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

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Subanbur

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Exactly like you said , loud at cold start. I did it myself , I cut the old exhaust and threw it in the garbage where it belongs. Just kidding I still have it. My straight pipe civic is louder lol but not raspy just very bassy . I was kinda afraid that it would be obnoxious but it’s almost perfect. I’ll try to film it when I’ll get the chance.
 

Doubeleive

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anybody see this before? it's not the battery, it's not the battery connection (ground) or high resistance cables
it only does it when cold, I loose all cluster function, or cluster backlight flickers, radio audio, sometimes hvac fan or hvac digital control reboots.
dealer is ordering a new cluster but I don't think that is the entire issue.
https://drive.google.com/file/d/1t-Z_DY65EcZQ0jTqq7f2ilV4-6Rc50uC/view
 

Doubeleive

Wes
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Not sure if this helps but another complication with the ground system

https://www.gm-trucks.com/forums/topic/128601-sensor-on-ground-cable/
No this is a connection issue somewhere I think, maybe the bcm or some other module, mostly I get audio cut-off or if I am playing my ipod it will stop playing until i hit next or I will have no audio output at all yet the radio is on just fine, it gets progressive when it is cold to include the hvac fan cuts off and then cuts back on 5 seconds later, digital hvac controls reboot on the radio screen, cluster light flickers, cluster shuts off and on like you are restarting the truck. battery is new, battery fuse panel and positive cable is new. high battery cable resistance has been mentioned but it only really does it when it is particularly cold out in the morning then it might randomly do it once the rest of the day.
drives and shifts perfect, starts every time, no engine problems, no other issues at all.
 

Doubeleive

Wes
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dealer just called me back and said they think it is the cluster because the cluster wont program and if the cluster is loosing connection and rebooting it would affect audio. so I guess I will find out next week when the cluster comes in if that was it or not, seems weird to be just the cluster
 

PG01

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nglauer

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dealer just called me back and said they think it is the cluster because the cluster wont program and if the cluster is loosing connection and rebooting it would affect audio. so I guess I will find out next week when the cluster comes in if that was it or not, seems weird to be just the cluster
They over complicate everything anymore.... I remember my very first vehicle was a bare bones 1983 S-10. No A/C, vinyl bucket seats, rubber floor and FM Radio. It had the 2.8l in it and aside from an always leaking rear main seal.. you couldn't kill it. I'm not sure I could survive without A/C anymore... but I'd buy a basic stripped down version of my 2015 tahoe. I would be happy with the most basic of electronics and a good ole carbureted small block LOL. I guess I just need to buy an old K5.

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