[marcbarnhart]

I have a 2009 GMC Canyon with a 3.7L. I did the resonator delete this morning and when I was running the lines I realized that there was only the vacuum line the PCV on the back of the valve cover. There was no smaller line, which I believe is for the Fuel Pressure Regulator. Do the 09's not have this? I just wanted to ask before I start looking further for a line that may or may not be there.

Side note, I have the delete mod all done, drove the truck and runs fine with no issues or CEL. But also looked at the bottom of the resonator box and didn't see anywhere when another vacuum line would even attach.

Special thanks for Home for the quick computer tune and waking my truck up.

 

[FixxxerKH202]

06+ have returnless fuel systems and the regulator is in the fuel tank attached to the pump. No vacuum line for it.

 

[Freeballin]

There are two oil breather lines from the rear valve cover area, one line goes to the rear intake manifold and the other line attaches to the resonator box.

The fuel pressure regulator is inside the fuel tank mounted on the pump assembly so there's no need for a vacuum line.

 

[marcbarnhart]

Super. Thanks for the info.