What did you do to your 2015-2020 K2XX Tahoe/Yukon Today?

[tsuintx]

I can't imagine there would be too many differences in the stock tuning between the trucks and SUVs, but I gotta say the Suburban felt almost like a dog compared to my Silverado, stock vs. stock. Not like there was something wrong, but just WAY too soft on any of the responses.

Installed Diablo's canned 87 octane tune, disabled AFM and TM, firmed up shifts etc. yesterday and that thing now feels like it's from a different planet! Can't want to see what DiabLew tune does to it once I put that in there next week.

 

[tsuintx]

Next order of business was Airaid MIT and Elite Engineering catch can. Was also hoping to be able swap the belt tensioner but Amazon is running late. Sounds to me like the pulley is making noise, ordered AC Delco replacement.

Yeah, I need to clean the engine bay a little bit, too.

 

[tsuintx]

Changed belt tensioner and while some of the sound disappeared, I guess it’s time to change the water pump.

Pretty sure the bearing is shot since the pulley has probably 2-3mm play in it. Compared that to my Silverado and that thing doesn’t have any play whatsoever in it.

So... On to the next little project it is. Good that I didn’t pay a whole lot for it so it gives me room to fix these things.

 

[tsuintx]

Looks like I’m talking to myself here.

WeatherTech cargo cover just arrived. Once it’s all settled in, I’m sure it’s going to be great. My wife is a bit of a pig, you know... She already got close to spilling red wine in there.

 

[Tiki]

8 qts of 0w20 goodness.

Priced out a rear black bow tie, $70. Come on GM lol.

 

[Tahoe14]

Check Ebay.

 

[STORMIN08]

i am awaiting my AMI bowties... billet, coated black w/ the milled relief around the bowtie. that relief will end up red, mimicking the SS truck emblems

 

[tsuintx]

New waterpump went in and the rattle is gone. Otherwise easy job except the stupid radiator petcock was in such position that it was almost impossible to grab so that you could turn it. Managed anyway and alls good again.

 

[Tahoe14]

You have done a lot of work. Hopefully you are done for a while. I'm sure you saved some money doing the work yourself.

 

[tsuintx]

Haha! Still need to do oil change and probably will also do rear end while I’m at it. Just something I usually do when I get a new ride to get a baseline.

Tranny fluid has 50K on it, so might leave that alone for a while still.

In addition to fluids, rear shocks are the only ones on the list for now. And plugs. Then the baseline should be set.

 

[sd172]

50k on the trans fluid seems on a higher side for me. I’m doing 40k between flushes and filter changes, but I have a trans thermostat delete mod and max tow oil-to-air cooler. The highest trans temperature I’ve seen this summer was 180.

 

[gat0r]

45k is interval for severe duty schedule on trans fluid.
normal is around 97k

so 50k might be good idea to do in near future

 

[Tahoe14]

tsunitx. shocks should not be too bad since you have an LT vs LTZ which has the Magnetic Ride Control. Hopefully you are checking Ebay, Amazon, or Rockauto for better prices for all the work and all the parts you are purchasing.

 

[sd172]

45k is interval for severe duty schedule on trans fluid.
normal is around 97k

so 50k might be good idea to do in near future

Severe duty can be driving mostly in town vs on the highway. I average 27 mph so far over the last 2 years.

 

[tsuintx]

tsunitx. shocks should not be too bad since you have an LT vs LTZ which has the Magnetic Ride Control. Hopefully you are checking Ebay, Amazon, or Rockauto for better prices for all the work and all the parts you are purchasing.

I'm one of the worst cheap-asses there is, so you can rest assured I will shop for the cheapest price possible. Without sacrificing quality, though. I usually buy AC Delco since I know they will work and the price is not that much more than store brands.

As far as the rear shocks go, I'll go with KYB Gas-a-justs. Not necessarily my first choice, but since that's what the previous owner put in the front just two months ago, I'll do a matching set. The receipt from the shop says rears were leaking, but he declined the replacement. I checked and I wouldn't say they're completely blown or anything, but they do exhibit signs of leaking. Hence, time to swap them out to match the fronts.

 

[RThomasII]

Ordered the Magnaflow 19177 Catback kit for the Escalade on Monday. Excited to see it shipped today . Hopefully by this time next week I'll have some sound clips to share.

 

[STORMIN08]

dressed up the new AMI billet badges...

pics of the install will follow early next week.

 

[CMoore711]

Ordered the Magnaflow 19177 Catback kit for the Escalade on Monday. Excited to see it shipped today . Hopefully by this time next week I'll have some sound clips to share.


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The Magnaflow 19177 system is nice; but it’s still a bit on the quiet side. It’s marginally louder than the stock exhaust. However, it’s one of the few aftermarket systems for the 6.2L L86 models that is offered with 3.5” pipe diameter which is what the factory exhaust pipe size is for the 6.2L L86 models.

Never understood why Borla and Corsa only offer a 3” aftermarket exhaust option for the GM full-size SUV’s . Other than to s save costs and offer the same system for both the 5.3L and 6.2L models.

 

[RThomasII]

The Magnaflow 19177 system is nice; but it’s still a bit on the quiet side. It’s marginally louder than the stock exhaust. However, it’s one of the few aftermarket systems for the 6.2L L86 models that is offered with 3.5” pipe diameter which is what the factory exhaust pipe size is for the 6.2L L86 models.

Never understood why Borla and Corsa only offer a 3” aftermarket exhaust option for the GM full-size SUV’s . Other than to s save costs and offer the same system for both the 5.3L and 6.2L models.[/QUOTE

Thanks for the heads up on the sound.... And I mean that sincerely. Interestingly enough, my Escalade already has a serious rumble with the stock exhaust which surprised me because the Denali was whisper quiet.

In my case though the mod is less about sound and more about that 3.5" pipe performance that you mentioned above. I've been doing a crap load of research and I've read through a bunch of build threads, including the NorcalSS build, and will borrowing from aspects of all of that intel gained to set my own truck up. I've got a local fabricator with some regional/national exposure involved with the project and they will be helping with the build. It will be pretty much the typical supercharger/headers/tune build that has been done before but hopefully with a few wrinkles thrown in. The owner of the shop helping with the build wants me to go with twin turbos in place of a supercharger but I've got a fixed budget of right around $20k (hopefully much, MUCH less) for the project so there's the "best bang for the buck" factor to consider as well.

I might even hop online and pick up where NorcalSS left off with his Hennessey Performance race challenge. Irritating people is my specialty! LOL!!

 

[tsuintx]

Got me stuff to do this weekend. In case I find the time...

Have Rancho QuickLift fronts and RS5000X rears to do on my Silverado, so we’ll see which one gets done first.