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

[j91z28d1]

I won't know if a new one will fix it until tomorrow whenever Amazon delivers it. I am just assuming that it is the problem, in the 2nd video when I had it revved to 1700rpm the grams are only showing 13 on the maf. Can't really get good run with the tech2 connected I think I need a new connector it will loose connection with the slightest bump

hopefully it works.

I don't know forsure what my g/s are at 1700 no load. and being a 6.0 hybrid it wouldn't be a good comparison. maybe another truck can take a look to see what's normal. I do know the rpm can be high but if there's no load, like say a free Rev that g/s are much lower than say 1700rpm under load.

what that number should be thou, I have no reference.

bummer about the tech 2 cord.

 

[Doubeleive]

on my silverado it reads 2.12lb/s at 2000rpm, on the yukon it reads 2.45lb/s at 2000rpm

 

[Grady_Wilson]

I changed the oil even though it only had about 2,500 miles on it.
Figured it was needed since it got warm while I was pulling the moving trailer up long grades.
I noticed that when the temp went up the oil pressure dropped slightly so I knew the oil was getting thinned out due to the temps it was reaching.
Oil was very dark and I am glad I changed it.

 

[j91z28d1]

on my silverado it reads 2.12lb/s at 2000rpm, on the yukon it reads 2.45lb/s at 2000rpm

my math must be wrong. is 2.12lb/s 961 G/s?

seems high.

 

[Fless]

my math must be wrong. is 2.12lb/s 961 G/s?

seems high.

The Innova is reading in lb/minute, not seconds.

 

[j91z28d1]

ahh

so 16g/s. that seems pretty close to what he was getting.

 

[Doubeleive]

i put lb/s instead of lbs, still seems high compared to the silverado. In any case trying to figure out what the hell is wrong, hopefully the new maf shows up early today
the best way to explain it is if I baby it like super granny it will eventually get up to speed but if I give it any pedal it just dogs out. I guess when the new maf shows up I will install that and connect a fuel pressure gauge and see what happens.
any other of suggestions?, previously I was checking other things like the map sensor which seems to have been reading correctly.
I might try and work on the tech2 connector and see if I can get it to not loose the connection so easily.

 

[Doubeleive]

I think I have a solution for my tech2 connection problem I have a obd2 splitter cable with around 4ft of extension length so I can set it where it won't get bumped or anything while driving.

 

[j91z28d1]

fuel pressure would definitely explain it.

but I'd expect to see that on the fuel trims maxed out but didn't notice.

fingers closed its the maf.

 

[Doubeleive]

fuel pressure would definitely explain it.

but I'd expect to see that on the fuel trims maxed out but didn't notice.

fingers closed its the maf.

me to, if it is still doing the same thing I guess I can do a drive log with the autocal and see if blackbear can see anything. when it first starting throwing a cat code I sent them a file and they said everything looked fine, but it has progressed since then.

 

[mikez71]

not the greatest video but is this my maf dogging me out ?

Looking at the graphs, and watching the response.. nothing stands out to me.
(Of course I've only looked at my own logs briefly..)

Honestly sounds similar to my knock retard (loose motor mount) issue as far as bogging...
Definately look for knock retard..

 

[Doubeleive]

Looking at the graphs, and watching the response.. nothing stands out to me.
(Of course I've only looked at my own logs briefly..)

whats wierd is with the other maf sensor installed it ran slightly better but was throwing a code for maf and misfire, and my previously (was) good maf makes it run worse but no codes. makes no sense. I guess if the new one makes no difference then I can rule that out....

 

[Geotrash]

Finally had time over the weekend to give the '07 a fresh ceramic spray wax. I use Griot's Garage 3-in-1 Ceramic Wax, and it's pretty good. The water beads on the finish for 6 months or more afterwards. She cleans up well for 17 years and 247K miles. She spent most of her life in Arizona, so that helps. Not a spot of rust anywhere, and the frame and suspension still look new. Not having a commute and it never seeing snow or salty roads, also helps.

Now the dilemma: We have that new addition to the fleet: a 2018 Suburban 3500 HD, which means we now have THREE of these big beasts. Our son is 16 and working on his license, but isn't particularly thrilled about driving such a big vehicle. My wife likes the idea because she knows it's safe. It's not worth much to sell either. So, do we keep it? Do we try to trade someone for something smaller? Or do we sell it and buy something like a RAV4 for the kids?

I have so much time and love invested in this thing, and it's in tip-top shape such that I would drive it to Alaska tomorrow, without hesitating. My heart says keep it and hand it to our son. My only hesitation with that is he's not a car guy, isn't particularly thrilled about driving to begin with, half-asses things when he doesn't feel like doing them (all normal teenager stuff), so I worry that he won't take the kind of care of it that I have.

Oofta. Might just need to practice radical acceptance here. Lol.

