Sup Mooseknuckles,
Yes it is a push to connect fitting. I had the same thing on my LQ4 swap. You will hade to push the blue ring inward and pull the plug out, no tools required. If you want to use it, like I did for the brake booster, you can buy the actual GM Brake booster Nipple from the stealership. The part number is GM 12559760. Hope this helped
