× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: AC valve cores
Posted to Technical Tips Forum on 11/15/2016

Pressurize system with N2 first. LOL

I generally use a mini needle noise. Login to read more.