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

[Rocket Man]

Funny, I just went through all my maintenance records for the Yukon and couldn’t find I ever bought new O2 sensors and no service invoices showing even one was replaced.

So I decided I would order 4 Delco OEM sensors from RA and replace them all. When I went on their site, they label both part numbers they sell for my model year as Downstream.

Did you run into that when you got yours? I suspect Denso makes them for Delco, might just get those.

Look at the connectors, upstream are different than downstream.

 

[wsteele]

Look at the connectors, upstream are different than downstream.

Good tip. I also went to the Denso listing and cross referenced the OEpart numbers. Interesting in that Denso has a 30 day warranty and OE 2 years unlimited miles. OE obviously a little more, but all still way cheaper that my local NAPA, like half.

 

[George B]

Right side is on.

 

[gooffeyguy]

Right side is on.

View attachment 272119

Make sure to check the ABS connections that are located on the frame rail right below the top mounting bolt. With them behind the bracket and hard to see, people have a tendency to disconnect them unintentionally with the wrench then wonder why they're getting lights and error messages on the dash when done.

I didn't have a problem with them though. I was aware of them and was careful and watched what I was doing

Lol

Sent from my SM-G930V using Tapatalk

 

[wjburken]

Right side is on.

View attachment 272119

Double check your ABS connections on top of your frame rails when your done.

 

[Doubeleive]

Funny, I just went through all my maintenance records for the Yukon and couldn’t find I ever bought new O2 sensors and no service invoices showing even one was replaced.

So I decided I would order 4 Delco OEM sensors from RA and replace them all. When I went on their site, they label both part numbers they sell for my model year as Downstream.

Did you run into that when you got yours? I suspect Denso makes them for Delco, might just get those.

GM GENUINE 2133533 {#12589321} order 2

GM GENUINE 2133538 {#12590847, 19209815} order 2
left & right are the same pre & post cat
so 1 each go on pre cat and 1 each go post cat

 

[George B]

Left side with new compressor. Glad I had the tubing kit. That line was too short for my liking.

 

[wsteele]

GM GENUINE 2133533 {#12589321} order 2

GM GENUINE 2133538 {#12590847, 19209815} order 2
left & right are the same pre & post cat
so 1 each go on pre cat and 1 each go post cat

Did that about hour ago, thanks! Along with a new air filter, I am too embarrassed to say how long it has been since I changed it and what condition it was in when I checked last night. I guess there is a reason my dealer is so cost effective. I gotta quit my "on autopilot" approach to maintaining this thing.

 

[George B]

Then theres this.

 

[gooffeyguy]

Left side with new compressor. Glad I had the tubing kit. That line was too short for my liking.

View attachment 272140

Did you replace all the tubing, or just the one short one?