Vacuum and charge

2006 CHRYSLER 300
120,123 MILES • 3.5L • 2WD • AUTOMATIC
Avatar
DADDYA
  • MEMBER
  • 29 POSTS
I have installed a new compressor,expansion valve and condenser with the receiver/drier attached. My question is do I turn the blue and red manifold gauges open when vacuuming? Second question the system is empty do I charge it with the AC and engine on or put refrigerant in without running?
Jun 18, 2017 at 9:03 AM
Advertisement
Avatar
SATURNTECH9
  • ✓ASE Certified Mechanic
  • 30,869 POSTS
  • ASE Certified Mechanic
You vacuum it with both the red and blue valves open. You will charge it only through the low side which is blue. You can charge it with it running if you want. I usually just charge it with it off.
Jun 18, 2017 at 2:24 PM
Avatar
DADDYA
  • MEMBER
  • 29 POSTS
Thank you Sir for the information and Happy Father's Day.
Jun 18, 2017 at 2:51 PM
Avatar
SATURNTECH9
  • ✓ASE Certified Mechanic
  • 30,869 POSTS
  • ASE Certified Mechanic
You are welcome, happy father's day to you too. please tell all your friends about us.
Jun 18, 2017 at 2:58 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.