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

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mikez71

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Supposedly Ben Charles knows what you need to do to prevent REP mode with throttle mapping...
but won't disclose in public forum.

[email protected]
 

Charlie207

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Supposedly Ben Charles knows what you need to do to prevent REP mode with throttle mapping...
but won't disclose in public forum.

[email protected]
I wish I had invested in the HP Tuners ecosystem a while ago, when I had more time to tinker.
 

j91z28d1

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I messaged him, and then found out he was booted off the Corvertte forums for allegedly scamming people. :rolleyes:

I'm also contacted a dyno shop kinda far from me (there's nothing in NH near me) to see if they can do dyno/road tuning. I think my issues are just beyond what email tunes can deal with, and requires a tuner in the driver's seat to observe everything in real-time.

In the meantime, I installed fresh wipers on all three arms, and threw in a new deep air-filter. It was even made in the USA!


does it still have the same delay after being off throttle if your in say m5?
 

RooTBeeRthe1st

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Try to get some pictures of the broken fan shroud that arrived, I believe there is glass fiber, but I'm still going to play with some heat and see what happens.
Also found this BB sitting in the groove on the front of the fan. Odd

And then I realized that the second shroud that I bought also is cracked, right on a seem from the mold I assume. In the very middle of the two fans. I'll make something work for sure.
 

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mountie

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Try to get some pictures of the broken fan shroud that arrived, I believe there is glass fiber, but I'm still going to play with some heat and see what happens.
Also found this BB sitting in the groove on the front of the fan. Odd

And then I realized that the second shroud that I bought also is cracked, right on a seem from the mold I assume. In the very middle of the two fans. I'll make something work for sure.
( 4th photo )..... That could also, be a bearing ( from a bicycle , or something like that ? )
 

Doubeleive

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Try to get some pictures of the broken fan shroud that arrived, I believe there is glass fiber, but I'm still going to play with some heat and see what happens.
Also found this BB sitting in the groove on the front of the fan. Odd

And then I realized that the second shroud that I bought also is cracked, right on a seem from the mold I assume. In the very middle of the two fans. I'll make something work for sure.
for that center break you could get a piece of rectangular aluminum or mild steel, cut it into (2) 4" strips, drill a hole on each end and use it as a brace for that break right in the center, drill corresponding holes on each side of the break and bolt it on. That will be stronger than trying to bond it back together, which you could apply also with some epoxy.
i'm poor I have always figured out ways to fix things if it is at all possible.
you can do whatever to it right there as nothing will be touching it.
with the inside being curved you could bend a couple washers the same angle and use a couple stand-offs or short sleeves, unless you can round off the bracing metal with some kind of tool for the inside. or just use a couple big bent washers on the inside I don't think it is critical area that will continue to come apart just needs to be braced to keep from wiggling at all.
broken1.JPG
 

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