Hello All, Am new here, but have read numerous posts when looking up reference material. Have always been impressed the knowledge displayed here. Can anyone help identify what this part (gold) in the engine compartment is/does on the driver inner fender just below/in front of the master cylinder to the right of the A/C compressor that has dual hoses going into it for a '79 Z28? Mine does not have it and wanted to understand its application. Thanks in advance for all help.