What did you do to your OBS GMT400 Tahoe/Yukon Today?

[roy72004]

Let us see the final results man
I want one too

Here's more... Gonna try and finish it today.

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[Big Poppa Pump]

I will be on my back today in the gravel lot replacing all four Oxygen Sensors.

 

[GM iraqi]

Here's more... Gonna try and finish it today.

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Looking good man keep the good work and don't forget pictures :-D

 

[GM iraqi]

I will be on my back today in the gravel lot replacing all four Oxygen Sensors.
View attachment 58047

Sorry for this dumb question but can I know the use of this and what happens if I don't replace mine and how I know if it's time to replace it
Thanks

 

[Big Poppa Pump]

Sorry for this dumb question but can I know the use of this and what happens if I don't replace mine and how I know if it's time to replace it
Thanks

Check engine light. I will probably only change the front two. This is harder than I thought due to rust.

 

[roy72004]

Was only able to finish the stop and "latch", as well as mount it today. Had to work at getting the vehicles started. Neither my powerstroke nor the Tahoe would start. But my dinosaur 1964 Lincoln sa200 welder fires right up. Go figure...

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[GM iraqi]

Was only able to finish the stop and "latch", as well as mount it today. Had to work at getting the vehicles started. Neither my powerstroke nor the Tahoe would start. But my dinosaur 1964 Lincoln sa200 welder fires right up. Go figure...

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So far so good
But I see you replaced the whole rear bumper why didn't you try to build it on top of it
Will it work ?

 

[roy72004]

Check engine light. I will probably only change the front two. This is harder than I thought due to rust.

liberal usage of pb blaster and run the motor good to heat it up, they should come right out. That's how I've always done it.

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[roy72004]

So far so good
But I see you replaced the whole rear bumper why didn't you try to build it on top of it
Will it work ?

Because who wants that ugly pos stock bumper? I sure don't. I'm confused as to why you ask if it'll work? I'm building it to work, why wouldn't it?

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[GM iraqi]

Because who wants that ugly pos stock bumper? I sure don't. I'm confused as to why you ask if it'll work? I'm building it to work, why wouldn't it?

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I'm sorry sorry for the misconfusion I meant will it work if you use the original bumper not the one you are building now