Hi Everyone,

Been looking for the past 1.5 hours online to see what it is called
1999 (old body) 5.7 Vortec tahoe

When you stand in front of vehicle behind the drivers side headlight.
Has vacuum on it. 2 bigger tubes and small line goes to bank 1 first and then from there to bank 2.

The small hose going from this to the engine was cracked in several places so I replaced it last night.

Had / have check engine light with lean bank 1 and cylinder 6 misfire. Would this have fixed this issue? (light is still on but I guess it has to reset itself



Figured it out: AIR pump

 

evap charcoal canister?

I'm just guessing here...

https://www.google.com/search?q=evap...w=1600&bih=822

Can you upload a photo of it for us?

 

.....

 

Thanks for the replies guys . yes as mentioned I figured out it was the sec. AIR pump.

Still got a lean bank 1 and miss on nr 6 though......