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

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iamdub

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I’m nervous. But just how nervous should I be about this oil cap looking like this.
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That more solidified gunk on the O-ring tells me it may be more than just common condensation. Do you do a lot of short trips?


It’s easy enough to pull a rocker cover and have a look. That will be way more telling.

:signs75:

Pop off a cover and get some answers before serious damage occurs.
 

mattbta

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Tying to install footwell lights. Want to use a pin on the back of the MBEC as demonstrated on another site, but I can't figure out how to get the TPA (terminal position assurance) out so I can slide my metri-pack pin into it. Argh. Made a thread in our electronics section: https://www.tahoeyukonforum.com/threads/mbec-help-back-plug.124715/

Reached out to the OP on the other site, but he hasn't been "seen" since 2019. Long shot there.
 

Sam Harris

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Tying to install footwell lights. Want to use a pin on the back of the MBEC as demonstrated on another site, but I can't figure out how to get the TPA (terminal position assurance) out so I can slide my metri-pack pin into it. Argh. Made a thread in our electronics section: https://www.tahoeyukonforum.com/threads/mbec-help-back-plug.124715/

Reached out to the OP on the other site, but he hasn't been "seen" since 2019. Long shot there.
I did this a couple years ago. I’ll see if I can find my post...

Ok, found my post, but I didn’t say what wire I used. Lol. It was the grey with black stripe that I tapped into.

ETA: I guess you’re asking how to get the pin out, not which wire to tap into. I’m not sure if I pulled that one out, or just tapped it another way. [emoji2369]
 
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mattbta

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I did this a couple years ago. I’ll see if I can find my post...

Ok, found my post, but I didn’t say what wire I used. Lol. It was the grey with black stripe that I tapped into.

ETA: I guess you’re asking how to get the pin out, not which wire to tap into. I’m not sure if I pulled that one out, or just tapped it another way. [emoji2369]
As a last fitch, I know I can tap a wire. I'm trying to avoid that by using a pin into the back of the MBEC as referenced here: https://www.gmfullsize.com/threads/installing-footwell-lights-in-03.104799/post-5720705 Just no clue how to get the darn blue "TPA" out to allow the pin to insert. Teehee. It's supposed to go in the second from bottom 10th spot over.

vppNUZw.jpg
 

Rocket Man

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As a last fitch, I know I can tap a wire. I'm trying to avoid that by using a pin into the back of the MBEC as referenced here: https://www.gmfullsize.com/threads/installing-footwell-lights-in-03.104799/post-5720705 Just no clue how to get the darn blue "TPA" out to allow the pin to insert. Teehee. It's supposed to go in the second from bottom 10th spot over.

vppNUZw.jpg
Never pulled one from there but others I’ve pulled have a tang that needs to be depressed, just like pulling a pin out. Maybe look at the pin you’re inserting, see where the tang is, and slide a pin removal tool or tiny flat tool into the same place along the TPA.
 

Doubeleive

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mattbta

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Thanks guys. I'm actually trying to put the pin IN, not remove it. This blue part the arrow points to prevents the pin from inserting. You can see I damaged it a little fiddling with it. When that part is removed, it allows the pin to insert. Then it slides over the top of the pin to keep it in place. It won't push left out of the way to allow the pin to go in. But I think the only way to do that is to remove the entire white plug but I have no effing clue how to do that. That screw won't come all the way out.

SWoIUDZ.png
 

Rocket Man

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Thanks guys. I'm actually trying to put the pin IN, not remove it. This blue part the arrow points to prevents the pin from inserting. You can see I damaged it a little fiddling with it. When that part is removed, it allows the pin to insert. Then it slides over the top of the pin to keep it in place. It won't push left out of the way to allow the pin to go in. But I think the only way to do that is to remove the entire white plug but I have no effing clue how to do that. That screw won't come all the way out.

SWoIUDZ.png
I understood. The Deutsch connectors I use have those. They click into place but if I grab them with a good pair of needle nose pliers and give them a good yank they pull out. I was saying those might have actual locking tangs like the pins themselves, only on the opposite side as the pin. I would try yanking good on one in au unused cavity that you’re not planning on using to see if it comes out. If not you’ll have to use a pin removal tool like I mentioned to remove the TPA or whatever its called. Maybe use better needle nose pliers.

image.jpg image.jpg
 

Tonyrodz

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I had to pull the battery and bring it inside. The damn thing was frozen!
I guess driving it every other day in sub-zero temperatures isn't enough to keep the electrolyte from separating.
I bought one of those battery heating pads to put in to help keep it warm.
I never knew a battery could freeze like that. Are they ruined once they freeze?
 

NoReverseYukon

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I never knew a battery could freeze like that. Are they ruined once they freeze?
If they freeze solid, they can damage the plates and crack the case. Luckily, mine wasn't that bad.
When I first tested it, the meter said to replace the battery : it is a 800CCA but only registered about 125CCA. But after sitting down in the basement for a few hours, it now only says good-recharge and is reading about 615CCA. When I first shook it, it sounded like slush, and had a lot of frost/ice on the entire exterior.

I think I dodged a bullet - it was only manufactured in Dec 2019. Would have sucked to ruin such a new battery.
 

Doubeleive

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If they freeze solid, they can damage the plates and crack the case. Luckily, mine wasn't that bad.
When I first tested it, the meter said to replace the battery : it is a 800CCA but only registered about 125CCA. But after sitting down in the basement for a few hours, it now only says good-recharge and is reading about 615CCA. When I first shook it, it sounded like slush, and had a lot of frost/ice on the entire exterior.

I think I dodged a bullet - it was only manufactured in Dec 2019. Would have sucked to ruin such a new battery.
do you park it inside in a garage or outside?
 

Doubeleive

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With 3 vehicles and only a 1-stall garage, the Yukon and Dakota stay out in the driveway while the Passat gets the garage.
I was wondering and wondering if a decent sized reptile warming pad placed under the engine compartment would make enough heat to keep the battery from freezing.
 

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