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

[Doubeleive]

Cleaned the throttle body and maf and new air filter, doesn't look like it was ever done, cheaper to buy the injector cleaner by the gallon anymore since I use it on all the vehicles 12oz per tank full once in a while, this thing runs pretty good but I do notice a very slight hesitation usually cleaning the intake and some injector treatment for a few tanks smooths it out

 

[Doubeleive]

Gave her a couple quick 110mph 1/4 mile runs, only got up.to 138 that's a win!, 80deg ambient
After sitting idling it went up to 144 which is still good

 

[the 18th letter]

Had an intermittent rubbing/grinding noise in rear passenger area when I picked up my truck from AC repair last week. Inner splash guard was missing a grommet. on one hand I'm glad it was simple but... nvm I'll just leave the other hand out of it this one time.

 

[Doubeleive]

replaced the drivers window switch one button was sticky, must have been like that since new tried to fix it but the same button is sticky no matter what position i put it in.
put a 2 chamber flowmaster on it, didn't make a whole lot of difference at all I think it needs a cai to livin it up.

 

[Jeff_]

Programmed it with the superchips f5, turned off the limiter and afm used there trans tune. This has the 5.3 so it should do around 136-137 now took it up to 115 to verify but not enough runway to get anymore out of it, the f5 allows tpms adjustment by the way. Also allows you to adjust the throttle response like a pedal commander

Do you have an aftermarket driveshaft?
I’ve read that our factory driveshaft will rattle themselves to shreds fairly easily above 100mph for any sustained amounts of time.

 

[Doubeleive]

Do you have an aftermarket driveshaft?
I’ve read that our factory driveshaft will rattle themselves to shreds fairly easily above 100mph for any sustained amounts of time.

no, that's rubbish. I mean I guess it "could" happen but it's unlikely they sure do not make anything different for the PPV's
I can't tell you how many hours I have driven well over 100, it's a lot, hell I hit a 100+ daily, multiple times a day....

 

[Doubeleive]

when you are up at 130+ then it seems kind of sketchy lol, never know whats going to happen once you are there and beyond my concerns then are more towards the tires than the drive line. GM knows how fast these can go, the oem limiter is generally based on the factory tire rating, if you raise the limiter raise the tire rating as well.
the Tahoe PPV's usually have goodyear RSA's which are v rated. I personally run the Goodyear eagle sport a/s which are also v rated but are a 20" tire with a little more sidewall.
tires are speed rated by testing them at there rated speed for *** amount of continuous hours, so even if you go over the rated speed for a short period you are probably fine i'm sure it happens all the time everywhere.

 

[Doubeleive]

ordered new rotors for it, these ones are only marketed for the 08-10 ppv's tahoe's but fit all 1500's with few exceptions
I have had them on the silverado for 3 years already still work fantastic

 

[Sparksalot]

Installed the thermostat bypass for the transmission View attachment 407102

Did mine this morning. I hate these quick connections. I thought everything was peachy. Idled until it started warming. Went for a test drive, and the one toward the top popped loose. F#$&&king mess. Deputy pulled up thinking it was on fire.

Got under and the line snapped in. Audibly and by touch. Had some fluid with me so added it. Started limping home. Almost there and that connector popped again.

 

[Sparksalot]

Did mine this morning. I hate these quick connections. I thought everything was peachy. Idled until it started warming. Went for a test drive, and the one toward the top popped loose. F#$&&king mess. Deputy pulled up thinking it was on fire.

Got under and the line snapped in. Audibly and by touch. Had some fluid with me so added it. Started limping home. Almost there and that connector popped again.


View attachment 407404

In case anyone needs the quick connectors, they are:
GM 19210848
NAPA 730-5088
Dorman 800-727

Any parts searches will probably need to be for a 2014 Tahoe.

 

[Doubeleive]

Did mine this morning. I hate these quick connections. I thought everything was peachy. Idled until it started warming. Went for a test drive, and the one toward the top popped loose. F#$&&king mess. Deputy pulled up thinking it was on fire.

