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

[Doubeleive]

Guess I get the fun project of replacing the pressure sender. Yaay

Should I look for a specific brand or just any from the parts store?

I was just watching a video on replacing the sender with a socket and wobble socket, there is also a lisle socket for it I believe as well, the guy did it in like 5 minutes, I think I saved it
lisle 13250

 

[gooffeyguy]

And I just placed a Summit order this morning

I'm guessing it's still OK to drive?

 

[Doubeleive]

And I just placed a Summit order this morning

I'm guessing it's still OK to drive?

ya, unless you hear metal on metal lol

 

[gooffeyguy]

That 80psi on the gauge actually is reading 129psi in the Torque app

 

[Geotrash]

That 80psi on the gauge actually is reading 129psi in the Torque app

That should be enough.

 

[gooffeyguy]

So should I replace the screen that's under the pressure switch or just remove it? Why is it there?

 

[Doubeleive]

So should I replace the screen that's under the pressure switch or just remove it? Why is it there?

I think it is put there to keep the sensor from getting clogged, some people replace it, some people take it out.
if it's not that hard I would probably just replace it, just do like the guy does in the video.

 

[Geotrash]

So should I replace the screen that's under the pressure switch or just remove it? Why is it there?

I removed my screen, but I also don't have the AFM system any more, and don't know if it is necessary if you still have AFM to protect the lifters of AFM system somehow.

 

[pwtr02ss]

I replaced the sensor and the screen the first time. The screen clogged up a second time and I didn't put it back in. I had DOD shut off in the tune though. I'm not sure why its there but I'm betting there's a million of them on the road without one.

 

[Bill 1960]

To me that’s indicative of a sludge problem in the engine when a screen in the pressurized oil gallery is clogging. The more I read about failures in these engines my opinion continues to shift toward dirty oil being the root cause, not DOD per se. I suspect GM set the oil change intervals too long. Of course if there’s a failure beyond the warranty, and they sell a new car, is that really a failure? Or planned obsolescence.