SPONSORED LINKS

Air conditioner is working sometimes

Tiny
JERRY DURO
  • MEMBER
  • 2003 CADILLAC CTS
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 54,000 MILES
Checking the system at proper temperature and humidity I get 95 on the low side and 100 high side. When it is working as it is now I get thirty degrees from the duct reading. It has been running for an hour now. The low side meter is got a little vibrating going on.

According to what I know it should not be putting out cold air with these readings. But, like I said it might not come on tomorrow or it might. This morning it came on and these are the readings.
SPONSORED LINKS
Tuesday, July 11th, 2017 AT 8:26 AM

5 Replies

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
This kind of sounds like a bad compressor but being auto temperature control you should have a mechanic scan for codes first. If compressor is bad system needs to be flushed. See link.
https://www.2carpros.com/articles/replace-air-conditioner-compressor
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
+1
Tuesday, July 11th, 2017 AT 9:31 AM
Tiny
JERRY DURO
  • MEMBER
  • 16 POSTS
One final question. I increased the cabin temperature to 90 and the compressor did not shutdown. Could there be a second problem?
Was this
answer
helpful?
Yes
No
Tuesday, July 11th, 2017 AT 10:54 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Well there could be these have auto temperature control and can only be diagnosed with a scanner that a mechanic uses. So that should be done as well, but if compressor is working with the pressures you gave sounds like it is shot.
Was this
answer
helpful?
Yes
No
+1
Tuesday, July 11th, 2017 AT 12:32 PM
Tiny
JERRY DURO
  • MEMBER
  • 16 POSTS
Thank you for your help.
Was this
answer
helpful?
Yes
No
Tuesday, July 11th, 2017 AT 12:48 PM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Make sure that the compressor runs before replacing it. It may not be running like the clutch is not engaging.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
+1
Tuesday, July 11th, 2017 AT 2:57 PM

Please login or register to post a reply.

Related Air Conditioner Not Working Content

Fix an Air Conditioning Not Working Video
VIDEO
Fix an Air Conditioning Not Working Video
Instructional repair video
Air Conditioner Not Working
GUIDE
Air Conditioner Not Working
Like any sub system in today's car a problem and be minor or a little more involved, this guide will help you find the problem and perform repairs. You can be the judge if...
VIEW MORE

Sponsored links