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

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the_tool_man

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So, I’m not sure what’s going on with my transmission. It seems to “grab and let go” repeatedly; almost like surging. This happens at low speed (5mph) and light throttle and when the trans is cold or been sitting for a while.

I’m at 138k miles. Only maintenance done to the trans was a full fluid replacement and filter change. It was not “backflushed”.

What joys await me?


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Mine's done that since I bought it at 98k miles. I thought it was normal.
 

Drok

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So I finally got around to getting a bluetoof fm transmitter, and when i was connecting it to my phone i saw one for a gm hands free connection. It asked for a pin and i dont have one. Before i go finding out the pin can i play music over this or is it just for a phone call ?
 

Tonyrodz

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So I finally got around to getting a bluetoof fm transmitter, and when i was connecting it to my phone i saw one for a gm hands free connection. It asked for a pin and i dont have one. Before i go finding out the pin can i play music over this or is it just for a phone call ?
Try "0000" or "1234".
 

wjburken

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So I finally got around to getting a bluetoof fm transmitter, and when i was connecting it to my phone i saw one for a gm hands free connection. It asked for a pin and i dont have one. Before i go finding out the pin can i play music over this or is it just for a phone call ?
If you have Bluetooth in your 2010, I’m pretty sure it’s just for calls. That’s what our 2013 is. Your FM transmitter is a separate deal and once connected to your phone, just set the frequency and tune your radio in. The FM transmitter that we got my son for Christmas also works for hands free calling.
 

Drok

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If you have Bluetooth in your 2010, I’m pretty sure it’s just for calls. That’s what our 2013 is. Your FM transmitter is a separate deal and once connected to your phone, just set the frequency and tune your radio in. The FM transmitter that we got my son for Christmas also works for hands free calling.

thats what i thought but was being hopeful haha. Yeah i bought the transmitter cause I was tired of the aux cord deal.
 

Rocket Man

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Just Fishing

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So, I’m not sure what’s going on with my transmission. It seems to “grab and let go” repeatedly; almost like surging. This happens at low speed (5mph) and light throttle and when the trans is cold or been sitting for a while.

I’m at 138k miles. Only maintenance done to the trans was a full fluid replacement and filter change. It was not “backflushed”.

What joys await me?


Sent from my iPhone using Tapatalk

So I assume since your sig says 2010, you have the 6 speed?

It could be a slight miss causing it, or your valve body needs some service.
the pressure switches usually need to be rebuilt or the techm (control computer) replaced.

There are also lots of improvements for the valve body while you have it out...

How handy are you? :)

I did mine proactively after doing a bunch of reading about the 6 speed...
then tuned the converter lockup out of the lower gears via hp tuners.
 

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