Fox What Is This? Cap I Found On My Engine

[Nixhexxion]

It looks a lot like the blue cap that's on the metal hose this runs left to right above the engine. I'm completely new to working on cars, and found this laying in a crevice while changing the thermo housing.

It is orange, and has an i and a 2 on top.


Edit:
88 gt 5.0.

 

[CarMichael Angelo]

It looks a lot like the blue cap that's on the metal hose this runs left to right above the engine. I'm completely new to working on cars, and found this laying in a crevice while changing the thermo housing.

It is orange, and has an i and a 2 on top.


Edit:
88 gt 5.0.

That is the cap to the high pressure schrader valve to charge/monitor your A/C system.

 

[Nixhexxion]

That is the cap to the high pressure schrader valve to charge/monitor your A/C system.

Thanks mike!