 

[89Suburban]

Finally had time over the weekend to give the '07 a fresh ceramic spray wax. I use Griot's Garage 3-in-1 Ceramic Wax, and it's pretty good. The water beads on the finish for 6 months or more afterwards. She cleans up well for 17 years and 247K miles. She spent most of her life in Arizona, so that helps. Not a spot of rust anywhere, and the frame and suspension still look new. Not having a commute and it never seeing snow or salty roads, also helps.

Now the dilemma: We have that new addition to the fleet: a 2018 Suburban 3500 HD, which means we now have THREE of these big beasts. Our son is 16 and working on his license, but isn't particularly thrilled about driving such a big vehicle. My wife likes the idea because she knows it's safe. It's not worth much to sell either. So, do we keep it? Do we try to trade someone for something smaller? Or do we sell it and buy something like a RAV4 for the kids?

I have so much time and love invested in this thing, and it's in tip-top shape such that I would drive it to Alaska tomorrow, without hesitating. My heart says keep it and hand it to our son. My only hesitation with that is he's not a car guy, isn't particularly thrilled about driving to begin with, half-asses things when he doesn't feel like doing them (all normal teenager stuff), so I worry that he won't take the kind of care of it that I have.

Oofta. Might just need to practice radical acceptance here. Lol.

View attachment 434891

Maybe find it a new home with one of your cohorts here.

 

[Grady_Wilson]

Finally had time over the weekend to give the '07 a fresh ceramic spray wax. I use Griot's Garage 3-in-1 Ceramic Wax, and it's pretty good. The water beads on the finish for 6 months or more afterwards. She cleans up well for 17 years and 247K miles. She spent most of her life in Arizona, so that helps. Not a spot of rust anywhere, and the frame and suspension still look new. Not having a commute and it never seeing snow or salty roads, also helps.

Now the dilemma: We have that new addition to the fleet: a 2018 Suburban 3500 HD, which means we now have THREE of these big beasts. Our son is 16 and working on his license, but isn't particularly thrilled about driving such a big vehicle. My wife likes the idea because she knows it's safe. It's not worth much to sell either. So, do we keep it? Do we try to trade someone for something smaller? Or do we sell it and buy something like a RAV4 for the kids?

I have so much time and love invested in this thing, and it's in tip-top shape such that I would drive it to Alaska tomorrow, without hesitating. My heart says keep it and hand it to our son. My only hesitation with that is he's not a car guy, isn't particularly thrilled about driving to begin with, half-asses things when he doesn't feel like doing them (all normal teenager stuff), so I worry that he won't take the kind of care of it that I have.

Oofta. Might just need to practice radical acceptance here. Lol.

View attachment 434891

Your situation is similar to mine with my 2002 Altima.
I bought it new and it now has 250k miles but it runs like a top and the AC blows super cold.
The car isn't worth much but I, too, would jump in it and drive it across the country in a minute.
It is tough to let something go that you know is dead on reliable and has been taken such good care of for so long.
You certainly don't need three of those beasts, good luck with whatever you decide to do.
It's not an easy choice.

 

[j91z28d1]

I have a hard time selling stuff. if I had the storage space I would still have every car I've ever owned lol.


but I will say selling my 96 thru this board was really nice. it went to a home where the guy cares about it. sends me pics from time and time and asks questions. he's rebuild the front end, lowered it on nice wheels and polished the paint. has looking nice and he drives it alot, something I wasn't doing after picking up the 2011. so I would say if you sell it, try here to someone that will appreciate it over like random Facebook market place even if you end up selling it for a little less that way.

 

[Doubeleive]

I have reasonable suspicion to believe a single cable pickup is best for a young man
1. he can't carry many [passengers/friends all over, a girlfriend is enough
2. It can be used for work, hauling junk, garbage, weeds, tools whatever for some side money here and there
3. low maintenance vehicle and less likely to break down
4 if it's a stick shift even better, less likely to be phone distracted

 

[Fubar0715]

Having a stick does reduce the chance of theft - how many of the less mature crowd can drive a stick these days...

 

[Doubeleive]

Having a stick does reduce the chance of theft - how many of the less mature crowd can drive a stick these days...

growing up pretty much everything we had was a stick and I drove stick for years, seems like 2nd nature to me. they are scarce anymore though

 

[Geotrash]

I have reasonable suspicion to believe a single cable pickup is best for a young man
1. he can't carry many [passengers/friends all over, a girlfriend is enough
2. It can be used for work, hauling junk, garbage, weeds, tools whatever for some side money here and there
3. low maintenance vehicle and less likely to break down
4 if it's a stick shift even better, less likely to be phone distracted

I can confirm that this is a good idea, except for one thing: I had a single cab '81 GMC Sierra 1500 in high school, but it had a cap on the back of it. That and a $10 air mattress made for lots of good times in the summer.

I'm one of those guys who lives in quiet fear that the increasing commonality of DNA testing for genealogy reasons will turn up that I have actually have a kid somewhere else. Lol. The risk is low though because if I'd ever known about it, I would have done all I could to support them.