1999 Cadillac Deville display says "service AC system&

Tiny
BRJR14@SBCGLOBAL.NET
  • MEMBER
  • 1999 CADILLAC DEVILLE
  • V8
  • 2WD
  • AUTOMATIC
  • 124,000 MILES
The display says "service AC system. I checked the owners manual and it said " sensors that control the AC/heat system needs service. I tried to put freon in the compressor and I cannot keep the auto on so the Ac works, its goes back "econ", therefore I cant get the freon to take. What sensors are needing to be replaced and where are they located.
Do you
have the same problem?
Yes
No
Thursday, March 25th, 2010 AT 5:41 PM

1 Reply

Tiny
FACTORYJACK
  • EXPERT
If it is seeing low refrigerant, it will default to econ for compressor protection. To do this correctly, You should have the system diagnosed/recovered to determine the state of charge. It could be one of two things, it is actually low on refrigerant or, it has a faulty pressure/temp sensor falsely reporting a low refrigerant charge. The same low refrigerant code could set in either case.
Was this
answer
helpful?
Yes
No
Friday, March 26th, 2010 AT 12:14 AM

Please login or register to post a reply.

Recommended Guides