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

[Charlie207]

So the bolts I circled in green are the ones I thought were "fixed" or "threaded" holes that would not spin out on you or require a wrench on top? The ones in red I am sure they will spin.

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Yep.....

I'm an absolute ******* moron. I was trying to undo the red-circled nuts on the driver's side. Fuuuuuuuuu

 

[mikez71]

Did something easy while failing to figure out why my truck runs like poop..



Also replaced AC belt. Compressor was surprisingly gummy feeling when turned by hand. (pulley spins freely)

 

[Doubeleive]

Did something easy while failing to figure out why my truck runs like poop..

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Also replaced AC belt. Compressor was surprisingly gummy feeling when turned by hand. (pulley spins freely)

I think that's normal, but could be wrong

 

[Geotrash]

I think that's normal, but could be wrong

It is, but it could be different at full speed. It's a scroll style compressor so if it's loaded with too much oil (for example, thanks to one of those parts store R134a cans), then it may be binding at speed.

 

[Doubeleive]

you can take the ac belt off and take it for a drive to rule it in or out

 

[mikez71]

ya, figured the clutch does work so when its off it really cant be dragging unless the belt tension binds it up?

 

[Just Fishing]

Normal unless things don't work is my thought.

 

[mikez71]

Struggling to get my O2 sensors out!

Any tips/tricks? Liquid wrench, wire brushed.. still tight!

I haven't even gotten the secondaries loose.. Primary O2 on driver side, above driveshaft, looks like a real pain! Do I need to remove driveshaft?
Struggling to pull the wiring plug off the chassis even! (plastic through hole mount).
Why did they make the sensor plug mount to chassis instead of the harness end?

I'm tired already!

 

[07Burb]

Struggling to get my O2 sensors out!

Any tips/tricks? Liquid wrench, wire brushed.. still tight!

I haven't even gotten the secondaries loose.. Primary O2 on driver side, above driveshaft, looks like a real pain! Do I need to remove driveshaft?
Struggling to pull the wiring plug off the chassis even! (plastic through hole mount).
Why did they make the sensor plug mount to chassis instead of the harness end?

I'm tired already!

LOTS of heat. I'll sit there with map gas directly on that sumbish and it always relents. Once you get it out, though, you won't want to touch the old sensor or wrench for a while so let them cool off or wear really good gloves LOL

 

[Doubeleive]

Struggling to get my O2 sensors out!

Any tips/tricks? Liquid wrench, wire brushed.. still tight!

I haven't even gotten the secondaries loose.. Primary O2 on driver side, above driveshaft, looks like a real pain! Do I need to remove driveshaft?
Struggling to pull the wiring plug off the chassis even! (plastic through hole mount).
Why did they make the sensor plug mount to chassis instead of the harness end?

I'm tired already!

crows foot or 02 sensor socket, the upper drivers side is a real b*tch.
probably while hot is your best bet, you will want some big gloves those hot cat's are no joke
the 02 sensor socket will have a outer bolt fitting if you have stripped the sensor at all already
you will probably have to get something on there just right and use a big breaker bar to crack it loose.