Help! I'm an idiot! Seafoam?!

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bigwhitleystyle

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Where the crap is the brake booster line on my 03 Denali. I pulled what I thought was it, but it didn't cause a change in the idle and wasn't creating much of a vacuum. A thorough explanation or a picture would be amazing. Thanks everybody, excuse my ignorance.
 

bigwhitleystyle

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I read that thread already. I'm not trying to be difficult, I'm a rookie. The only black box i see is the fuse box. I don't see any hoses running into it.
 

ballsie

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This is my 04 Yukon SLT.. Not a Denali, but im sure we have the same brake set up... Here is the hose your looking for... This is just inside the engine compartment directly in front of the steering wheel....

brake.jpg
 

bigwhitleystyle

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This is my 04 Yukon SLT.. Not a Denali, but im sure we have the same brake set up... Here is the hose your looking for... This is just inside the engine compartment directly in front of the steering wheel....

brake.jpg
You're the man. Thats the one I thought it was. Any reason why it wouldn't be creating much of a vacuum or change in idle when I disconnect it?
 

ballsie

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Not sure why... I have only used seafoam on my little nissan pickup - and it was creating quite a strong vacuum when i pulled it off.
I could be wrong.. I just ran out there an looked really quick. Its the only vacuum hose around there.
 
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Yuke2K

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As long as there is at least some vacuum there, you should be fine. You don't need much to suck the seafoam in.
 

greengumby

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On that model of the engine I used the vacume hose labeled in yellow

she smoked like it was on fire :)

brake.jpg


it's also a simple pull off and it has plenty of suction
 
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