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

[the_tool_man]

I got to practice my tire changing drill this morning on the way to work. It's a good reminder to cycle the winch occasionally to keep it from seizing, and to check the spare tire pressure. Thankful for TPMS so I could pull over before the tire was damaged.

 

[Geotrash]

We bought a Tiffin Phateon a couple years back…so that whole “deciding it was too much” idea went out the window when purchasing a diesel pusher. We do however have to ensure to use truck stops and never use gas stations. There’s not nearly enough room with a toad attached, plus you can’t back up either.

Those are really nice. How many miles can you go between fuel stops?

 

[Geotrash]

and I wouldn't be having it done now if I wasn't going on a trip thru places where there is nothing around, I think the expected life is actually 165k is when they are known to start failing, i think @swathdiver has a running list
the gmt800's were rated for 100k, dealer told me they don't know what the rating is for the gmt900's but it seems to happen as stated, hell the thing could go 300k you never know. I just don't want to get stuck with my pants down. I already had planned to do it so a pinch of salt in a wound and carrying on. lol

That was a wise decision, although the one in my '07 went 215K before it started talking (fuel pressure regulating problems), and another 5K before I figured out what was happening and had it replaced with an OEM one. Shop only charged me $300 in labor. I was pleased.

Would love to see that list! Should be a sticky.

 

[wjburken]

That was a wise decision, although the one in my '07 went 215K before it started talking (fuel pressure regulating problems), and another 5K before I figured out what was happening and had it replaced with an OEM one. Shop only charged me $300 in labor. I was pleased.

Would love to see that list! Should be a sticky.

My 2007 was at roughly 230K when I started having issues with mine. It would leak down fuel pressure as it sat so I had to try and start it twice. Once to get it almost up to pressure, then the 2nd time to actually start. Was able to time it to when I had an almost empty tank and do it in my driveway.

 

[Doubeleive]

That was a wise decision, although the one in my '07 went 215K before it started talking (fuel pressure regulating problems), and another 5K before I figured out what was happening and had it replaced with an OEM one. Shop only charged me $300 in labor. I was pleased.

Would love to see that list! Should be a sticky.

historically 160k or after is the point when some things start to go goofy, die, malfunction. This doesn't mean it will happen to everyone all at the same time
it's just a "average" of sometimes individual things like alternator, hubs, water pump, sensors, throttle body, knock sensors, seals and gaskets, calipers, etc.
and it's not just gm it's all brands and it is a reason why you will see cars in the junkyard starting with 160k (or more) but a lot of them are around 160k and is unusual to see them with less than that and it is a reason why people will sell them at that point because they do not want to spend the money to maintain them because they feel it will just become a money pit or maybe it is.
Maybe things have changed in the last decade but I used to go to junkyards a lot there are several around me in almost any direction and you could walk around and pretty much knock on wood that most cars out there had at least 160k on them.
I am not trying to be a alarmist or tell anyone to go replace a bunch of stuff, it's just an observation I have seen and have even asked the "old guys" at the yards
if you want to go buy a used engine at a junkyard that's not one that pays for the "fresh" vehicles, then a lot of the engines are going to be around 160k or more with mileage and if they have something with less it's going to cost more.
I am at 160k on the yukon and it is in pretty good shape I maintain it well and I have driven it hard and have already done a lot of things but I know I can expect some things to start going in the future like door lock actuators, window regulators, hatch motor, misc sensors, switches. who knows but I won't be surprised
some people baby their cars never push the pedal hard, never tow, just cruise and hardly nothing ever fails
that is the advantage of buying from a old person that has been gentle on there vehicle.

 

[swathdiver]

and I wouldn't be having it done now if I wasn't going on a trip thru places where there is nothing around, I think the expected life is actually 165k is when they are known to start failing, i think @swathdiver has a running list
the gmt800's were rated for 100k, dealer told me they don't know what the rating is for the gmt900's but it seems to happen as stated, hell the thing could go 300k you never know. I just don't want to get stuck with my pants down. I already had planned to do it so a pinch of salt in a wound and carrying on. lol

No, I don't have a concensous on our fuel pumps but several of us have been reporting our fuel pump trims to compare their conditions to one another. Mine used to be rock solid at 43.5 psi all the time, even at WOT. Then one day it slipped a psi while accelerating and came back up and now waffles around while driving but only 2 psi.

The trim is in the 1.5s now and there is a new one sitting on my shelf in the garage. Soon as the weather cools off it's going to get changed before we head west to Monument Valley.

Will also be changing out all of my u-joints too. Almost 190K and nothing wrong but now have the press and tools do it at home properly and don't want any issues on that 5K mile trip.

 

[swathdiver]

I think I'll stop by the dealer and have them check the cap part number. had to believe the online stuff saying 20psi.

 

[Doubeleive]

View attachment 402994

YA weird I thought it was 15psi, but looks like it is 20psi

 

[swathdiver]

YA weird I thought it was 15psi, but looks like it is 20psi

I couldn't remember either and looked it up real quick!

 

[j91z28d1]

View attachment 402994

nice.. yeah that's crazy high sounding.

I'm going to replace it for the heck of it when I do the T's.