A/C is cold then gets warm

199,000 MILES • 4.8L • V8 • 2WD • AUTOMATIC
Avatar
ANONYMOUS
  • MEMBER
  • 1 POST
A/C will be cold and after a while (15 minutes to 1 hour) it gets warm. If I shut the truck off and back on it's cold again. This will work every time. The A/C is cold normally and when it gets warm the compressor is not on. If I shut the truck off for just a few seconds the compressor will kick on and it's nice and cold again. It could last 5 minutes or an hour. Some days it will work fine, normally when it is a little cooler out.
Mar 5, 2020 at 1:36 PM
Advertisement
Avatar
ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
Good morning,

Do you have a set of gauges to give me the high and low side readings?

If the low side pressure drops too low, the clutch will disengage and warm air comes out.

Roy
Mar 5, 2020 at 9:19 PM
Add a reply
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.

Frequently Asked Problems for This Vehicle