AC Compressor clutch does not engage

1999 PONTIAC BONNEVILLE
159 MILES
Avatar
HKUKLA
  • MEMBER
  • 2 POSTS
AC on and blower blowing, but warm air. Clutch is not engaging. Checked fuse under the dash and larger fuse on the firewall. Both are good. Could use a schematic of the wiring for the AC to trace down where the voltage went. And/or suggestions on wherelse to look. Thanks!
Apr 1, 2012 at 2:40 AM
Advertisement
Avatar
ASEMASTER6371
  • ASE Certified Mechanic
  • 52,796 POSTS
  • ASE Certified Mechanic
freon could be low causing the compressor to not come on.

Apr 1, 2012 at 2:54 AM
Avatar
RASMATAZ
  • ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Check the AC high and low pressures if it within specs-start here
Apr 1, 2012 at 2:55 AM
Avatar
RASMATAZ
  • ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Roy. you're getting faster than a speeding bullet-Have a great weekend buddy-
Apr 1, 2012 at 3:07 AM
Avatar
HKUKLA
  • MEMBER
  • 2 POSTS
Thanks, guys! I'll let you know what i find!
Apr 1, 2012 at 2:20 PM
Avatar
BILLMILL5050
  • MEMBER
  • 66 POSTS
how do you check for high and low pressures?
Aug 30, 2016 at 12:30 PM
Avatar
STRAILER
  • ASE Certified Mechanic
  • 54,840 POSTS
  • ASE Certified Mechanic
Here is a guide for you

https://www.2carpros.com/articles/re-charge-an-air-conditioner-system

Let us know what you find so it will help others

Best, Ken
Aug 31, 2016 at 9:27 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.