Got under and the line snapped in. Audibly and by touch. Had some fluid with me so added it. Started limping home. Almost there and that connector popped again.


View attachment 407404

you have to be sure those lines are inserted properly all the way, you can do it by putting the clip on first then snapping the line in or push the line in and then put the clip back on

 

[Sparksalot]

you have to be sure those lines are inserted properly all the way, you can do it by putting the clip on first then snapping the line in or push the line in and then put the clip back on

I did. I tried to reuse the old ones. Apparently the snap rings got distorted so wouldn’t keep the line in place.

I found replacements for the entire connection, then reassembled the mess. It’s holding now.

 

[Doubeleive]

I did. I tried to reuse the old ones. Apparently the snap rings got distorted so wouldn’t keep the line in place.

I found replacements for the entire connection, then reassembled the mess. It’s holding now.

ya if the snap ring looks out of shape or bent at all I toss them out as they can't be relied on to work properly, over time I have collected a few spares I keep in my tool box

 

[Doubeleive]

has anyone put HID bulbs in the stock halogen projectors? I know how to do it have ran them in other vehicles for decades just wondering if these are prone to melting if HID's are used. my 18 silverado has stock hid projectors and these look pretty similar design so should be ok but figured I would ask the community first.

 

[RST Dana]

Yes. Found them after research on Amazon.

 

[Jroby42]

has anyone put HID bulbs in the stock halogen projectors? I know how to do it have ran them in other vehicles for decades just wondering if these are prone to melting if HID's are used. my 18 silverado has stock hid projectors and these look pretty similar design so should be ok but figured I would ask the community first.

HID no, I've run the Morimotos 3.0 H11 LED bulbs and Diode Dynamics in the fogs and my light intensity, reach, and cutoff are solid. I believe the Denali's/LTZ/Premier utilize the HID and would presume that the projectors themselves are the same across the trims, but I could be wrong.

 

[Doubeleive]

HID no, I've run the Morimotos 3.0 H11 LED bulbs and Diode Dynamics in the fogs and my light intensity, reach, and cutoff are solid. I believe the Denali's/LTZ/Premier utilize the HID and would presume that the projectors themselves are the same across the trims, but I could be wrong.

the stock halogen bulbs suck, I have pretty much everything I need to convert them to hid just probably need a harness adapter and some bulbs, this 1LT trim didn't come with fogs but I can add the harness and switch and probably put in some diode dynamics ss3's they are pricey but worth it.

 

[CMoore711]

@Doubeleive its so much less stuff and less wiring to go LED. And the non-hid OEM projectors respond very well to quality HID bulbs.

@STORMIN08 has posted some great pics on the forums of his light output with the Morimoto 2-stroke 3.0 bulbs

Check his pics in this thread here:

Low beam head lights are yellow.

My 2017 Tahoe LT has about 81K miles on the clock. Not having the truck very long I don't know what the head lights should look like. At night they project a yellow light down the road and they really don't do much for lighting up the road or shoulders of the road. The truck does not have fog...

www.tahoeyukonforum.com

 

[Sparksalot]

Programmed it with the superchips f5, turned off the limiter and afm used there trans tune. This has the 5.3 so it should do around 136-137 now took it up to 115 to verify but not enough runway to get anymore out of it, the f5 allows tpms adjustment by the way. Also allows you to adjust the throttle response like a pedal commanderView attachment 406969

Got mine this week. Messed with it a bit today. Limiter, AFM, and throttle response to start.

 

[Doubeleive]

Threw a cheapy $200 cai on it the spectre 9006 made by k&n but it's the bottom of the barrel brand, lol and it shows in the engineering. Reviews say the filter falls off so put a set screw in it and found that the adapter that goes thru the heat shield would be a problem also so I put a couple screws in it to mount it to the shield like the better built cai's are designed, all said and done it seems to be ok. I will have to pop the hood after putting some miles on it and double check everything