Lost blue "H" plastic cap

[AshesToArmor]

So I was installing the MPFab intake I just got over the weekend and knocked off this little blue cap while muscling in the heat shield. It popped off what I believe to be the A/C line and fell...somewhere. Do you guys know what that cap is for and where I can get a replacement?

 

[4g63gst20]

It's to keep debris from getting in the service port, and eventually into your AC system when a gauge or something is hooked up to that port. You can order replacement on ebay or your local vato zone should have them in the AC section shouldn't be more than $5

 

[AshesToArmor]

It's to keep debris from getting in the service port, and eventually into your AC system when a gauge or something is hooked up to that port. You can order replacement on ebay or your local vato zone should have them in the AC section shouldn't be more than $5

I've seen replacement ones but they look bigger than the one on the Sonic. Are they all universal?

 

[4g63gst20]

That's weird, they should all be universal.
The high side port is bigger than the low side port but there's no difference in size as long as they are r134.

 

[AshesToArmor]

That's weird, they should all be universal.
The high side port is bigger than the low side port but there's no difference in size as long as they are r134.

I bought a set of caps from Advanced Auto and the smaller of the two was too small while the larger one was too loose. Maybe I should just take it to a dealer and have them order one...