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

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89Suburban

Bull in the china shop
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Do you just extract it from the reservoir and replace with new fluid or is there a drain in rhe rack somewhere?

2001 Yukon SLT
2012 Yukon Denali XL
2011 Yukon Denali RIP 5/20/18
This is how I did it so it’s just a partial change. Just did mine a few weeks ago too.
 

Rocket Man

Mark
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Do you just extract it from the reservoir and replace with new fluid or is there a drain in rhe rack somewhere?

2001 Yukon SLT
2012 Yukon Denali XL
2011 Yukon Denali RIP 5/20/18
You remove the return line from the reservoir and route it to a bucket, with the front suspension hanging, then turn the wheels side to side to pump all the fluid out. Then hook everything up, refill and bleed. There’s videos out there, maybe @iamdub can link one.
 

Doubeleive

Wes
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Do you just extract it from the reservoir and replace with new fluid or is there a drain in rhe rack somewhere?

2001 Yukon SLT
2012 Yukon Denali XL
2011 Yukon Denali RIP 5/20/18
that's what I did I just taped one end of the pump line to a milk jug so it wouldn't pop out mid pump and make a big mess, once it was empty I just refill it, I jacked up the front just so the wheels are off the ground and start it up and turn it lock to lock about 5 times and repeat, takes about a gallon to get it all "clear" again if you haven't ever done it, I did it last April the first time and I assume it had never been done so that fluid was about 7 years old, this time since it has only been about a year I could have got away with doing about 3 quarts it was coming out pretty clear but I went ahead just did almost the full gallon. use lots of rags it's basically mineral oil it reportedly will eat paint so just wipe up whatever gets spilled right away kind of hard to not get it everywhere when it's dripping off the pump tube inside and out.
 

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