A/C blowing warm and cold air?

2010 HONDA CIVIC
234,000 MILES • 2.2L • 4 CYL • 2WD • AUTOMATIC
Avatar
MMICHAEL
  • MEMBER
  • 1 POST
when turn on the A/C its blow warm air about 10-15 minutes and then cold air come on for 5, 10 minutes it gets warm again.
May 24, 2023 at 1:26 PM
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.
Advertisement
Avatar
STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 POSTS
This sounds like you have an A/C compressor going out, but to be sure let's get a reading on the pressures when the engine is at 1,500 RPMs.

This video will help:

https://youtu.be/4EqdrBVb0sY

This guide can help as well:

https://www.2carpros.com/articles/comprehensive-guide-troubleshooting-intermittent-automotive-air-conditioner-problems

If the compressor is okay and the outlet pipe from the evaporator is cold at the firewall you may have a temperature actuator that is going out here is the location so you can check it out. Check out the images (below). Please let us know what you find. We are interested to see what it is.
Image (Click to enlarge)
Attached Media
May 25, 2023 at 10:14 AM
Advertisement