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

[Doubeleive]

 

[Fless]

Probably woulda stayed up if he took the MAP sensor out.

Or if he'd have sprung for the levitating version. Higher trim package.

 

[BG1988]

Let me guess....we should drill anchors into the concrete and use chain binders to securely attach the vehicle down. Tell me what in the f**k is going to keep a truck from falling off jack stands in a 7.1 earthquake? The shit you say, Brent. Holy crap you kill me.

it's not too hard to keep it from falling... use ramps

or stack some steel rims under(with tire)
if the tires are off type of work

doing that will buy you some space.

 

[PG01]

LMFAO

 

[Rocket Man]

it's not too hard to keep it from falling... use ramps

or stack some steel rims under(with tire)
if the tires are off type of work

doing that will buy you some space.

 

[Incognito]

I’ve never done this myself. Aren’t the tranny pans on these GM trucks notoriously difficult to get off because of the exhaust pipe or something?

I’m a glutton for punishment Hopefully I can pull the exhaust down far enough with some persuasion.

I need to do that. I assume the transmission pan doesn't have a drain plug. So I'll have to add one.

Nope, no plug. The pan needs to come off to change the filter anyways and clean out the magnet.

 

[DaRosa218]

Replaced the MAF, MAP, Knock Sensor x2, removed tune and placed stock airbox back on to try and diagnose this madness my Yukon decided to do. When accelerating from a stop or under a load, falls flat on its face, bogs down and can here it popping through the intake. Idles absolutely fine, just only under acceleration. Only codes on my GM Tech 2 scanner is P0328 for a Knock Sensor Circuit High Voltage Bank 1. Replaced both knock sensors, cleared code and comes right back up.

I am lost on what it could be, my dad thinks I got a bad batch of fuel. I went through 1/4 tank with no problems then just hit out of no where.

 

[BG1988]

welcome to my ignore list

 

[BG1988]

Replaced the MAF, MAP, Knock Sensor x2, removed tune and placed stock airbox back on to try and diagnose this madness my Yukon decided to do. When accelerating from a stop or under a load, falls flat on its face, bogs down and can here it popping through the intake. Idles absolutely fine, just only under acceleration. Only codes on my GM Tech 2 scanner is P0328 for a Knock Sensor Circuit High Voltage Bank 1. Replaced both knock sensors, cleared code and comes right back up.

I am lost on what it could be, my dad thinks I got a bad batch of fuel. I went through 1/4 tank with no problems then just hit out of no where.

did you check the wires hot short to signal possibly

 

[Idriveaho]

Have you tried running injector cleaner through it? My parents had a 2000 gmc savanna van with the old 5.7 tb. One day it did what your going through. Could barely get passed 1/4 throttle to get up to speed. Changed out plugs wires and some other things I can’t remember. Took it to my uncles mechanic at the time. Ran what I think was Techron injector cleaner through it. Fixed it. Maybe that will help.