Can someone identify this for me please

[Rueger]

Recent valve cover replacement. P0174 shortly after. Part is sucking air

 

[SpareParts]

It's a red circle. Best i can do with the info provided.

 

[2016Dom]

Vacuum for an option that I don't know for what, but is normally closed

 

[Rueger]

Vacuum for an option that I don't know for what, but is normally closed

Thank you

 

[rdezs]

It's missing the vacuum cap for sure.

 

[DoubleDingo]

It's missing the vacuum cap for sure.

I was going to say, it appears to have had something on it, the end is clean compared the rest of it.

 

[Fless]

Looks like the same as this one that wasn't too long ago. It’s déjà vu all over again.

Need help: P0171 and P0174 codes

Took Yukon (2010 XL 1500 w/5.3 liter engine) to shop to have rear main seal and pan gasket replaced. Got it back and it suddenly started throwing the 2 codes mentioned. They said they took apart my intake to do an oil pump pressure test. So far, I've taken the intake off, cleaned it, cleaned...

www.tahoeyukonforum.com

 

[Rueger]

Looks like the same as this one that wasn't too long ago. It’s déjà vu all over again.

Need help: P0171 and P0174 codes

Took Yukon (2010 XL 1500 w/5.3 liter engine) to shop to have rear main seal and pan gasket replaced. Got it back and it suddenly started throwing the 2 codes mentioned. They said they took apart my intake to do an oil pump pressure test. So far, I've taken the intake off, cleaned it, cleaned...

www.tahoeyukonforum.com

Déjà vu indeed. Don’t know what it’s called but I plugged it off cleared the codes and it hasn’t come back. Good eye and thanks for post