bolt out. Should I put in a new gasket when doing this, or do y'all think the existing one will be fine (I know these come with MLS type gaskets).

I see RockAuto sells the GM ones individually and I might just buy one and replace it anyway. Think I might also replace the oil cooler lines while I'm in the area. Mine are starting to look gunky at the transitions
I'm particularly fond of Permatex Copper Spray.
used it on 2 engines so far, no issues...exhaust and head gaskets.
As long as the old gasket looks good, go for it.
But new ones are cheap too...
uarnizioni-utilizzate-ad-alte-temperature-331-ml-1.jpg
 

j91z28d1

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man it seems even the oems can't get good parts these days. one of my buddies just had his 3rd oem gm oil pressure sensor go bad in less than 6 months, on a car that isn't even a daily. one of the 3 was Amazon acdelco, so might have been a fake. the last 2 from rock auto and you gotta pay shipping for the warranty.


he's so over it, he's going to autozone and buying the cheapest thing that have lol.

next one that goes out on me, I might try this aftermarket one. it seems to have good reviews but pricey.


of course of the big name brand sensors in the racing world that's could be adapted to fit, you have a 100psi and 150psi option. gm of course uses a 130psi, so the voltage to psi range is off using any of those.

I need to do a evaporator core that a hassle to get to soon (dash removal) and I have no idea if I waste money on the oem that failed way before it should have or risk and aftermarket like 4 seasons. its not my money, so I don't care about the price, I just don't wanna do it again.

I seem to remember a time when you fixed something and it stayed fixed...and it was easy, now it's way more involved and keeps failing over and over again.


wish I could stick Toyota parts in ford's and chevy's. they are stupid expensive, but to this day I've never had a new Toyota industral part fail before it should have.

/rant
 

mikez71

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Toyota's might be expensive, but it doesn't seem like Chevy parts are any cheaper than Toyota parts..
 

tom3

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So I'm planning on replacing the exhaust manifold bolts. I have one broken at the rear drivers side and plan on unbolting/removing the manifold to get the broken off bolt out.


Come back when you get done with this and let us know how those other bolts came out. Thinking about doing a pre-emptive strike on this too, before those rear bolts actually break. Kind of afraid to touch those bolts though.
 

89Suburban

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So I'm planning on replacing the exhaust manifold bolts. I have one broken at the rear drivers side and plan on unbolting/removing the manifold to get the broken off bolt out. Should I put in a new gasket when doing this, or do y'all think the existing one will be fine (I know these come with MLS type gaskets).

I see RockAuto sells the GM ones individually and I might just buy one and replace it anyway. Think I might also replace the oil cooler lines while I'm in the area. Mine are starting to look gunky at the transitions

Come back when you get done with this and let us know how those other bolts came out. Thinking about doing a pre-emptive strike on this too, before those rear bolts actually break. Kind of afraid to touch those bolts though.

So these come with gaskets installed behind the manifolds? I got one broke off on the pass side front.




IMG_6629.jpeg
IMG_6630.jpeg
 

mikez71

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I have heard of no exhaust manifold gaskets working in some cases.. ('88 turbocoupe)
and it sounds like coppercoat on the headgasket is a common enough..

But I always get new gaskets on everything cause I'm a scaredy cat.

Looks like gasket there? (If you were asking?)
exhman.jpeg
 
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