Sierra Evap Question

[Krooz]

After getting my truck back from major repairs (see bad day for the Sierra), I noticed an occasional "thut-thut-thut" sound coming from the engine compartment. I traced it to the hose connection noted in the attached image. The hose was loose enough to jiggle but when I pushed it up tight against, what I guess is the solenoid(?) it went away. I taped it tight so the sound was gone but within a few days the CEL popped on, I called OnStar and it's the P0442 code... small Evap leak - pretty darn sure it's the loose connection I taped up.

 

I've only recently got the truck back and am reluctant to go spend time at the shop even though State Farm will make it right. I believe there's an O-Ring or gasket missing because there's a white clip (under my tape) that secures the hose to the connection, however, it doesn't secure the hose tightly.

 

Does anyone have a part number or such that I can just go get the O-ring or gasket from the dealer Parts Dept and install myself? I could just get them or AutoZone to then clear the code.

 

Thanks for any advice

 

Krooz

 

[Krooz]

Well, I talked to the dealership and they told me there is no o-ring and if the connection isn't tight then the end fastener was messed up with the repairs. So - new hose w/connection coming tomorrow - $22 that I'll bill back to the repair shop.

 

Krooz