What did you do to your NBS GMT800 Tahoe/Yukon Today?

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Bombsquad85

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Did the knock sensor, I take manifold gasket, valley gasket and removed and cleaned the injectors replaced o-rings and cleaned the intake manifold and throttle body. I'm getting a weird creaking sound I hope it's just everything settling back in.

When the butterfly is manually moved does it make strange noises to recalibrate?

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Tonyrodz

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Got a link to a decent one? Plus I have no clue how to install it. I didnt even see any vacuum lines coming off the intake manifold
I bought mine used from a tyf member, but guys like catchcans.com. Easy to install. Iirc, goes between the port where the pvc plugs into on the intake snd the pvc.
 

Sam Harris

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